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Server functionality for HBase
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.regionserver;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.BindException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NavigableMap;
import java.util.Optional;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.LongAdder;
import org.apache.commons.lang3.mutable.MutableObject;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.ByteBufferExtendedCell;
import org.apache.hadoop.hbase.CacheEvictionStats;
import org.apache.hadoop.hbase.CacheEvictionStatsBuilder;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellScannable;
import org.apache.hadoop.hbase.CellScanner;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.DroppedSnapshotException;
import org.apache.hadoop.hbase.HBaseIOException;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.MultiActionResultTooLarge;
import org.apache.hadoop.hbase.NotServingRegionException;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.hadoop.hbase.RegionTooBusyException;
import org.apache.hadoop.hbase.Server;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.UnknownScannerException;
import org.apache.hadoop.hbase.client.Append;
import org.apache.hadoop.hbase.client.CheckAndMutate;
import org.apache.hadoop.hbase.client.CheckAndMutateResult;
import org.apache.hadoop.hbase.client.ConnectionUtils;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.Increment;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionReplicaUtil;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.Row;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.VersionInfoUtil;
import org.apache.hadoop.hbase.conf.ConfigurationObserver;
import org.apache.hadoop.hbase.exceptions.FailedSanityCheckException;
import org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException;
import org.apache.hadoop.hbase.exceptions.ScannerResetException;
import org.apache.hadoop.hbase.exceptions.UnknownProtocolException;
import org.apache.hadoop.hbase.io.ByteBuffAllocator;
import org.apache.hadoop.hbase.io.hfile.BlockCache;
import org.apache.hadoop.hbase.ipc.HBaseRPCErrorHandler;
import org.apache.hadoop.hbase.ipc.HBaseRpcController;
import org.apache.hadoop.hbase.ipc.PriorityFunction;
import org.apache.hadoop.hbase.ipc.QosPriority;
import org.apache.hadoop.hbase.ipc.RpcCall;
import org.apache.hadoop.hbase.ipc.RpcCallContext;
import org.apache.hadoop.hbase.ipc.RpcCallback;
import org.apache.hadoop.hbase.ipc.RpcScheduler;
import org.apache.hadoop.hbase.ipc.RpcServer;
import org.apache.hadoop.hbase.ipc.RpcServer.BlockingServiceAndInterface;
import org.apache.hadoop.hbase.ipc.RpcServerFactory;
import org.apache.hadoop.hbase.ipc.RpcServerInterface;
import org.apache.hadoop.hbase.ipc.ServerNotRunningYetException;
import org.apache.hadoop.hbase.ipc.ServerRpcController;
import org.apache.hadoop.hbase.log.HBaseMarkers;
import org.apache.hadoop.hbase.master.HMaster;
import org.apache.hadoop.hbase.master.MasterRpcServices;
import org.apache.hadoop.hbase.namequeues.NamedQueuePayload;
import org.apache.hadoop.hbase.namequeues.NamedQueueRecorder;
import org.apache.hadoop.hbase.namequeues.RpcLogDetails;
import org.apache.hadoop.hbase.namequeues.request.NamedQueueGetRequest;
import org.apache.hadoop.hbase.namequeues.response.NamedQueueGetResponse;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.procedure2.RSProcedureCallable;
import org.apache.hadoop.hbase.quotas.ActivePolicyEnforcement;
import org.apache.hadoop.hbase.quotas.OperationQuota;
import org.apache.hadoop.hbase.quotas.QuotaUtil;
import org.apache.hadoop.hbase.quotas.RegionServerRpcQuotaManager;
import org.apache.hadoop.hbase.quotas.RegionServerSpaceQuotaManager;
import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot;
import org.apache.hadoop.hbase.quotas.SpaceViolationPolicyEnforcement;
import org.apache.hadoop.hbase.regionserver.HRegion.RegionScannerImpl;
import org.apache.hadoop.hbase.regionserver.LeaseManager.Lease;
import org.apache.hadoop.hbase.regionserver.LeaseManager.LeaseStillHeldException;
import org.apache.hadoop.hbase.regionserver.Region.Operation;
import org.apache.hadoop.hbase.regionserver.ScannerContext.LimitScope;
import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;
import org.apache.hadoop.hbase.regionserver.handler.AssignRegionHandler;
import org.apache.hadoop.hbase.regionserver.handler.OpenMetaHandler;
import org.apache.hadoop.hbase.regionserver.handler.OpenPriorityRegionHandler;
import org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler;
import org.apache.hadoop.hbase.regionserver.handler.UnassignRegionHandler;
import org.apache.hadoop.hbase.security.Superusers;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.access.AccessChecker;
import org.apache.hadoop.hbase.security.access.NoopAccessChecker;
import org.apache.hadoop.hbase.security.access.Permission;
import org.apache.hadoop.hbase.security.access.ZKPermissionWatcher;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.DNS;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;
import org.apache.hadoop.hbase.wal.WAL;
import org.apache.hadoop.hbase.wal.WALEdit;
import org.apache.hadoop.hbase.wal.WALKey;
import org.apache.hadoop.hbase.wal.WALSplitUtil;
import org.apache.hadoop.hbase.wal.WALSplitUtil.MutationReplay;
import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.zookeeper.KeeperException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hbase.thirdparty.com.google.common.cache.Cache;
import org.apache.hbase.thirdparty.com.google.common.cache.CacheBuilder;
import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
import org.apache.hbase.thirdparty.com.google.protobuf.ByteString;
import org.apache.hbase.thirdparty.com.google.protobuf.Message;
import org.apache.hbase.thirdparty.com.google.protobuf.RpcController;
import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;
import org.apache.hbase.thirdparty.com.google.protobuf.TextFormat;
import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;
import org.apache.hbase.thirdparty.org.apache.commons.collections4.CollectionUtils;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
import org.apache.hadoop.hbase.shaded.protobuf.ResponseConverter;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearSlowLogResponseRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearSlowLogResponses;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactionSwitchRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactionSwitchResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest.RegionOpenInfo;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse.RegionOpeningState;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RemoteProcedureRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.SlowLogResponseRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.SlowLogResponses;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WALEntry;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Action;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest.FamilyPath;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Condition;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRegionLoadStats;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto.MutationType;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionAction;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionActionResult;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ResultOrException;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.NameBytesPair;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.NameInt64Pair;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;
import org.apache.hadoop.hbase.shaded.protobuf.generated.MapReduceProtos.ScanMetrics;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse.TableQuotaSnapshot;
import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;
import org.apache.hadoop.hbase.shaded.protobuf.generated.TooSlowLog.SlowLogPayload;
import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.BulkLoadDescriptor;
import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor;
import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor;
import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor;
/**
* Implements the regionserver RPC services.
*/
@InterfaceAudience.Private
@SuppressWarnings("deprecation")
public class RSRpcServices implements HBaseRPCErrorHandler,
AdminService.BlockingInterface, ClientService.BlockingInterface, PriorityFunction,
ConfigurationObserver {
protected static final Logger LOG = LoggerFactory.getLogger(RSRpcServices.class);
/** RPC scheduler to use for the region server. */
public static final String REGION_SERVER_RPC_SCHEDULER_FACTORY_CLASS =
"hbase.region.server.rpc.scheduler.factory.class";
/** RPC scheduler to use for the master. */
public static final String MASTER_RPC_SCHEDULER_FACTORY_CLASS =
"hbase.master.rpc.scheduler.factory.class";
/**
* Minimum allowable time limit delta (in milliseconds) that can be enforced during scans. This
* configuration exists to prevent the scenario where a time limit is specified to be so
* restrictive that the time limit is reached immediately (before any cells are scanned).
*/
private static final String REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA =
"hbase.region.server.rpc.minimum.scan.time.limit.delta";
/**
* Default value of {@link RSRpcServices#REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA}
*/
private static final long DEFAULT_REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA = 10;
/*
* Whether to reject rows with size > threshold defined by
* {@link RSRpcServices#BATCH_ROWS_THRESHOLD_NAME}
*/
private static final String REJECT_BATCH_ROWS_OVER_THRESHOLD =
"hbase.rpc.rows.size.threshold.reject";
/*
* Default value of config {@link RSRpcServices#REJECT_BATCH_ROWS_OVER_THRESHOLD}
*/
private static final boolean DEFAULT_REJECT_BATCH_ROWS_OVER_THRESHOLD = false;
// Request counter. (Includes requests that are not serviced by regions.)
// Count only once for requests with multiple actions like multi/caching-scan/replayBatch
final LongAdder requestCount = new LongAdder();
// Request counter for rpc get
final LongAdder rpcGetRequestCount = new LongAdder();
// Request counter for rpc scan
final LongAdder rpcScanRequestCount = new LongAdder();
// Request counter for scans that might end up in full scans
final LongAdder rpcFullScanRequestCount = new LongAdder();
// Request counter for rpc multi
final LongAdder rpcMultiRequestCount = new LongAdder();
// Request counter for rpc mutate
final LongAdder rpcMutateRequestCount = new LongAdder();
// Server to handle client requests.
final RpcServerInterface rpcServer;
final InetSocketAddress isa;
protected final HRegionServer regionServer;
private final long maxScannerResultSize;
// The reference to the priority extraction function
private final PriorityFunction priority;
private ScannerIdGenerator scannerIdGenerator;
private final ConcurrentMap scanners = new ConcurrentHashMap<>();
// Hold the name of a closed scanner for a while. This is used to keep compatible for old clients
// which may send next or close request to a region scanner which has already been exhausted. The
// entries will be removed automatically after scannerLeaseTimeoutPeriod.
private final Cache closedScanners;
/**
* The lease timeout period for client scanners (milliseconds).
*/
private final int scannerLeaseTimeoutPeriod;
/**
* The RPC timeout period (milliseconds)
*/
private final int rpcTimeout;
/**
* The minimum allowable delta to use for the scan limit
*/
private final long minimumScanTimeLimitDelta;
/**
* Row size threshold for multi requests above which a warning is logged
*/
private final int rowSizeWarnThreshold;
/*
* Whether we should reject requests with very high no of rows i.e. beyond threshold
* defined by rowSizeWarnThreshold
*/
private final boolean rejectRowsWithSizeOverThreshold;
final AtomicBoolean clearCompactionQueues = new AtomicBoolean(false);
private AccessChecker accessChecker;
private ZKPermissionWatcher zkPermissionWatcher;
/**
* Services launched in RSRpcServices. By default they are on but you can use the below
* booleans to selectively enable/disable either Admin or Client Service (Rare is the case
* where you would ever turn off one or the other).
*/
public static final String REGIONSERVER_ADMIN_SERVICE_CONFIG =
"hbase.regionserver.admin.executorService";
public static final String REGIONSERVER_CLIENT_SERVICE_CONFIG =
"hbase.regionserver.client.executorService";
/**
* An Rpc callback for closing a RegionScanner.
*/
private static final class RegionScannerCloseCallBack implements RpcCallback {
private final RegionScanner scanner;
public RegionScannerCloseCallBack(RegionScanner scanner) {
this.scanner = scanner;
}
@Override
public void run() throws IOException {
this.scanner.close();
}
}
/**
* An Rpc callback for doing shipped() call on a RegionScanner.
*/
private class RegionScannerShippedCallBack implements RpcCallback {
private final String scannerName;
private final Shipper shipper;
private final Lease lease;
public RegionScannerShippedCallBack(String scannerName, Shipper shipper, Lease lease) {
this.scannerName = scannerName;
this.shipper = shipper;
this.lease = lease;
}
@Override
public void run() throws IOException {
this.shipper.shipped();
// We're done. On way out re-add the above removed lease. The lease was temp removed for this
// Rpc call and we are at end of the call now. Time to add it back.
if (scanners.containsKey(scannerName)) {
if (lease != null) {
regionServer.getLeaseManager().addLease(lease);
}
}
}
}
/**
* An RpcCallBack that creates a list of scanners that needs to perform callBack operation on
* completion of multiGets.
*/
static class RegionScannersCloseCallBack implements RpcCallback {
private final List scanners = new ArrayList<>();
public void addScanner(RegionScanner scanner) {
this.scanners.add(scanner);
}
@Override
public void run() {
for (RegionScanner scanner : scanners) {
try {
scanner.close();
} catch (IOException e) {
LOG.error("Exception while closing the scanner " + scanner, e);
}
}
}
}
/**
* Holder class which holds the RegionScanner, nextCallSeq and RpcCallbacks together.
*/
static final class RegionScannerHolder {
private final AtomicLong nextCallSeq = new AtomicLong(0);
private final RegionScanner s;
private final HRegion r;
private final RpcCallback closeCallBack;
private final RpcCallback shippedCallback;
private byte[] rowOfLastPartialResult;
private boolean needCursor;
private boolean fullRegionScan;
private final String clientIPAndPort;
RegionScannerHolder(RegionScanner s, HRegion r,
RpcCallback closeCallBack, RpcCallback shippedCallback, boolean needCursor,
boolean fullRegionScan, String clientIPAndPort) {
this.s = s;
this.r = r;
this.closeCallBack = closeCallBack;
this.shippedCallback = shippedCallback;
this.needCursor = needCursor;
this.fullRegionScan = fullRegionScan;
this.clientIPAndPort = clientIPAndPort;
}
long getNextCallSeq() {
return nextCallSeq.get();
}
boolean incNextCallSeq(long currentSeq) {
// Use CAS to prevent multiple scan request running on the same scanner.
return nextCallSeq.compareAndSet(currentSeq, currentSeq + 1);
}
// Should be called only when we need to print lease expired messages otherwise
// cache the String once made.
@Override
public String toString() {
return this.clientIPAndPort + ", " + this.r.getRegionInfo().getRegionNameAsString();
}
}
/**
* Instantiated as a scanner lease. If the lease times out, the scanner is closed
*/
private class ScannerListener implements LeaseListener {
private final String scannerName;
ScannerListener(final String n) {
this.scannerName = n;
}
@Override
public void leaseExpired() {
RegionScannerHolder rsh = scanners.remove(this.scannerName);
if (rsh == null) {
LOG.warn("Scanner lease {} expired but no outstanding scanner", this.scannerName);
return;
}
LOG.info("Scanner lease {} expired {}, user={}", this.scannerName, rsh,
RpcServer.getRequestUserName().orElse(null));
RegionScanner s = rsh.s;
HRegion region = null;
try {
region = regionServer.getRegion(s.getRegionInfo().getRegionName());
if (region != null && region.getCoprocessorHost() != null) {
region.getCoprocessorHost().preScannerClose(s);
}
} catch (IOException e) {
LOG.error("Closing scanner {} {}, user={}", this.scannerName, rsh, e,
RpcServer.getRequestUserName().orElse(null));
} finally {
try {
s.close();
if (region != null && region.getCoprocessorHost() != null) {
region.getCoprocessorHost().postScannerClose(s);
}
} catch (IOException e) {
LOG.error("Closing scanner {} {}, user={}", this.scannerName, rsh, e,
RpcServer.getRequestUserName().orElse(null));
}
}
}
}
private static ResultOrException getResultOrException(final ClientProtos.Result r,
final int index){
return getResultOrException(ResponseConverter.buildActionResult(r), index);
}
private static ResultOrException getResultOrException(final Exception e, final int index) {
return getResultOrException(ResponseConverter.buildActionResult(e), index);
}
private static ResultOrException getResultOrException(
final ResultOrException.Builder builder, final int index) {
return builder.setIndex(index).build();
}
/**
* Checks for the following pre-checks in order:
*
* - RegionServer is running
* - If authorization is enabled, then RPC caller has ADMIN permissions
*
* @param requestName name of rpc request. Used in reporting failures to provide context.
* @throws ServiceException If any of the above listed pre-check fails.
*/
private void rpcPreCheck(String requestName) throws ServiceException {
try {
checkOpen();
requirePermission(requestName, Permission.Action.ADMIN);
} catch (IOException ioe) {
throw new ServiceException(ioe);
}
}
private boolean isClientCellBlockSupport(RpcCallContext context) {
return context != null && context.isClientCellBlockSupported();
}
private void addResult(final MutateResponse.Builder builder, final Result result,
final HBaseRpcController rpcc, boolean clientCellBlockSupported) {
if (result == null) return;
if (clientCellBlockSupported) {
builder.setResult(ProtobufUtil.toResultNoData(result));
rpcc.setCellScanner(result.cellScanner());
} else {
ClientProtos.Result pbr = ProtobufUtil.toResult(result);
builder.setResult(pbr);
}
}
private void addResults(ScanResponse.Builder builder, List results,
HBaseRpcController controller, boolean isDefaultRegion, boolean clientCellBlockSupported) {
builder.setStale(!isDefaultRegion);
if (results.isEmpty()) {
return;
}
if (clientCellBlockSupported) {
for (Result res : results) {
builder.addCellsPerResult(res.size());
builder.addPartialFlagPerResult(res.mayHaveMoreCellsInRow());
}
controller.setCellScanner(CellUtil.createCellScanner(results));
} else {
for (Result res : results) {
ClientProtos.Result pbr = ProtobufUtil.toResult(res);
builder.addResults(pbr);
}
}
}
private CheckAndMutateResult checkAndMutate(HRegion region, List actions,
CellScanner cellScanner, Condition condition, ActivePolicyEnforcement spaceQuotaEnforcement)
throws IOException {
int countOfCompleteMutation = 0;
try {
if (!region.getRegionInfo().isMetaRegion()) {
regionServer.getMemStoreFlusher().reclaimMemStoreMemory();
}
List mutations = new ArrayList<>();
for (ClientProtos.Action action: actions) {
if (action.hasGet()) {
throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" +
action.getGet());
}
MutationType type = action.getMutation().getMutateType();
switch (type) {
case PUT:
Put put = ProtobufUtil.toPut(action.getMutation(), cellScanner);
++countOfCompleteMutation;
checkCellSizeLimit(region, put);
spaceQuotaEnforcement.getPolicyEnforcement(region).check(put);
mutations.add(put);
break;
case DELETE:
Delete del = ProtobufUtil.toDelete(action.getMutation(), cellScanner);
++countOfCompleteMutation;
spaceQuotaEnforcement.getPolicyEnforcement(region).check(del);
mutations.add(del);
break;
case INCREMENT:
Increment increment = ProtobufUtil.toIncrement(action.getMutation(), cellScanner);
++countOfCompleteMutation;
checkCellSizeLimit(region, increment);
spaceQuotaEnforcement.getPolicyEnforcement(region).check(increment);
mutations.add(increment);
break;
case APPEND:
Append append = ProtobufUtil.toAppend(action.getMutation(), cellScanner);
++countOfCompleteMutation;
checkCellSizeLimit(region, append);
spaceQuotaEnforcement.getPolicyEnforcement(region).check(append);
mutations.add(append);
break;
default:
throw new DoNotRetryIOException("invalid mutation type : " + type);
}
}
if (mutations.size() == 0) {
return new CheckAndMutateResult(true, null);
} else {
CheckAndMutate checkAndMutate = ProtobufUtil.toCheckAndMutate(condition, mutations);
CheckAndMutateResult result = null;
if (region.getCoprocessorHost() != null) {
result = region.getCoprocessorHost().preCheckAndMutate(checkAndMutate);
}
if (result == null) {
result = region.checkAndMutate(checkAndMutate);
if (region.getCoprocessorHost() != null) {
result = region.getCoprocessorHost().postCheckAndMutate(checkAndMutate, result);
}
}
return result;
}
} finally {
// Currently, the checkAndMutate isn't supported by batch so it won't mess up the cell scanner
// even if the malformed cells are not skipped.
for (int i = countOfCompleteMutation; i < actions.size(); ++i) {
skipCellsForMutation(actions.get(i), cellScanner);
}
}
}
/**
* Execute an append mutation.
*
* @return result to return to client if default operation should be
* bypassed as indicated by RegionObserver, null otherwise
*/
private Result append(final HRegion region, final OperationQuota quota,
final MutationProto mutation, final CellScanner cellScanner, long nonceGroup,
ActivePolicyEnforcement spaceQuota)
throws IOException {
long before = EnvironmentEdgeManager.currentTime();
Append append = ProtobufUtil.toAppend(mutation, cellScanner);
checkCellSizeLimit(region, append);
spaceQuota.getPolicyEnforcement(region).check(append);
quota.addMutation(append);
long nonce = mutation.hasNonce() ? mutation.getNonce() : HConstants.NO_NONCE;
Result r = region.append(append, nonceGroup, nonce);
if (regionServer.getMetrics() != null) {
regionServer.getMetrics().updateAppend(region.getTableDescriptor().getTableName(),
EnvironmentEdgeManager.currentTime() - before);
}
return r == null ? Result.EMPTY_RESULT : r;
}
/**
* Execute an increment mutation.
*/
private Result increment(final HRegion region, final OperationQuota quota,
final MutationProto mutation, final CellScanner cells, long nonceGroup,
ActivePolicyEnforcement spaceQuota)
throws IOException {
long before = EnvironmentEdgeManager.currentTime();
Increment increment = ProtobufUtil.toIncrement(mutation, cells);
checkCellSizeLimit(region, increment);
spaceQuota.getPolicyEnforcement(region).check(increment);
quota.addMutation(increment);
long nonce = mutation.hasNonce() ? mutation.getNonce() : HConstants.NO_NONCE;
Result r = region.increment(increment, nonceGroup, nonce);
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
metricsRegionServer.updateIncrement(region.getTableDescriptor().getTableName(),
EnvironmentEdgeManager.currentTime() - before);
}
return r == null ? Result.EMPTY_RESULT : r;
}
/**
* Run through the regionMutation rm and per Mutation, do the work, and then when
* done, add an instance of a {@link ResultOrException} that corresponds to each Mutation.
* @param cellsToReturn Could be null. May be allocated in this method. This is what this
* method returns as a 'result'.
* @param closeCallBack the callback to be used with multigets
* @param context the current RpcCallContext
* @return Return the cellScanner passed
*/
private List doNonAtomicRegionMutation(final HRegion region,
final OperationQuota quota, final RegionAction actions, final CellScanner cellScanner,
final RegionActionResult.Builder builder, List cellsToReturn, long nonceGroup,
final RegionScannersCloseCallBack closeCallBack, RpcCallContext context,
ActivePolicyEnforcement spaceQuotaEnforcement) {
// Gather up CONTIGUOUS Puts and Deletes in this mutations List. Idea is that rather than do
// one at a time, we instead pass them in batch. Be aware that the corresponding
// ResultOrException instance that matches each Put or Delete is then added down in the
// doNonAtomicBatchOp call. We should be staying aligned though the Put and Delete are
// deferred/batched
List mutations = null;
long maxQuotaResultSize = Math.min(maxScannerResultSize, quota.getReadAvailable());
IOException sizeIOE = null;
Object lastBlock = null;
ClientProtos.ResultOrException.Builder resultOrExceptionBuilder = ResultOrException.newBuilder();
boolean hasResultOrException = false;
for (ClientProtos.Action action : actions.getActionList()) {
hasResultOrException = false;
resultOrExceptionBuilder.clear();
try {
Result r = null;
if (context != null
&& context.isRetryImmediatelySupported()
&& (context.getResponseCellSize() > maxQuotaResultSize
|| context.getResponseBlockSize() + context.getResponseExceptionSize()
> maxQuotaResultSize)) {
// We're storing the exception since the exception and reason string won't
// change after the response size limit is reached.
if (sizeIOE == null ) {
// We don't need the stack un-winding do don't throw the exception.
// Throwing will kill the JVM's JIT.
//
// Instead just create the exception and then store it.
sizeIOE = new MultiActionResultTooLarge("Max size exceeded"
+ " CellSize: " + context.getResponseCellSize()
+ " BlockSize: " + context.getResponseBlockSize());
// Only report the exception once since there's only one request that
// caused the exception. Otherwise this number will dominate the exceptions count.
rpcServer.getMetrics().exception(sizeIOE);
}
// Now that there's an exception is known to be created
// use it for the response.
//
// This will create a copy in the builder.
NameBytesPair pair = ResponseConverter.buildException(sizeIOE);
resultOrExceptionBuilder.setException(pair);
context.incrementResponseExceptionSize(pair.getSerializedSize());
resultOrExceptionBuilder.setIndex(action.getIndex());
builder.addResultOrException(resultOrExceptionBuilder.build());
skipCellsForMutation(action, cellScanner);
continue;
}
if (action.hasGet()) {
long before = EnvironmentEdgeManager.currentTime();
ClientProtos.Get pbGet = action.getGet();
// An asynchbase client, https://github.com/OpenTSDB/asynchbase, starts by trying to do
// a get closest before. Throwing the UnknownProtocolException signals it that it needs
// to switch and do hbase2 protocol (HBase servers do not tell clients what versions
// they are; its a problem for non-native clients like asynchbase. HBASE-20225.
if (pbGet.hasClosestRowBefore() && pbGet.getClosestRowBefore()) {
throw new UnknownProtocolException("Is this a pre-hbase-1.0.0 or asynchbase client? " +
"Client is invoking getClosestRowBefore removed in hbase-2.0.0 replaced by " +
"reverse Scan.");
}
try {
Get get = ProtobufUtil.toGet(pbGet);
if (context != null) {
r = get(get, (region), closeCallBack, context);
} else {
r = region.get(get);
}
} finally {
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
metricsRegionServer.updateGet(
region.getTableDescriptor().getTableName(),
EnvironmentEdgeManager.currentTime() - before);
}
}
} else if (action.hasServiceCall()) {
hasResultOrException = true;
com.google.protobuf.Message result =
execServiceOnRegion(region, action.getServiceCall());
ClientProtos.CoprocessorServiceResult.Builder serviceResultBuilder =
ClientProtos.CoprocessorServiceResult.newBuilder();
resultOrExceptionBuilder.setServiceResult(
serviceResultBuilder.setValue(
serviceResultBuilder.getValueBuilder()
.setName(result.getClass().getName())
// TODO: Copy!!!
.setValue(UnsafeByteOperations.unsafeWrap(result.toByteArray()))));
} else if (action.hasMutation()) {
MutationType type = action.getMutation().getMutateType();
if (type != MutationType.PUT && type != MutationType.DELETE && mutations != null &&
!mutations.isEmpty()) {
// Flush out any Puts or Deletes already collected.
doNonAtomicBatchOp(builder, region, quota, mutations, cellScanner,
spaceQuotaEnforcement);
mutations.clear();
}
switch (type) {
case APPEND:
r = append(region, quota, action.getMutation(), cellScanner, nonceGroup,
spaceQuotaEnforcement);
break;
case INCREMENT:
r = increment(region, quota, action.getMutation(), cellScanner, nonceGroup,
spaceQuotaEnforcement);
break;
case PUT:
case DELETE:
// Collect the individual mutations and apply in a batch
if (mutations == null) {
mutations = new ArrayList<>(actions.getActionCount());
}
mutations.add(action);
break;
default:
throw new DoNotRetryIOException("Unsupported mutate type: " + type.name());
}
} else {
throw new HBaseIOException("Unexpected Action type");
}
if (r != null) {
ClientProtos.Result pbResult = null;
if (isClientCellBlockSupport(context)) {
pbResult = ProtobufUtil.toResultNoData(r);
// Hard to guess the size here. Just make a rough guess.
if (cellsToReturn == null) {
cellsToReturn = new ArrayList<>();
}
cellsToReturn.add(r);
} else {
pbResult = ProtobufUtil.toResult(r);
}
lastBlock = addSize(context, r, lastBlock);
hasResultOrException = true;
resultOrExceptionBuilder.setResult(pbResult);
}
// Could get to here and there was no result and no exception. Presumes we added
// a Put or Delete to the collecting Mutations List for adding later. In this
// case the corresponding ResultOrException instance for the Put or Delete will be added
// down in the doNonAtomicBatchOp method call rather than up here.
} catch (IOException ie) {
rpcServer.getMetrics().exception(ie);
hasResultOrException = true;
NameBytesPair pair = ResponseConverter.buildException(ie);
resultOrExceptionBuilder.setException(pair);
context.incrementResponseExceptionSize(pair.getSerializedSize());
}
if (hasResultOrException) {
// Propagate index.
resultOrExceptionBuilder.setIndex(action.getIndex());
builder.addResultOrException(resultOrExceptionBuilder.build());
}
}
// Finish up any outstanding mutations
if (!CollectionUtils.isEmpty(mutations)) {
doNonAtomicBatchOp(builder, region, quota, mutations, cellScanner, spaceQuotaEnforcement);
}
return cellsToReturn;
}
private void checkCellSizeLimit(final HRegion r, final Mutation m) throws IOException {
if (r.maxCellSize > 0) {
CellScanner cells = m.cellScanner();
while (cells.advance()) {
int size = PrivateCellUtil.estimatedSerializedSizeOf(cells.current());
if (size > r.maxCellSize) {
String msg = "Cell with size " + size + " exceeds limit of " + r.maxCellSize + " bytes";
LOG.debug(msg);
throw new DoNotRetryIOException(msg);
}
}
}
}
private void doAtomicBatchOp(final RegionActionResult.Builder builder, final HRegion region,
final OperationQuota quota, final List mutations,
final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement)
throws IOException {
// Just throw the exception. The exception will be caught and then added to region-level
// exception for RegionAction. Leaving the null to action result is ok since the null
// result is viewed as failure by hbase client. And the region-lever exception will be used
// to replaced the null result. see AsyncRequestFutureImpl#receiveMultiAction and
// AsyncBatchRpcRetryingCaller#onComplete for more details.
doBatchOp(builder, region, quota, mutations, cells, spaceQuotaEnforcement, true);
}
private void doNonAtomicBatchOp(final RegionActionResult.Builder builder, final HRegion region,
final OperationQuota quota, final List mutations,
final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement) {
try {
doBatchOp(builder, region, quota, mutations, cells, spaceQuotaEnforcement, false);
} catch (IOException e) {
// Set the exception for each action. The mutations in same RegionAction are group to
// different batch and then be processed individually. Hence, we don't set the region-level
// exception here for whole RegionAction.
for (Action mutation : mutations) {
builder.addResultOrException(getResultOrException(e, mutation.getIndex()));
}
}
}
/**
* Execute a list of mutations.
*
* @param builder
* @param region
* @param mutations
*/
private void doBatchOp(final RegionActionResult.Builder builder, final HRegion region,
final OperationQuota quota, final List mutations,
final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement, boolean atomic)
throws IOException {
Mutation[] mArray = new Mutation[mutations.size()];
long before = EnvironmentEdgeManager.currentTime();
boolean batchContainsPuts = false, batchContainsDelete = false;
try {
/** HBASE-17924
* mutationActionMap is a map to map the relation between mutations and actions
* since mutation array may have been reoredered.In order to return the right
* result or exception to the corresponding actions, We need to know which action
* is the mutation belong to. We can't sort ClientProtos.Action array, since they
* are bonded to cellscanners.
*/
Map mutationActionMap = new HashMap<>();
int i = 0;
for (ClientProtos.Action action: mutations) {
if (action.hasGet()) {
throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" +
action.getGet());
}
MutationProto m = action.getMutation();
Mutation mutation;
switch (m.getMutateType()) {
case PUT:
mutation = ProtobufUtil.toPut(m, cells);
batchContainsPuts = true;
break;
case DELETE:
mutation = ProtobufUtil.toDelete(m, cells);
batchContainsDelete = true;
break;
case INCREMENT:
mutation = ProtobufUtil.toIncrement(m, cells);
break;
case APPEND:
mutation = ProtobufUtil.toAppend(m, cells);
break;
default:
throw new DoNotRetryIOException("Invalid mutation type : " + m.getMutateType());
}
mutationActionMap.put(mutation, action);
mArray[i++] = mutation;
checkCellSizeLimit(region, mutation);
// Check if a space quota disallows this mutation
spaceQuotaEnforcement.getPolicyEnforcement(region).check(mutation);
quota.addMutation(mutation);
}
if (!region.getRegionInfo().isMetaRegion()) {
regionServer.getMemStoreFlusher().reclaimMemStoreMemory();
}
// HBASE-17924
// Sort to improve lock efficiency for non-atomic batch of operations. If atomic
// order is preserved as its expected from the client
if (!atomic) {
Arrays.sort(mArray, (v1, v2) -> Row.COMPARATOR.compare(v1, v2));
}
OperationStatus[] codes = region.batchMutate(mArray, atomic, HConstants.NO_NONCE,
HConstants.NO_NONCE);
// When atomic is true, it indicates that the mutateRow API or the batch API with
// RowMutations is called. In this case, we need to merge the results of the
// Increment/Append operations if the mutations include those operations, and set the merged
// result to the first element of the ResultOrException list
if (atomic) {
List resultOrExceptions = new ArrayList<>();
List results = new ArrayList<>();
for (i = 0; i < codes.length; i++) {
if (codes[i].getResult() != null) {
results.add(codes[i].getResult());
}
if (i != 0) {
resultOrExceptions.add(getResultOrException(
ClientProtos.Result.getDefaultInstance(), i));
}
}
if (results.isEmpty()) {
builder.addResultOrException(getResultOrException(
ClientProtos.Result.getDefaultInstance(), 0));
} else {
// Merge the results of the Increment/Append operations
List cellList = new ArrayList<>();
for (Result result : results) {
if (result.rawCells() != null) {
cellList.addAll(Arrays.asList(result.rawCells()));
}
}
Result result = Result.create(cellList);
// Set the merged result of the Increment/Append operations to the first element of the
// ResultOrException list
builder.addResultOrException(getResultOrException(ProtobufUtil.toResult(result), 0));
}
builder.addAllResultOrException(resultOrExceptions);
return;
}
for (i = 0; i < codes.length; i++) {
Mutation currentMutation = mArray[i];
ClientProtos.Action currentAction = mutationActionMap.get(currentMutation);
int index = currentAction.hasIndex() ? currentAction.getIndex() : i;
Exception e;
switch (codes[i].getOperationStatusCode()) {
case BAD_FAMILY:
e = new NoSuchColumnFamilyException(codes[i].getExceptionMsg());
builder.addResultOrException(getResultOrException(e, index));
break;
case SANITY_CHECK_FAILURE:
e = new FailedSanityCheckException(codes[i].getExceptionMsg());
builder.addResultOrException(getResultOrException(e, index));
break;
default:
e = new DoNotRetryIOException(codes[i].getExceptionMsg());
builder.addResultOrException(getResultOrException(e, index));
break;
case SUCCESS:
builder.addResultOrException(getResultOrException(
ClientProtos.Result.getDefaultInstance(), index));
break;
case STORE_TOO_BUSY:
e = new RegionTooBusyException(codes[i].getExceptionMsg());
builder.addResultOrException(getResultOrException(e, index));
break;
}
}
} finally {
int processedMutationIndex = 0;
for (Action mutation : mutations) {
// The non-null mArray[i] means the cell scanner has been read.
if (mArray[processedMutationIndex++] == null) {
skipCellsForMutation(mutation, cells);
}
}
updateMutationMetrics(region, before, batchContainsPuts, batchContainsDelete);
}
}
private void updateMutationMetrics(HRegion region, long starttime, boolean batchContainsPuts,
boolean batchContainsDelete) {
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
long after = EnvironmentEdgeManager.currentTime();
if (batchContainsPuts) {
metricsRegionServer.updatePutBatch(
region.getTableDescriptor().getTableName(), after - starttime);
}
if (batchContainsDelete) {
metricsRegionServer.updateDeleteBatch(
region.getTableDescriptor().getTableName(), after - starttime);
}
}
}
/**
* Execute a list of Put/Delete mutations. The function returns OperationStatus instead of
* constructing MultiResponse to save a possible loop if caller doesn't need MultiResponse.
* @param region
* @param mutations
* @param replaySeqId
* @return an array of OperationStatus which internally contains the OperationStatusCode and the
* exceptionMessage if any
* @throws IOException
*/
private OperationStatus [] doReplayBatchOp(final HRegion region,
final List mutations, long replaySeqId) throws IOException {
long before = EnvironmentEdgeManager.currentTime();
boolean batchContainsPuts = false, batchContainsDelete = false;
try {
for (Iterator it = mutations.iterator(); it.hasNext();) {
MutationReplay m = it.next();
if (m.getType() == MutationType.PUT) {
batchContainsPuts = true;
} else {
batchContainsDelete = true;
}
NavigableMap> map = m.mutation.getFamilyCellMap();
List metaCells = map.get(WALEdit.METAFAMILY);
if (metaCells != null && !metaCells.isEmpty()) {
for (Cell metaCell : metaCells) {
CompactionDescriptor compactionDesc = WALEdit.getCompaction(metaCell);
boolean isDefaultReplica = RegionReplicaUtil.isDefaultReplica(region.getRegionInfo());
HRegion hRegion = region;
if (compactionDesc != null) {
// replay the compaction. Remove the files from stores only if we are the primary
// region replica (thus own the files)
hRegion.replayWALCompactionMarker(compactionDesc, !isDefaultReplica, isDefaultReplica,
replaySeqId);
continue;
}
FlushDescriptor flushDesc = WALEdit.getFlushDescriptor(metaCell);
if (flushDesc != null && !isDefaultReplica) {
hRegion.replayWALFlushMarker(flushDesc, replaySeqId);
continue;
}
RegionEventDescriptor regionEvent = WALEdit.getRegionEventDescriptor(metaCell);
if (regionEvent != null && !isDefaultReplica) {
hRegion.replayWALRegionEventMarker(regionEvent);
continue;
}
BulkLoadDescriptor bulkLoadEvent = WALEdit.getBulkLoadDescriptor(metaCell);
if (bulkLoadEvent != null) {
hRegion.replayWALBulkLoadEventMarker(bulkLoadEvent);
continue;
}
}
it.remove();
}
}
requestCount.increment();
if (!region.getRegionInfo().isMetaRegion()) {
regionServer.getMemStoreFlusher().reclaimMemStoreMemory();
}
return region.batchReplay(mutations.toArray(
new MutationReplay[mutations.size()]), replaySeqId);
} finally {
updateMutationMetrics(region, before, batchContainsPuts, batchContainsDelete);
}
}
private void closeAllScanners() {
// Close any outstanding scanners. Means they'll get an UnknownScanner
// exception next time they come in.
for (Map.Entry e : scanners.entrySet()) {
try {
e.getValue().s.close();
} catch (IOException ioe) {
LOG.warn("Closing scanner " + e.getKey(), ioe);
}
}
}
// Directly invoked only for testing
public RSRpcServices(final HRegionServer rs) throws IOException {
final Configuration conf = rs.getConfiguration();
regionServer = rs;
rowSizeWarnThreshold = conf.getInt(
HConstants.BATCH_ROWS_THRESHOLD_NAME, HConstants.BATCH_ROWS_THRESHOLD_DEFAULT);
rejectRowsWithSizeOverThreshold =
conf.getBoolean(REJECT_BATCH_ROWS_OVER_THRESHOLD, DEFAULT_REJECT_BATCH_ROWS_OVER_THRESHOLD);
final RpcSchedulerFactory rpcSchedulerFactory;
try {
rpcSchedulerFactory = getRpcSchedulerFactoryClass().asSubclass(RpcSchedulerFactory.class)
.getDeclaredConstructor().newInstance();
} catch (NoSuchMethodException | InvocationTargetException |
InstantiationException | IllegalAccessException e) {
throw new IllegalArgumentException(e);
}
// Server to handle client requests.
final InetSocketAddress initialIsa;
final InetSocketAddress bindAddress;
if(this instanceof MasterRpcServices) {
String hostname = DNS.getHostname(conf, DNS.ServerType.MASTER);
int port = conf.getInt(HConstants.MASTER_PORT, HConstants.DEFAULT_MASTER_PORT);
// Creation of a HSA will force a resolve.
initialIsa = new InetSocketAddress(hostname, port);
bindAddress = new InetSocketAddress(conf.get("hbase.master.ipc.address", hostname), port);
} else {
String hostname = DNS.getHostname(conf, DNS.ServerType.REGIONSERVER);
int port = conf.getInt(HConstants.REGIONSERVER_PORT,
HConstants.DEFAULT_REGIONSERVER_PORT);
// Creation of a HSA will force a resolve.
initialIsa = new InetSocketAddress(hostname, port);
bindAddress =
new InetSocketAddress(conf.get("hbase.regionserver.ipc.address", hostname), port);
}
if (initialIsa.getAddress() == null) {
throw new IllegalArgumentException("Failed resolve of " + initialIsa);
}
priority = createPriority();
// Using Address means we don't get the IP too. Shorten it more even to just the host name
// w/o the domain.
final String name = rs.getProcessName() + "/" +
Address.fromParts(initialIsa.getHostName(), initialIsa.getPort()).toStringWithoutDomain();
// Set how many times to retry talking to another server over Connection.
ConnectionUtils.setServerSideHConnectionRetriesConfig(conf, name, LOG);
rpcServer = createRpcServer(rs, rpcSchedulerFactory, bindAddress, name);
rpcServer.setRsRpcServices(this);
if (!(rs instanceof HMaster)) {
rpcServer.setNamedQueueRecorder(rs.getNamedQueueRecorder());
}
scannerLeaseTimeoutPeriod = conf.getInt(
HConstants.HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD,
HConstants.DEFAULT_HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD);
maxScannerResultSize = conf.getLong(
HConstants.HBASE_SERVER_SCANNER_MAX_RESULT_SIZE_KEY,
HConstants.DEFAULT_HBASE_SERVER_SCANNER_MAX_RESULT_SIZE);
rpcTimeout = conf.getInt(
HConstants.HBASE_RPC_TIMEOUT_KEY,
HConstants.DEFAULT_HBASE_RPC_TIMEOUT);
minimumScanTimeLimitDelta = conf.getLong(
REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA,
DEFAULT_REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA);
final InetSocketAddress address = rpcServer.getListenerAddress();
if (address == null) {
throw new IOException("Listener channel is closed");
}
// Set our address, however we need the final port that was given to rpcServer
isa = new InetSocketAddress(initialIsa.getHostName(), address.getPort());
rpcServer.setErrorHandler(this);
rs.setName(name);
closedScanners = CacheBuilder.newBuilder()
.expireAfterAccess(scannerLeaseTimeoutPeriod, TimeUnit.MILLISECONDS).build();
}
protected RpcServerInterface createRpcServer(
final Server server,
final RpcSchedulerFactory rpcSchedulerFactory,
final InetSocketAddress bindAddress,
final String name
) throws IOException {
final Configuration conf = server.getConfiguration();
boolean reservoirEnabled = conf.getBoolean(ByteBuffAllocator.ALLOCATOR_POOL_ENABLED_KEY, true);
try {
return RpcServerFactory.createRpcServer(server, name, getServices(),
bindAddress, // use final bindAddress for this server.
conf, rpcSchedulerFactory.create(conf, this, server), reservoirEnabled);
} catch (BindException be) {
throw new IOException(be.getMessage() + ". To switch ports use the '"
+ HConstants.REGIONSERVER_PORT + "' configuration property.",
be.getCause() != null ? be.getCause() : be);
}
}
protected Class getRpcSchedulerFactoryClass() {
final Configuration conf = regionServer.getConfiguration();
return conf.getClass(REGION_SERVER_RPC_SCHEDULER_FACTORY_CLASS,
SimpleRpcSchedulerFactory.class);
}
@Override
public void onConfigurationChange(Configuration newConf) {
if (rpcServer instanceof ConfigurationObserver) {
((ConfigurationObserver)rpcServer).onConfigurationChange(newConf);
}
}
protected PriorityFunction createPriority() {
return new AnnotationReadingPriorityFunction(this);
}
protected void requirePermission(String request, Permission.Action perm) throws IOException {
if (accessChecker != null) {
accessChecker.requirePermission(RpcServer.getRequestUser().orElse(null), request, null, perm);
}
}
public int getScannersCount() {
return scanners.size();
}
/**
* @return The outstanding RegionScanner for scannerId or null if none found.
*/
RegionScanner getScanner(long scannerId) {
RegionScannerHolder rsh = getRegionScannerHolder(scannerId);
return rsh == null? null: rsh.s;
}
/**
* @return The associated RegionScannerHolder for scannerId or null.
*/
private RegionScannerHolder getRegionScannerHolder(long scannerId) {
return scanners.get(toScannerName(scannerId));
}
public String getScanDetailsWithId(long scannerId) {
RegionScanner scanner = getScanner(scannerId);
if (scanner == null) {
return null;
}
StringBuilder builder = new StringBuilder();
builder.append("table: ").append(scanner.getRegionInfo().getTable().getNameAsString());
builder.append(" region: ").append(scanner.getRegionInfo().getRegionNameAsString());
return builder.toString();
}
public String getScanDetailsWithRequest(ScanRequest request) {
try {
if (!request.hasRegion()) {
return null;
}
Region region = getRegion(request.getRegion());
StringBuilder builder = new StringBuilder();
builder.append("table: ").append(region.getRegionInfo().getTable().getNameAsString());
builder.append(" region: ").append(region.getRegionInfo().getRegionNameAsString());
return builder.toString();
} catch (IOException ignored) {
return null;
}
}
/**
* Get the vtime associated with the scanner.
* Currently the vtime is the number of "next" calls.
*/
long getScannerVirtualTime(long scannerId) {
RegionScannerHolder rsh = getRegionScannerHolder(scannerId);
return rsh == null? 0L: rsh.getNextCallSeq();
}
/**
* Method to account for the size of retained cells and retained data blocks.
* @param context rpc call context
* @param r result to add size.
* @param lastBlock last block to check whether we need to add the block size in context.
* @return an object that represents the last referenced block from this response.
*/
Object addSize(RpcCallContext context, Result r, Object lastBlock) {
if (context != null && r != null && !r.isEmpty()) {
for (Cell c : r.rawCells()) {
context.incrementResponseCellSize(PrivateCellUtil.estimatedSerializedSizeOf(c));
// Since byte buffers can point all kinds of crazy places it's harder to keep track
// of which blocks are kept alive by what byte buffer.
// So we make a guess.
if (c instanceof ByteBufferExtendedCell) {
ByteBufferExtendedCell bbCell = (ByteBufferExtendedCell) c;
ByteBuffer bb = bbCell.getValueByteBuffer();
if (bb != lastBlock) {
context.incrementResponseBlockSize(bb.capacity());
lastBlock = bb;
}
} else {
// We're using the last block being the same as the current block as
// a proxy for pointing to a new block. This won't be exact.
// If there are multiple gets that bounce back and forth
// Then it's possible that this will over count the size of
// referenced blocks. However it's better to over count and
// use two rpcs than to OOME the regionserver.
byte[] valueArray = c.getValueArray();
if (valueArray != lastBlock) {
context.incrementResponseBlockSize(valueArray.length);
lastBlock = valueArray;
}
}
}
}
return lastBlock;
}
/**
* @return Remote client's ip and port else null if can't be determined.
*/
static String getRemoteClientIpAndPort() {
RpcCall rpcCall = RpcServer.getCurrentCall().orElse(null);
if (rpcCall == null) {
return HConstants.EMPTY_STRING;
}
InetAddress address = rpcCall.getRemoteAddress();
if (address == null) {
return HConstants.EMPTY_STRING;
}
// Be careful here with InetAddress. Do InetAddress#getHostAddress. It will not do a name
// resolution. Just use the IP. It is generally a smaller amount of info to keep around while
// scanning than a hostname anyways.
return Address.fromParts(address.getHostAddress(), rpcCall.getRemotePort()).toString();
}
private RegionScannerHolder addScanner(String scannerName, RegionScanner s, Shipper shipper,
HRegion r, boolean needCursor, boolean fullRegionScan) throws LeaseStillHeldException {
Lease lease = regionServer.getLeaseManager().createLease(
scannerName, this.scannerLeaseTimeoutPeriod, new ScannerListener(scannerName));
RpcCallback shippedCallback = new RegionScannerShippedCallBack(scannerName, shipper, lease);
RpcCallback closeCallback = s instanceof RpcCallback?
(RpcCallback)s: new RegionScannerCloseCallBack(s);
RegionScannerHolder rsh = new RegionScannerHolder(s, r, closeCallback, shippedCallback,
needCursor, fullRegionScan, getRemoteClientIpAndPort());
RegionScannerHolder existing = scanners.putIfAbsent(scannerName, rsh);
assert existing == null : "scannerId must be unique within regionserver's whole lifecycle! " +
scannerName + ", " + existing;
return rsh;
}
private boolean isFullRegionScan(Scan scan, HRegion region) {
// If the scan start row equals or less than the start key of the region
// and stop row greater than equals end key (if stop row present)
// or if the stop row is empty
// account this as a full region scan
if (Bytes.compareTo(scan.getStartRow(), region.getRegionInfo().getStartKey()) <= 0
&& (Bytes.compareTo(scan.getStopRow(), region.getRegionInfo().getEndKey()) >= 0 &&
!Bytes.equals(region.getRegionInfo().getEndKey(), HConstants.EMPTY_END_ROW)
|| Bytes.equals(scan.getStopRow(), HConstants.EMPTY_END_ROW))) {
return true;
}
return false;
}
/**
* Find the HRegion based on a region specifier
*
* @param regionSpecifier the region specifier
* @return the corresponding region
* @throws IOException if the specifier is not null,
* but failed to find the region
*/
public HRegion getRegion(
final RegionSpecifier regionSpecifier) throws IOException {
return regionServer.getRegion(regionSpecifier.getValue().toByteArray());
}
/**
* Find the List of HRegions based on a list of region specifiers
*
* @param regionSpecifiers the list of region specifiers
* @return the corresponding list of regions
* @throws IOException if any of the specifiers is not null,
* but failed to find the region
*/
private List getRegions(final List regionSpecifiers,
final CacheEvictionStatsBuilder stats) {
List regions = Lists.newArrayListWithCapacity(regionSpecifiers.size());
for (RegionSpecifier regionSpecifier: regionSpecifiers) {
try {
regions.add(regionServer.getRegion(regionSpecifier.getValue().toByteArray()));
} catch (NotServingRegionException e) {
stats.addException(regionSpecifier.getValue().toByteArray(), e);
}
}
return regions;
}
public PriorityFunction getPriority() {
return priority;
}
public Configuration getConfiguration() {
return regionServer.getConfiguration();
}
private RegionServerRpcQuotaManager getRpcQuotaManager() {
return regionServer.getRegionServerRpcQuotaManager();
}
private RegionServerSpaceQuotaManager getSpaceQuotaManager() {
return regionServer.getRegionServerSpaceQuotaManager();
}
void start(ZKWatcher zkWatcher) {
if (AccessChecker.isAuthorizationSupported(getConfiguration())) {
accessChecker = new AccessChecker(getConfiguration());
} else {
accessChecker = new NoopAccessChecker(getConfiguration());
}
zkPermissionWatcher =
new ZKPermissionWatcher(zkWatcher, accessChecker.getAuthManager(), getConfiguration());
try {
zkPermissionWatcher.start();
} catch (KeeperException e) {
LOG.error("ZooKeeper permission watcher initialization failed", e);
}
this.scannerIdGenerator = new ScannerIdGenerator(this.regionServer.serverName);
rpcServer.start();
}
void stop() {
if (zkPermissionWatcher != null) {
zkPermissionWatcher.close();
}
closeAllScanners();
rpcServer.stop();
}
/**
* Called to verify that this server is up and running.
*/
// TODO : Rename this and HMaster#checkInitialized to isRunning() (or a better name).
protected void checkOpen() throws IOException {
if (regionServer.isAborted()) {
throw new RegionServerAbortedException("Server " + regionServer.serverName + " aborting");
}
if (regionServer.isStopped()) {
throw new RegionServerStoppedException("Server " + regionServer.serverName + " stopping");
}
if (!regionServer.isDataFileSystemOk()) {
throw new RegionServerStoppedException("File system not available");
}
if (!regionServer.isOnline()) {
throw new ServerNotRunningYetException("Server " + regionServer.serverName
+ " is not running yet");
}
}
/**
* By default, put up an Admin and a Client Service.
* Set booleans hbase.regionserver.admin.executorService and
* hbase.regionserver.client.executorService if you want to enable/disable services.
* Default is that both are enabled.
* @return immutable list of blocking services and the security info classes that this server
* supports
*/
protected List getServices() {
boolean admin =
getConfiguration().getBoolean(REGIONSERVER_ADMIN_SERVICE_CONFIG, true);
boolean client =
getConfiguration().getBoolean(REGIONSERVER_CLIENT_SERVICE_CONFIG, true);
List bssi = new ArrayList<>();
if (client) {
bssi.add(new BlockingServiceAndInterface(
ClientService.newReflectiveBlockingService(this),
ClientService.BlockingInterface.class));
}
if (admin) {
bssi.add(new BlockingServiceAndInterface(
AdminService.newReflectiveBlockingService(this),
AdminService.BlockingInterface.class));
}
return new org.apache.hbase.thirdparty.com.google.common.collect.
ImmutableList.Builder().addAll(bssi).build();
}
public InetSocketAddress getSocketAddress() {
return isa;
}
@Override
public int getPriority(RequestHeader header, Message param, User user) {
return priority.getPriority(header, param, user);
}
@Override
public long getDeadline(RequestHeader header, Message param) {
return priority.getDeadline(header, param);
}
/*
* Check if an OOME and, if so, abort immediately to avoid creating more objects.
*
* @param e
*
* @return True if we OOME'd and are aborting.
*/
@Override
public boolean checkOOME(final Throwable e) {
return exitIfOOME(e);
}
public static boolean exitIfOOME(final Throwable e ){
boolean stop = false;
try {
if (e instanceof OutOfMemoryError
|| (e.getCause() != null && e.getCause() instanceof OutOfMemoryError)
|| (e.getMessage() != null && e.getMessage().contains(
"java.lang.OutOfMemoryError"))) {
stop = true;
LOG.error(HBaseMarkers.FATAL, "Run out of memory; "
+ RSRpcServices.class.getSimpleName() + " will abort itself immediately",
e);
}
} finally {
if (stop) {
Runtime.getRuntime().halt(1);
}
}
return stop;
}
/**
* Close a region on the region server.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public CloseRegionResponse closeRegion(final RpcController controller,
final CloseRegionRequest request) throws ServiceException {
final ServerName sn = (request.hasDestinationServer() ?
ProtobufUtil.toServerName(request.getDestinationServer()) : null);
try {
checkOpen();
throwOnWrongStartCode(request);
final String encodedRegionName = ProtobufUtil.getRegionEncodedName(request.getRegion());
requestCount.increment();
if (sn == null) {
LOG.info("Close " + encodedRegionName + " without moving");
} else {
LOG.info("Close " + encodedRegionName + ", moving to " + sn);
}
boolean closed = regionServer.closeRegion(encodedRegionName, false, sn);
CloseRegionResponse.Builder builder = CloseRegionResponse.newBuilder().setClosed(closed);
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
/**
* Compact a region on the region server.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority = HConstants.ADMIN_QOS)
public CompactRegionResponse compactRegion(final RpcController controller,
final CompactRegionRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
// Quota support is enabled, the requesting user is not system/super user
// and a quota policy is enforced that disables compactions.
if (QuotaUtil.isQuotaEnabled(getConfiguration()) &&
!Superusers.isSuperUser(RpcServer.getRequestUser().orElse(null)) &&
this.regionServer.getRegionServerSpaceQuotaManager()
.areCompactionsDisabled(region.getTableDescriptor().getTableName())) {
throw new DoNotRetryIOException(
"Compactions on this region are " + "disabled due to a space quota violation.");
}
region.startRegionOperation(Operation.COMPACT_REGION);
LOG.info("Compacting " + region.getRegionInfo().getRegionNameAsString());
boolean major = request.hasMajor() && request.getMajor();
if (request.hasFamily()) {
byte[] family = request.getFamily().toByteArray();
String log = "User-triggered " + (major ? "major " : "") + "compaction for region " +
region.getRegionInfo().getRegionNameAsString() + " and family " +
Bytes.toString(family);
LOG.trace(log);
region.requestCompaction(family, log, Store.PRIORITY_USER, major,
CompactionLifeCycleTracker.DUMMY);
} else {
String log = "User-triggered " + (major ? "major " : "") + "compaction for region " +
region.getRegionInfo().getRegionNameAsString();
LOG.trace(log);
region.requestCompaction(log, Store.PRIORITY_USER, major, CompactionLifeCycleTracker.DUMMY);
}
return CompactRegionResponse.newBuilder().build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
@Override
public CompactionSwitchResponse compactionSwitch(RpcController controller,
CompactionSwitchRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
boolean prevState = regionServer.compactSplitThread.isCompactionsEnabled();
CompactionSwitchResponse response =
CompactionSwitchResponse.newBuilder().setPrevState(prevState).build();
if (prevState == request.getEnabled()) {
// passed in requested state is same as current state. No action required
return response;
}
regionServer.compactSplitThread.switchCompaction(request.getEnabled());
return response;
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
/**
* Flush a region on the region server.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public FlushRegionResponse flushRegion(final RpcController controller,
final FlushRegionRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
LOG.info("Flushing " + region.getRegionInfo().getRegionNameAsString());
boolean shouldFlush = true;
if (request.hasIfOlderThanTs()) {
shouldFlush = region.getEarliestFlushTimeForAllStores() < request.getIfOlderThanTs();
}
FlushRegionResponse.Builder builder = FlushRegionResponse.newBuilder();
if (shouldFlush) {
boolean writeFlushWalMarker = request.hasWriteFlushWalMarker() ?
request.getWriteFlushWalMarker() : false;
// Go behind the curtain so we can manage writing of the flush WAL marker
HRegion.FlushResultImpl flushResult = null;
if (request.hasFamily()) {
List families = new ArrayList();
families.add(request.getFamily().toByteArray());
flushResult =
region.flushcache(families, writeFlushWalMarker, FlushLifeCycleTracker.DUMMY);
} else {
flushResult = region.flushcache(true, writeFlushWalMarker, FlushLifeCycleTracker.DUMMY);
}
boolean compactionNeeded = flushResult.isCompactionNeeded();
if (compactionNeeded) {
regionServer.compactSplitThread.requestSystemCompaction(region,
"Compaction through user triggered flush");
}
builder.setFlushed(flushResult.isFlushSucceeded());
builder.setWroteFlushWalMarker(flushResult.wroteFlushWalMarker);
}
builder.setLastFlushTime(region.getEarliestFlushTimeForAllStores());
return builder.build();
} catch (DroppedSnapshotException ex) {
// Cache flush can fail in a few places. If it fails in a critical
// section, we get a DroppedSnapshotException and a replay of wal
// is required. Currently the only way to do this is a restart of
// the server.
regionServer.abort("Replay of WAL required. Forcing server shutdown", ex);
throw new ServiceException(ex);
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public GetOnlineRegionResponse getOnlineRegion(final RpcController controller,
final GetOnlineRegionRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
Map onlineRegions = regionServer.getOnlineRegions();
List list = new ArrayList<>(onlineRegions.size());
for (HRegion region: onlineRegions.values()) {
list.add(region.getRegionInfo());
}
list.sort(RegionInfo.COMPARATOR);
return ResponseConverter.buildGetOnlineRegionResponse(list);
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
// Master implementation of this Admin Service differs given it is not
// able to supply detail only known to RegionServer. See note on
// MasterRpcServers#getRegionInfo.
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public GetRegionInfoResponse getRegionInfo(final RpcController controller,
final GetRegionInfoRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
RegionInfo info = region.getRegionInfo();
byte[] bestSplitRow;
if (request.hasBestSplitRow() && request.getBestSplitRow()) {
bestSplitRow = region.checkSplit(true).orElse(null);
// when all table data are in memstore, bestSplitRow = null
// try to flush region first
if (bestSplitRow == null) {
region.flush(true);
bestSplitRow = region.checkSplit(true).orElse(null);
}
} else {
bestSplitRow = null;
}
GetRegionInfoResponse.Builder builder = GetRegionInfoResponse.newBuilder();
builder.setRegionInfo(ProtobufUtil.toRegionInfo(info));
if (request.hasCompactionState() && request.getCompactionState()) {
builder.setCompactionState(ProtobufUtil.createCompactionState(region.getCompactionState()));
}
builder.setSplittable(region.isSplittable());
builder.setMergeable(region.isMergeable());
if (request.hasBestSplitRow() && request.getBestSplitRow() && bestSplitRow != null) {
builder.setBestSplitRow(UnsafeByteOperations.unsafeWrap(bestSplitRow));
}
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public GetRegionLoadResponse getRegionLoad(RpcController controller,
GetRegionLoadRequest request) throws ServiceException {
List regions;
if (request.hasTableName()) {
TableName tableName = ProtobufUtil.toTableName(request.getTableName());
regions = regionServer.getRegions(tableName);
} else {
regions = regionServer.getRegions();
}
List rLoads = new ArrayList<>(regions.size());
RegionLoad.Builder regionLoadBuilder = ClusterStatusProtos.RegionLoad.newBuilder();
RegionSpecifier.Builder regionSpecifier = RegionSpecifier.newBuilder();
try {
for (HRegion region : regions) {
rLoads.add(regionServer.createRegionLoad(region, regionLoadBuilder, regionSpecifier));
}
} catch (IOException e) {
throw new ServiceException(e);
}
GetRegionLoadResponse.Builder builder = GetRegionLoadResponse.newBuilder();
builder.addAllRegionLoads(rLoads);
return builder.build();
}
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public ClearCompactionQueuesResponse clearCompactionQueues(RpcController controller,
ClearCompactionQueuesRequest request) throws ServiceException {
LOG.debug("Client=" + RpcServer.getRequestUserName().orElse(null) + "/"
+ RpcServer.getRemoteAddress().orElse(null) + " clear compactions queue");
ClearCompactionQueuesResponse.Builder respBuilder = ClearCompactionQueuesResponse.newBuilder();
requestCount.increment();
if (clearCompactionQueues.compareAndSet(false,true)) {
try {
checkOpen();
regionServer.getRegionServerCoprocessorHost().preClearCompactionQueues();
for (String queueName : request.getQueueNameList()) {
LOG.debug("clear " + queueName + " compaction queue");
switch (queueName) {
case "long":
regionServer.compactSplitThread.clearLongCompactionsQueue();
break;
case "short":
regionServer.compactSplitThread.clearShortCompactionsQueue();
break;
default:
LOG.warn("Unknown queue name " + queueName);
throw new IOException("Unknown queue name " + queueName);
}
}
regionServer.getRegionServerCoprocessorHost().postClearCompactionQueues();
} catch (IOException ie) {
throw new ServiceException(ie);
} finally {
clearCompactionQueues.set(false);
}
} else {
LOG.warn("Clear compactions queue is executing by other admin.");
}
return respBuilder.build();
}
/**
* Get some information of the region server.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public GetServerInfoResponse getServerInfo(final RpcController controller,
final GetServerInfoRequest request) throws ServiceException {
try {
checkOpen();
} catch (IOException ie) {
throw new ServiceException(ie);
}
requestCount.increment();
int infoPort = regionServer.infoServer != null ? regionServer.infoServer.getPort() : -1;
return ResponseConverter.buildGetServerInfoResponse(regionServer.serverName, infoPort);
}
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public GetStoreFileResponse getStoreFile(final RpcController controller,
final GetStoreFileRequest request) throws ServiceException {
try {
checkOpen();
HRegion region = getRegion(request.getRegion());
requestCount.increment();
Set columnFamilies;
if (request.getFamilyCount() == 0) {
columnFamilies = region.getTableDescriptor().getColumnFamilyNames();
} else {
columnFamilies = new TreeSet<>(Bytes.BYTES_RAWCOMPARATOR);
for (ByteString cf: request.getFamilyList()) {
columnFamilies.add(cf.toByteArray());
}
}
int nCF = columnFamilies.size();
List fileList = region.getStoreFileList(
columnFamilies.toArray(new byte[nCF][]));
GetStoreFileResponse.Builder builder = GetStoreFileResponse.newBuilder();
builder.addAllStoreFile(fileList);
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
private void throwOnWrongStartCode(OpenRegionRequest request) throws ServiceException {
if (!request.hasServerStartCode()) {
LOG.warn("OpenRegionRequest for {} does not have a start code", request.getOpenInfoList());
return;
}
throwOnWrongStartCode(request.getServerStartCode());
}
private void throwOnWrongStartCode(CloseRegionRequest request) throws ServiceException {
if (!request.hasServerStartCode()) {
LOG.warn("CloseRegionRequest for {} does not have a start code", request.getRegion());
return;
}
throwOnWrongStartCode(request.getServerStartCode());
}
private void throwOnWrongStartCode(long serverStartCode) throws ServiceException {
// check that we are the same server that this RPC is intended for.
if (regionServer.serverName.getStartcode() != serverStartCode) {
throw new ServiceException(new DoNotRetryIOException(
"This RPC was intended for a " + "different server with startCode: " + serverStartCode +
", this server is: " + regionServer.serverName));
}
}
private void throwOnWrongStartCode(ExecuteProceduresRequest req) throws ServiceException {
if (req.getOpenRegionCount() > 0) {
for (OpenRegionRequest openReq : req.getOpenRegionList()) {
throwOnWrongStartCode(openReq);
}
}
if (req.getCloseRegionCount() > 0) {
for (CloseRegionRequest closeReq : req.getCloseRegionList()) {
throwOnWrongStartCode(closeReq);
}
}
}
/**
* Open asynchronously a region or a set of regions on the region server.
*
* The opening is coordinated by ZooKeeper, and this method requires the znode to be created
* before being called. As a consequence, this method should be called only from the master.
*
* Different manages states for the region are:
*
* - region not opened: the region opening will start asynchronously.
* - a close is already in progress: this is considered as an error.
* - an open is already in progress: this new open request will be ignored. This is important
* because the Master can do multiple requests if it crashes.
* - the region is already opened: this new open request will be ignored.
*
*
* Bulk assign: If there are more than 1 region to open, it will be considered as a bulk assign.
* For a single region opening, errors are sent through a ServiceException. For bulk assign,
* errors are put in the response as FAILED_OPENING.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public OpenRegionResponse openRegion(final RpcController controller,
final OpenRegionRequest request) throws ServiceException {
requestCount.increment();
throwOnWrongStartCode(request);
OpenRegionResponse.Builder builder = OpenRegionResponse.newBuilder();
final int regionCount = request.getOpenInfoCount();
final Map htds = new HashMap<>(regionCount);
final boolean isBulkAssign = regionCount > 1;
try {
checkOpen();
} catch (IOException ie) {
TableName tableName = null;
if (regionCount == 1) {
org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionInfo ri = request.getOpenInfo(0).getRegion();
if (ri != null) {
tableName = ProtobufUtil.toTableName(ri.getTableName());
}
}
if (!TableName.META_TABLE_NAME.equals(tableName)) {
throw new ServiceException(ie);
}
// We are assigning meta, wait a little for regionserver to finish initialization.
int timeout = regionServer.getConfiguration().getInt(HConstants.HBASE_RPC_TIMEOUT_KEY,
HConstants.DEFAULT_HBASE_RPC_TIMEOUT) >> 2; // Quarter of RPC timeout
long endTime = System.currentTimeMillis() + timeout;
synchronized (regionServer.online) {
try {
while (System.currentTimeMillis() <= endTime
&& !regionServer.isStopped() && !regionServer.isOnline()) {
regionServer.online.wait(regionServer.msgInterval);
}
checkOpen();
} catch (InterruptedException t) {
Thread.currentThread().interrupt();
throw new ServiceException(t);
} catch (IOException e) {
throw new ServiceException(e);
}
}
}
long masterSystemTime = request.hasMasterSystemTime() ? request.getMasterSystemTime() : -1;
for (RegionOpenInfo regionOpenInfo : request.getOpenInfoList()) {
final RegionInfo region = ProtobufUtil.toRegionInfo(regionOpenInfo.getRegion());
TableDescriptor htd;
try {
String encodedName = region.getEncodedName();
byte[] encodedNameBytes = region.getEncodedNameAsBytes();
final HRegion onlineRegion = regionServer.getRegion(encodedName);
if (onlineRegion != null) {
// The region is already online. This should not happen any more.
String error = "Received OPEN for the region:"
+ region.getRegionNameAsString() + ", which is already online";
LOG.warn(error);
//regionServer.abort(error);
//throw new IOException(error);
builder.addOpeningState(RegionOpeningState.OPENED);
continue;
}
LOG.info("Open " + region.getRegionNameAsString());
final Boolean previous = regionServer.getRegionsInTransitionInRS().putIfAbsent(
encodedNameBytes, Boolean.TRUE);
if (Boolean.FALSE.equals(previous)) {
if (regionServer.getRegion(encodedName) != null) {
// There is a close in progress. This should not happen any more.
String error = "Received OPEN for the region:"
+ region.getRegionNameAsString() + ", which we are already trying to CLOSE";
regionServer.abort(error);
throw new IOException(error);
}
regionServer.getRegionsInTransitionInRS().put(encodedNameBytes, Boolean.TRUE);
}
if (Boolean.TRUE.equals(previous)) {
// An open is in progress. This is supported, but let's log this.
LOG.info("Receiving OPEN for the region:" +
region.getRegionNameAsString() + ", which we are already trying to OPEN"
+ " - ignoring this new request for this region.");
}
// We are opening this region. If it moves back and forth for whatever reason, we don't
// want to keep returning the stale moved record while we are opening/if we close again.
regionServer.removeFromMovedRegions(region.getEncodedName());
if (previous == null || !previous.booleanValue()) {
htd = htds.get(region.getTable());
if (htd == null) {
htd = regionServer.tableDescriptors.get(region.getTable());
htds.put(region.getTable(), htd);
}
if (htd == null) {
throw new IOException("Missing table descriptor for " + region.getEncodedName());
}
// If there is no action in progress, we can submit a specific handler.
// Need to pass the expected version in the constructor.
if (regionServer.executorService == null) {
LOG.info("No executor executorService; skipping open request");
} else {
if (region.isMetaRegion()) {
regionServer.executorService.submit(new OpenMetaHandler(
regionServer, regionServer, region, htd, masterSystemTime));
} else {
if (regionOpenInfo.getFavoredNodesCount() > 0) {
regionServer.updateRegionFavoredNodesMapping(region.getEncodedName(),
regionOpenInfo.getFavoredNodesList());
}
if (htd.getPriority() >= HConstants.ADMIN_QOS || region.getTable().isSystemTable()) {
regionServer.executorService.submit(new OpenPriorityRegionHandler(
regionServer, regionServer, region, htd, masterSystemTime));
} else {
regionServer.executorService.submit(new OpenRegionHandler(
regionServer, regionServer, region, htd, masterSystemTime));
}
}
}
}
builder.addOpeningState(RegionOpeningState.OPENED);
} catch (IOException ie) {
LOG.warn("Failed opening region " + region.getRegionNameAsString(), ie);
if (isBulkAssign) {
builder.addOpeningState(RegionOpeningState.FAILED_OPENING);
} else {
throw new ServiceException(ie);
}
}
}
return builder.build();
}
/**
* Warmup a region on this server.
* This method should only be called by Master. It synchronously opens the region and
* closes the region bringing the most important pages in cache.
*/
@Override
public WarmupRegionResponse warmupRegion(final RpcController controller,
final WarmupRegionRequest request) throws ServiceException {
final RegionInfo region = ProtobufUtil.toRegionInfo(request.getRegionInfo());
WarmupRegionResponse response = WarmupRegionResponse.getDefaultInstance();
try {
checkOpen();
String encodedName = region.getEncodedName();
byte[] encodedNameBytes = region.getEncodedNameAsBytes();
final HRegion onlineRegion = regionServer.getRegion(encodedName);
if (onlineRegion != null) {
LOG.info("{} is online; skipping warmup", region);
return response;
}
TableDescriptor htd = regionServer.tableDescriptors.get(region.getTable());
if (regionServer.getRegionsInTransitionInRS().containsKey(encodedNameBytes)) {
LOG.info("{} is in transition; skipping warmup", region);
return response;
}
LOG.info("Warmup {}", region.getRegionNameAsString());
HRegion.warmupHRegion(region, htd, regionServer.getWAL(region),
regionServer.getConfiguration(), regionServer, null);
} catch (IOException ie) {
LOG.error("Failed warmup of {}", region.getRegionNameAsString(), ie);
throw new ServiceException(ie);
}
return response;
}
/**
* Replay the given changes when distributedLogReplay WAL edits from a failed RS. The guarantee is
* that the given mutations will be durable on the receiving RS if this method returns without any
* exception.
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority = HConstants.REPLAY_QOS)
public ReplicateWALEntryResponse replay(final RpcController controller,
final ReplicateWALEntryRequest request) throws ServiceException {
long before = EnvironmentEdgeManager.currentTime();
CellScanner cells = ((HBaseRpcController) controller).cellScanner();
try {
checkOpen();
List entries = request.getEntryList();
if (entries == null || entries.isEmpty()) {
// empty input
return ReplicateWALEntryResponse.newBuilder().build();
}
ByteString regionName = entries.get(0).getKey().getEncodedRegionName();
HRegion region = regionServer.getRegionByEncodedName(regionName.toStringUtf8());
RegionCoprocessorHost coprocessorHost =
ServerRegionReplicaUtil.isDefaultReplica(region.getRegionInfo())
? region.getCoprocessorHost()
: null; // do not invoke coprocessors if this is a secondary region replica
List> walEntries = new ArrayList<>();
// Skip adding the edits to WAL if this is a secondary region replica
boolean isPrimary = RegionReplicaUtil.isDefaultReplica(region.getRegionInfo());
Durability durability = isPrimary ? Durability.USE_DEFAULT : Durability.SKIP_WAL;
for (WALEntry entry : entries) {
if (!regionName.equals(entry.getKey().getEncodedRegionName())) {
throw new NotServingRegionException("Replay request contains entries from multiple " +
"regions. First region:" + regionName.toStringUtf8() + " , other region:"
+ entry.getKey().getEncodedRegionName());
}
if (regionServer.nonceManager != null && isPrimary) {
long nonceGroup = entry.getKey().hasNonceGroup()
? entry.getKey().getNonceGroup() : HConstants.NO_NONCE;
long nonce = entry.getKey().hasNonce() ? entry.getKey().getNonce() : HConstants.NO_NONCE;
regionServer.nonceManager.reportOperationFromWal(
nonceGroup,
nonce,
entry.getKey().getWriteTime());
}
Pair walEntry = (coprocessorHost == null) ? null : new Pair<>();
List edits = WALSplitUtil.getMutationsFromWALEntry(entry,
cells, walEntry, durability);
if (coprocessorHost != null) {
// Start coprocessor replay here. The coprocessor is for each WALEdit instead of a
// KeyValue.
if (coprocessorHost.preWALRestore(region.getRegionInfo(), walEntry.getFirst(),
walEntry.getSecond())) {
// if bypass this log entry, ignore it ...
continue;
}
walEntries.add(walEntry);
}
if(edits!=null && !edits.isEmpty()) {
// HBASE-17924
// sort to improve lock efficiency
Collections.sort(edits, (v1, v2) -> Row.COMPARATOR.compare(v1.mutation, v2.mutation));
long replaySeqId = (entry.getKey().hasOrigSequenceNumber()) ?
entry.getKey().getOrigSequenceNumber() : entry.getKey().getLogSequenceNumber();
OperationStatus[] result = doReplayBatchOp(region, edits, replaySeqId);
// check if it's a partial success
for (int i = 0; result != null && i < result.length; i++) {
if (result[i] != OperationStatus.SUCCESS) {
throw new IOException(result[i].getExceptionMsg());
}
}
}
}
//sync wal at the end because ASYNC_WAL is used above
WAL wal = region.getWAL();
if (wal != null) {
wal.sync();
}
if (coprocessorHost != null) {
for (Pair entry : walEntries) {
coprocessorHost.postWALRestore(region.getRegionInfo(), entry.getFirst(),
entry.getSecond());
}
}
return ReplicateWALEntryResponse.newBuilder().build();
} catch (IOException ie) {
throw new ServiceException(ie);
} finally {
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
metricsRegionServer.updateReplay(EnvironmentEdgeManager.currentTime() - before);
}
}
}
/**
* Replicate WAL entries on the region server.
*
* @param controller the RPC controller
* @param request the request
*/
@Override
@QosPriority(priority=HConstants.REPLICATION_QOS)
public ReplicateWALEntryResponse replicateWALEntry(final RpcController controller,
final ReplicateWALEntryRequest request) throws ServiceException {
try {
checkOpen();
if (regionServer.getReplicationSinkService() != null) {
requestCount.increment();
List entries = request.getEntryList();
CellScanner cellScanner = ((HBaseRpcController)controller).cellScanner();
regionServer.getRegionServerCoprocessorHost().preReplicateLogEntries();
regionServer.getReplicationSinkService().replicateLogEntries(entries, cellScanner,
request.getReplicationClusterId(), request.getSourceBaseNamespaceDirPath(),
request.getSourceHFileArchiveDirPath());
regionServer.getRegionServerCoprocessorHost().postReplicateLogEntries();
return ReplicateWALEntryResponse.newBuilder().build();
} else {
throw new ServiceException("Replication services are not initialized yet");
}
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
/**
* Roll the WAL writer of the region server.
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
public RollWALWriterResponse rollWALWriter(final RpcController controller,
final RollWALWriterRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
regionServer.getRegionServerCoprocessorHost().preRollWALWriterRequest();
regionServer.getWalRoller().requestRollAll();
regionServer.getRegionServerCoprocessorHost().postRollWALWriterRequest();
RollWALWriterResponse.Builder builder = RollWALWriterResponse.newBuilder();
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
/**
* Stop the region server.
*
* @param controller the RPC controller
* @param request the request
* @throws ServiceException
*/
@Override
@QosPriority(priority=HConstants.ADMIN_QOS)
public StopServerResponse stopServer(final RpcController controller,
final StopServerRequest request) throws ServiceException {
rpcPreCheck("stopServer");
requestCount.increment();
String reason = request.getReason();
regionServer.stop(reason);
return StopServerResponse.newBuilder().build();
}
@Override
public UpdateFavoredNodesResponse updateFavoredNodes(RpcController controller,
UpdateFavoredNodesRequest request) throws ServiceException {
rpcPreCheck("updateFavoredNodes");
List openInfoList = request.getUpdateInfoList();
UpdateFavoredNodesResponse.Builder respBuilder = UpdateFavoredNodesResponse.newBuilder();
for (UpdateFavoredNodesRequest.RegionUpdateInfo regionUpdateInfo : openInfoList) {
RegionInfo hri = ProtobufUtil.toRegionInfo(regionUpdateInfo.getRegion());
if (regionUpdateInfo.getFavoredNodesCount() > 0) {
regionServer.updateRegionFavoredNodesMapping(hri.getEncodedName(),
regionUpdateInfo.getFavoredNodesList());
}
}
respBuilder.setResponse(openInfoList.size());
return respBuilder.build();
}
/**
* Atomically bulk load several HFiles into an open region
* @return true if successful, false is failed but recoverably (no action)
* @throws ServiceException if failed unrecoverably
*/
@Override
public BulkLoadHFileResponse bulkLoadHFile(final RpcController controller,
final BulkLoadHFileRequest request) throws ServiceException {
long start = EnvironmentEdgeManager.currentTime();
List clusterIds = new ArrayList<>(request.getClusterIdsList());
if(clusterIds.contains(this.regionServer.clusterId)){
return BulkLoadHFileResponse.newBuilder().setLoaded(true).build();
} else {
clusterIds.add(this.regionServer.clusterId);
}
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
Map> map = null;
final boolean spaceQuotaEnabled = QuotaUtil.isQuotaEnabled(getConfiguration());
long sizeToBeLoaded = -1;
// Check to see if this bulk load would exceed the space quota for this table
if (spaceQuotaEnabled) {
ActivePolicyEnforcement activeSpaceQuotas = getSpaceQuotaManager().getActiveEnforcements();
SpaceViolationPolicyEnforcement enforcement = activeSpaceQuotas.getPolicyEnforcement(
region);
if (enforcement != null) {
// Bulk loads must still be atomic. We must enact all or none.
List filePaths = new ArrayList<>(request.getFamilyPathCount());
for (FamilyPath familyPath : request.getFamilyPathList()) {
filePaths.add(familyPath.getPath());
}
// Check if the batch of files exceeds the current quota
sizeToBeLoaded = enforcement.computeBulkLoadSize(regionServer.getFileSystem(), filePaths);
}
}
List> familyPaths = new ArrayList<>(request.getFamilyPathCount());
for (FamilyPath familyPath : request.getFamilyPathList()) {
familyPaths.add(new Pair<>(familyPath.getFamily().toByteArray(), familyPath.getPath()));
}
if (!request.hasBulkToken()) {
if (region.getCoprocessorHost() != null) {
region.getCoprocessorHost().preBulkLoadHFile(familyPaths);
}
try {
map = region.bulkLoadHFiles(familyPaths, request.getAssignSeqNum(), null,
request.getCopyFile(), clusterIds, request.getReplicate());
} finally {
if (region.getCoprocessorHost() != null) {
region.getCoprocessorHost().postBulkLoadHFile(familyPaths, map);
}
}
} else {
// secure bulk load
map = regionServer.getSecureBulkLoadManager().secureBulkLoadHFiles(region, request, clusterIds);
}
BulkLoadHFileResponse.Builder builder = BulkLoadHFileResponse.newBuilder();
builder.setLoaded(map != null);
if (map != null) {
// Treat any negative size as a flag to "ignore" updating the region size as that is
// not possible to occur in real life (cannot bulk load a file with negative size)
if (spaceQuotaEnabled && sizeToBeLoaded > 0) {
if (LOG.isTraceEnabled()) {
LOG.trace("Incrementing space use of " + region.getRegionInfo() + " by "
+ sizeToBeLoaded + " bytes");
}
// Inform space quotas of the new files for this region
getSpaceQuotaManager().getRegionSizeStore().incrementRegionSize(
region.getRegionInfo(), sizeToBeLoaded);
}
}
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
} finally {
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
metricsRegionServer.updateBulkLoad(EnvironmentEdgeManager.currentTime() - start);
}
}
}
@Override
public PrepareBulkLoadResponse prepareBulkLoad(RpcController controller,
PrepareBulkLoadRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
String bulkToken = regionServer.getSecureBulkLoadManager().prepareBulkLoad(region, request);
PrepareBulkLoadResponse.Builder builder = PrepareBulkLoadResponse.newBuilder();
builder.setBulkToken(bulkToken);
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
@Override
public CleanupBulkLoadResponse cleanupBulkLoad(RpcController controller,
CleanupBulkLoadRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
regionServer.getSecureBulkLoadManager().cleanupBulkLoad(region, request);
return CleanupBulkLoadResponse.newBuilder().build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
@Override
public CoprocessorServiceResponse execService(final RpcController controller,
final CoprocessorServiceRequest request) throws ServiceException {
try {
checkOpen();
requestCount.increment();
HRegion region = getRegion(request.getRegion());
com.google.protobuf.Message result = execServiceOnRegion(region, request.getCall());
CoprocessorServiceResponse.Builder builder = CoprocessorServiceResponse.newBuilder();
builder.setRegion(RequestConverter.buildRegionSpecifier(
RegionSpecifierType.REGION_NAME, region.getRegionInfo().getRegionName()));
// TODO: COPIES!!!!!!
builder.setValue(builder.getValueBuilder().setName(result.getClass().getName()).
setValue(org.apache.hbase.thirdparty.com.google.protobuf.ByteString.
copyFrom(result.toByteArray())));
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
}
}
private com.google.protobuf.Message execServiceOnRegion(HRegion region,
final ClientProtos.CoprocessorServiceCall serviceCall) throws IOException {
// ignore the passed in controller (from the serialized call)
ServerRpcController execController = new ServerRpcController();
return region.execService(execController, serviceCall);
}
/**
* Get data from a table.
*
* @param controller the RPC controller
* @param request the get request
* @throws ServiceException
*/
@Override
public GetResponse get(final RpcController controller,
final GetRequest request) throws ServiceException {
long before = EnvironmentEdgeManager.currentTime();
OperationQuota quota = null;
HRegion region = null;
try {
checkOpen();
requestCount.increment();
rpcGetRequestCount.increment();
region = getRegion(request.getRegion());
GetResponse.Builder builder = GetResponse.newBuilder();
ClientProtos.Get get = request.getGet();
// An asynchbase client, https://github.com/OpenTSDB/asynchbase, starts by trying to do
// a get closest before. Throwing the UnknownProtocolException signals it that it needs
// to switch and do hbase2 protocol (HBase servers do not tell clients what versions
// they are; its a problem for non-native clients like asynchbase. HBASE-20225.
if (get.hasClosestRowBefore() && get.getClosestRowBefore()) {
throw new UnknownProtocolException("Is this a pre-hbase-1.0.0 or asynchbase client? " +
"Client is invoking getClosestRowBefore removed in hbase-2.0.0 replaced by " +
"reverse Scan.");
}
Boolean existence = null;
Result r = null;
RpcCallContext context = RpcServer.getCurrentCall().orElse(null);
quota = getRpcQuotaManager().checkQuota(region, OperationQuota.OperationType.GET);
Get clientGet = ProtobufUtil.toGet(get);
if (get.getExistenceOnly() && region.getCoprocessorHost() != null) {
existence = region.getCoprocessorHost().preExists(clientGet);
}
if (existence == null) {
if (context != null) {
r = get(clientGet, (region), null, context);
} else {
// for test purpose
r = region.get(clientGet);
}
if (get.getExistenceOnly()) {
boolean exists = r.getExists();
if (region.getCoprocessorHost() != null) {
exists = region.getCoprocessorHost().postExists(clientGet, exists);
}
existence = exists;
}
}
if (existence != null) {
ClientProtos.Result pbr =
ProtobufUtil.toResult(existence, region.getRegionInfo().getReplicaId() != 0);
builder.setResult(pbr);
} else if (r != null) {
ClientProtos.Result pbr;
if (isClientCellBlockSupport(context) && controller instanceof HBaseRpcController
&& VersionInfoUtil.hasMinimumVersion(context.getClientVersionInfo(), 1, 3)) {
pbr = ProtobufUtil.toResultNoData(r);
((HBaseRpcController) controller).setCellScanner(CellUtil.createCellScanner(r
.rawCells()));
addSize(context, r, null);
} else {
pbr = ProtobufUtil.toResult(r);
}
builder.setResult(pbr);
}
//r.cells is null when an table.exists(get) call
if (r != null && r.rawCells() != null) {
quota.addGetResult(r);
}
return builder.build();
} catch (IOException ie) {
throw new ServiceException(ie);
} finally {
final MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
TableDescriptor td = region != null? region.getTableDescriptor(): null;
if (td != null) {
metricsRegionServer.updateGet(
td.getTableName(), EnvironmentEdgeManager.currentTime() - before);
}
}
if (quota != null) {
quota.close();
}
}
}
private Result get(Get get, HRegion region, RegionScannersCloseCallBack closeCallBack,
RpcCallContext context) throws IOException {
region.prepareGet(get);
boolean stale = region.getRegionInfo().getReplicaId() != 0;
// This method is almost the same as HRegion#get.
List results = new ArrayList<>();
long before = EnvironmentEdgeManager.currentTime();
// pre-get CP hook
if (region.getCoprocessorHost() != null) {
if (region.getCoprocessorHost().preGet(get, results)) {
region.metricsUpdateForGet(results, before);
return Result
.create(results, get.isCheckExistenceOnly() ? !results.isEmpty() : null, stale);
}
}
Scan scan = new Scan(get);
if (scan.getLoadColumnFamiliesOnDemandValue() == null) {
scan.setLoadColumnFamiliesOnDemand(region.isLoadingCfsOnDemandDefault());
}
RegionScannerImpl scanner = null;
try {
scanner = region.getScanner(scan);
scanner.next(results);
} finally {
if (scanner != null) {
if (closeCallBack == null) {
// If there is a context then the scanner can be added to the current
// RpcCallContext. The rpc callback will take care of closing the
// scanner, for eg in case
// of get()
context.setCallBack(scanner);
} else {
// The call is from multi() where the results from the get() are
// aggregated and then send out to the
// rpc. The rpccall back will close all such scanners created as part
// of multi().
closeCallBack.addScanner(scanner);
}
}
}
// post-get CP hook
if (region.getCoprocessorHost() != null) {
region.getCoprocessorHost().postGet(get, results);
}
region.metricsUpdateForGet(results, before);
return Result.create(results, get.isCheckExistenceOnly() ? !results.isEmpty() : null, stale);
}
private void checkBatchSizeAndLogLargeSize(MultiRequest request) throws ServiceException {
int sum = 0;
String firstRegionName = null;
for (RegionAction regionAction : request.getRegionActionList()) {
if (sum == 0) {
firstRegionName = Bytes.toStringBinary(regionAction.getRegion().getValue().toByteArray());
}
sum += regionAction.getActionCount();
}
if (sum > rowSizeWarnThreshold) {
LOG.warn("Large batch operation detected (greater than " + rowSizeWarnThreshold +
") (HBASE-18023)." + " Requested Number of Rows: " + sum + " Client: " +
RpcServer.getRequestUserName().orElse(null) + "/" +
RpcServer.getRemoteAddress().orElse(null) + " first region in multi=" + firstRegionName);
if (rejectRowsWithSizeOverThreshold) {
throw new ServiceException(
"Rejecting large batch operation for current batch with firstRegionName: " +
firstRegionName + " , Requested Number of Rows: " + sum + " , Size Threshold: " +
rowSizeWarnThreshold);
}
}
}
private void failRegionAction(MultiResponse.Builder responseBuilder,
RegionActionResult.Builder regionActionResultBuilder, RegionAction regionAction,
CellScanner cellScanner, Throwable error) {
rpcServer.getMetrics().exception(error);
regionActionResultBuilder.setException(ResponseConverter.buildException(error));
responseBuilder.addRegionActionResult(regionActionResultBuilder.build());
// All Mutations in this RegionAction not executed as we can not see the Region online here
// in this RS. Will be retried from Client. Skipping all the Cells in CellScanner
// corresponding to these Mutations.
if (cellScanner != null) {
skipCellsForMutations(regionAction.getActionList(), cellScanner);
}
}
/**
* Execute multiple actions on a table: get, mutate, and/or execCoprocessor
*
* @param rpcc the RPC controller
* @param request the multi request
* @throws ServiceException
*/
@Override
public MultiResponse multi(final RpcController rpcc, final MultiRequest request)
throws ServiceException {
try {
checkOpen();
} catch (IOException ie) {
throw new ServiceException(ie);
}
checkBatchSizeAndLogLargeSize(request);
// rpc controller is how we bring in data via the back door; it is unprotobuf'ed data.
// It is also the conduit via which we pass back data.
HBaseRpcController controller = (HBaseRpcController)rpcc;
CellScanner cellScanner = controller != null ? controller.cellScanner(): null;
if (controller != null) {
controller.setCellScanner(null);
}
long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE;
MultiResponse.Builder responseBuilder = MultiResponse.newBuilder();
RegionActionResult.Builder regionActionResultBuilder = RegionActionResult.newBuilder();
this.rpcMultiRequestCount.increment();
this.requestCount.increment();
ActivePolicyEnforcement spaceQuotaEnforcement = getSpaceQuotaManager().getActiveEnforcements();
// We no longer use MultiRequest#condition. Instead, we use RegionAction#condition. The
// following logic is for backward compatibility as old clients still use
// MultiRequest#condition in case of checkAndMutate with RowMutations.
if (request.hasCondition()) {
if (request.getRegionActionList().isEmpty()) {
// If the region action list is empty, do nothing.
responseBuilder.setProcessed(true);
return responseBuilder.build();
}
RegionAction regionAction = request.getRegionAction(0);
// When request.hasCondition() is true, regionAction.getAtomic() should be always true. So
// we can assume regionAction.getAtomic() is true here.
assert regionAction.getAtomic();
OperationQuota quota;
HRegion region;
RegionSpecifier regionSpecifier = regionAction.getRegion();
try {
region = getRegion(regionSpecifier);
quota = getRpcQuotaManager().checkQuota(region, regionAction.getActionList());
} catch (IOException e) {
failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, e);
return responseBuilder.build();
}
try {
CheckAndMutateResult result = checkAndMutate(region, regionAction.getActionList(),
cellScanner, request.getCondition(), spaceQuotaEnforcement);
responseBuilder.setProcessed(result.isSuccess());
ClientProtos.ResultOrException.Builder resultOrExceptionOrBuilder =
ClientProtos.ResultOrException.newBuilder();
for (int i = 0; i < regionAction.getActionCount(); i++) {
// To unify the response format with doNonAtomicRegionMutation and read through
// client's AsyncProcess we have to add an empty result instance per operation
resultOrExceptionOrBuilder.clear();
resultOrExceptionOrBuilder.setIndex(i);
regionActionResultBuilder.addResultOrException(resultOrExceptionOrBuilder.build());
}
} catch (IOException e) {
rpcServer.getMetrics().exception(e);
// As it's an atomic operation with a condition, we may expect it's a global failure.
regionActionResultBuilder.setException(ResponseConverter.buildException(e));
} finally {
quota.close();
}
responseBuilder.addRegionActionResult(regionActionResultBuilder.build());
ClientProtos.RegionLoadStats regionLoadStats = region.getLoadStatistics();
if (regionLoadStats != null) {
responseBuilder.setRegionStatistics(MultiRegionLoadStats.newBuilder()
.addRegion(regionSpecifier).addStat(regionLoadStats).build());
}
return responseBuilder.build();
}
// this will contain all the cells that we need to return. It's created later, if needed.
List cellsToReturn = null;
RegionScannersCloseCallBack closeCallBack = null;
RpcCallContext context = RpcServer.getCurrentCall().orElse(null);
Map regionStats = new HashMap<>(request
.getRegionActionCount());
for (RegionAction regionAction : request.getRegionActionList()) {
OperationQuota quota;
HRegion region;
RegionSpecifier regionSpecifier = regionAction.getRegion();
regionActionResultBuilder.clear();
try {
region = getRegion(regionSpecifier);
quota = getRpcQuotaManager().checkQuota(region, regionAction.getActionList());
} catch (IOException e) {
failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, e);
continue; // For this region it's a failure.
}
try {
if (regionAction.hasCondition()) {
try {
ClientProtos.ResultOrException.Builder resultOrExceptionOrBuilder =
ClientProtos.ResultOrException.newBuilder();
if (regionAction.getActionCount() == 1) {
CheckAndMutateResult result = checkAndMutate(region, quota,
regionAction.getAction(0).getMutation(), cellScanner,
regionAction.getCondition(), spaceQuotaEnforcement);
regionActionResultBuilder.setProcessed(result.isSuccess());
resultOrExceptionOrBuilder.setIndex(0);
if (result.getResult() != null) {
resultOrExceptionOrBuilder.setResult(ProtobufUtil.toResult(result.getResult()));
}
regionActionResultBuilder.addResultOrException(resultOrExceptionOrBuilder.build());
} else {
CheckAndMutateResult result = checkAndMutate(region, regionAction.getActionList(),
cellScanner, regionAction.getCondition(), spaceQuotaEnforcement);
regionActionResultBuilder.setProcessed(result.isSuccess());
for (int i = 0; i < regionAction.getActionCount(); i++) {
if (i == 0 && result.getResult() != null) {
// Set the result of the Increment/Append operations to the first element of the
// ResultOrException list
resultOrExceptionOrBuilder.setIndex(i);
regionActionResultBuilder.addResultOrException(resultOrExceptionOrBuilder
.setResult(ProtobufUtil.toResult(result.getResult())).build());
continue;
}
// To unify the response format with doNonAtomicRegionMutation and read through
// client's AsyncProcess we have to add an empty result instance per operation
resultOrExceptionOrBuilder.clear();
resultOrExceptionOrBuilder.setIndex(i);
regionActionResultBuilder.addResultOrException(resultOrExceptionOrBuilder.build());
}
}
} catch (IOException e) {
rpcServer.getMetrics().exception(e);
// As it's an atomic operation with a condition, we may expect it's a global failure.
regionActionResultBuilder.setException(ResponseConverter.buildException(e));
}
} else if (regionAction.hasAtomic() && regionAction.getAtomic()) {
try {
doAtomicBatchOp(regionActionResultBuilder, region, quota, regionAction.getActionList(),
cellScanner, spaceQuotaEnforcement);
regionActionResultBuilder.setProcessed(true);
// We no longer use MultiResponse#processed. Instead, we use
// RegionActionResult#processed. This is for backward compatibility for old clients.
responseBuilder.setProcessed(true);
} catch (IOException e) {
rpcServer.getMetrics().exception(e);
// As it's atomic, we may expect it's a global failure.
regionActionResultBuilder.setException(ResponseConverter.buildException(e));
}
} else {
// doNonAtomicRegionMutation manages the exception internally
if (context != null && closeCallBack == null) {
// An RpcCallBack that creates a list of scanners that needs to perform callBack
// operation on completion of multiGets.
// Set this only once
closeCallBack = new RegionScannersCloseCallBack();
context.setCallBack(closeCallBack);
}
cellsToReturn = doNonAtomicRegionMutation(region, quota, regionAction, cellScanner,
regionActionResultBuilder, cellsToReturn, nonceGroup, closeCallBack, context,
spaceQuotaEnforcement);
}
} finally {
quota.close();
}
responseBuilder.addRegionActionResult(regionActionResultBuilder.build());
ClientProtos.RegionLoadStats regionLoadStats = region.getLoadStatistics();
if(regionLoadStats != null) {
regionStats.put(regionSpecifier, regionLoadStats);
}
}
// Load the controller with the Cells to return.
if (cellsToReturn != null && !cellsToReturn.isEmpty() && controller != null) {
controller.setCellScanner(CellUtil.createCellScanner(cellsToReturn));
}
MultiRegionLoadStats.Builder builder = MultiRegionLoadStats.newBuilder();
for(Entry stat: regionStats.entrySet()){
builder.addRegion(stat.getKey());
builder.addStat(stat.getValue());
}
responseBuilder.setRegionStatistics(builder);
return responseBuilder.build();
}
private void skipCellsForMutations(List actions, CellScanner cellScanner) {
if (cellScanner == null) {
return;
}
for (Action action : actions) {
skipCellsForMutation(action, cellScanner);
}
}
private void skipCellsForMutation(Action action, CellScanner cellScanner) {
if (cellScanner == null) {
return;
}
try {
if (action.hasMutation()) {
MutationProto m = action.getMutation();
if (m.hasAssociatedCellCount()) {
for (int i = 0; i < m.getAssociatedCellCount(); i++) {
cellScanner.advance();
}
}
}
} catch (IOException e) {
// No need to handle these Individual Muatation level issue. Any way this entire RegionAction
// marked as failed as we could not see the Region here. At client side the top level
// RegionAction exception will be considered first.
LOG.error("Error while skipping Cells in CellScanner for invalid Region Mutations", e);
}
}
/**
* Mutate data in a table.
*
* @param rpcc the RPC controller
* @param request the mutate request
*/
@Override
public MutateResponse mutate(final RpcController rpcc,
final MutateRequest request) throws ServiceException {
// rpc controller is how we bring in data via the back door; it is unprotobuf'ed data.
// It is also the conduit via which we pass back data.
HBaseRpcController controller = (HBaseRpcController)rpcc;
CellScanner cellScanner = controller != null ? controller.cellScanner() : null;
OperationQuota quota = null;
RpcCallContext context = RpcServer.getCurrentCall().orElse(null);
// Clear scanner so we are not holding on to reference across call.
if (controller != null) {
controller.setCellScanner(null);
}
try {
checkOpen();
requestCount.increment();
rpcMutateRequestCount.increment();
HRegion region = getRegion(request.getRegion());
MutateResponse.Builder builder = MutateResponse.newBuilder();
MutationProto mutation = request.getMutation();
if (!region.getRegionInfo().isMetaRegion()) {
regionServer.getMemStoreFlusher().reclaimMemStoreMemory();
}
long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE;
quota = getRpcQuotaManager().checkQuota(region, OperationQuota.OperationType.MUTATE);
ActivePolicyEnforcement spaceQuotaEnforcement = getSpaceQuotaManager()
.getActiveEnforcements();
if (request.hasCondition()) {
CheckAndMutateResult result = checkAndMutate(region, quota, mutation, cellScanner,
request.getCondition(), spaceQuotaEnforcement);
builder.setProcessed(result.isSuccess());
boolean clientCellBlockSupported = isClientCellBlockSupport(context);
addResult(builder, result.getResult(), controller, clientCellBlockSupported);
if (clientCellBlockSupported) {
addSize(context, result.getResult(), null);
}
} else {
Result r = null;
Boolean processed = null;
MutationType type = mutation.getMutateType();
switch (type) {
case APPEND:
// TODO: this doesn't actually check anything.
r = append(region, quota, mutation, cellScanner, nonceGroup, spaceQuotaEnforcement);
break;
case INCREMENT:
// TODO: this doesn't actually check anything.
r = increment(region, quota, mutation, cellScanner, nonceGroup, spaceQuotaEnforcement);
break;
case PUT:
put(region, quota, mutation, cellScanner, spaceQuotaEnforcement);
processed = Boolean.TRUE;
break;
case DELETE:
delete(region, quota, mutation, cellScanner, spaceQuotaEnforcement);
processed = Boolean.TRUE;
break;
default:
throw new DoNotRetryIOException("Unsupported mutate type: " + type.name());
}
if (processed != null) {
builder.setProcessed(processed);
}
boolean clientCellBlockSupported = isClientCellBlockSupport(context);
addResult(builder, r, controller, clientCellBlockSupported);
if (clientCellBlockSupported) {
addSize(context, r, null);
}
}
return builder.build();
} catch (IOException ie) {
regionServer.checkFileSystem();
throw new ServiceException(ie);
} finally {
if (quota != null) {
quota.close();
}
}
}
private void put(HRegion region, OperationQuota quota, MutationProto mutation,
CellScanner cellScanner, ActivePolicyEnforcement spaceQuota) throws IOException {
long before = EnvironmentEdgeManager.currentTime();
Put put = ProtobufUtil.toPut(mutation, cellScanner);
checkCellSizeLimit(region, put);
spaceQuota.getPolicyEnforcement(region).check(put);
quota.addMutation(put);
region.put(put);
MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
long after = EnvironmentEdgeManager.currentTime();
metricsRegionServer.updatePut(region.getRegionInfo().getTable(), after - before);
}
}
private void delete(HRegion region, OperationQuota quota, MutationProto mutation,
CellScanner cellScanner, ActivePolicyEnforcement spaceQuota) throws IOException {
long before = EnvironmentEdgeManager.currentTime();
Delete delete = ProtobufUtil.toDelete(mutation, cellScanner);
checkCellSizeLimit(region, delete);
spaceQuota.getPolicyEnforcement(region).check(delete);
quota.addMutation(delete);
region.delete(delete);
MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
long after = EnvironmentEdgeManager.currentTime();
metricsRegionServer.updateDelete(region.getRegionInfo().getTable(), after - before);
}
}
private CheckAndMutateResult checkAndMutate(HRegion region, OperationQuota quota,
MutationProto mutation, CellScanner cellScanner, Condition condition,
ActivePolicyEnforcement spaceQuota) throws IOException {
long before = EnvironmentEdgeManager.currentTime();
CheckAndMutate checkAndMutate = ProtobufUtil.toCheckAndMutate(condition, mutation,
cellScanner);
checkCellSizeLimit(region, (Mutation) checkAndMutate.getAction());
spaceQuota.getPolicyEnforcement(region).check((Mutation) checkAndMutate.getAction());
quota.addMutation((Mutation) checkAndMutate.getAction());
CheckAndMutateResult result = null;
if (region.getCoprocessorHost() != null) {
result = region.getCoprocessorHost().preCheckAndMutate(checkAndMutate);
}
if (result == null) {
result = region.checkAndMutate(checkAndMutate);
if (region.getCoprocessorHost() != null) {
result = region.getCoprocessorHost().postCheckAndMutate(checkAndMutate, result);
}
}
MetricsRegionServer metricsRegionServer = regionServer.getMetrics();
if (metricsRegionServer != null) {
long after = EnvironmentEdgeManager.currentTime();
metricsRegionServer.updateCheckAndMutate(
region.getRegionInfo().getTable(), after - before);
MutationType type = mutation.getMutateType();
switch (type) {
case PUT:
metricsRegionServer.updateCheckAndPut(
region.getRegionInfo().getTable(), after - before);
break;
case DELETE:
metricsRegionServer.updateCheckAndDelete(
region.getRegionInfo().getTable(), after - before);
break;
default:
break;
}
}
return result;
}
// This is used to keep compatible with the old client implementation. Consider remove it if we
// decide to drop the support of the client that still sends close request to a region scanner
// which has already been exhausted.
@Deprecated
private static final IOException SCANNER_ALREADY_CLOSED = new IOException() {
private static final long serialVersionUID = -4305297078988180130L;
@Override
public synchronized Throwable fillInStackTrace() {
return this;
}
};
private RegionScannerHolder getRegionScanner(ScanRequest request) throws IOException {
String scannerName = toScannerName(request.getScannerId());
RegionScannerHolder rsh = this.scanners.get(scannerName);
if (rsh == null) {
// just ignore the next or close request if scanner does not exists.
if (closedScanners.getIfPresent(scannerName) != null) {
throw SCANNER_ALREADY_CLOSED;
} else {
LOG.warn("Client tried to access missing scanner " + scannerName);
throw new UnknownScannerException(
"Unknown scanner '" + scannerName + "'. This can happen due to any of the following " +
"reasons: a) Scanner id given is wrong, b) Scanner lease expired because of " +
"long wait between consecutive client checkins, c) Server may be closing down, " +
"d) RegionServer restart during upgrade.\nIf the issue is due to reason (b), a " +
"possible fix would be increasing the value of" +
"'hbase.client.scanner.timeout.period' configuration.");
}
}
RegionInfo hri = rsh.s.getRegionInfo();
// Yes, should be the same instance
if (regionServer.getOnlineRegion(hri.getRegionName()) != rsh.r) {
String msg = "Region has changed on the scanner " + scannerName + ": regionName="
+ hri.getRegionNameAsString() + ", scannerRegionName=" + rsh.r;
LOG.warn(msg + ", closing...");
scanners.remove(scannerName);
try {
rsh.s.close();
} catch (IOException e) {
LOG.warn("Getting exception closing " + scannerName, e);
} finally {
try {
regionServer.getLeaseManager().cancelLease(scannerName);
} catch (LeaseException e) {
LOG.warn("Getting exception closing " + scannerName, e);
}
}
throw new NotServingRegionException(msg);
}
return rsh;
}
/**
* @return Pair with scannerName key to use with this new Scanner and its RegionScannerHolder
* value.
*/
private Pair newRegionScanner(ScanRequest request,
ScanResponse.Builder builder) throws IOException {
HRegion region = getRegion(request.getRegion());
ClientProtos.Scan protoScan = request.getScan();
boolean isLoadingCfsOnDemandSet = protoScan.hasLoadColumnFamiliesOnDemand();
Scan scan = ProtobufUtil.toScan(protoScan);
// if the request doesn't set this, get the default region setting.
if (!isLoadingCfsOnDemandSet) {
scan.setLoadColumnFamiliesOnDemand(region.isLoadingCfsOnDemandDefault());
}
if (!scan.hasFamilies()) {
// Adding all families to scanner
for (byte[] family : region.getTableDescriptor().getColumnFamilyNames()) {
scan.addFamily(family);
}
}
if (region.getCoprocessorHost() != null) {
// preScannerOpen is not allowed to return a RegionScanner. Only post hook can create a
// wrapper for the core created RegionScanner
region.getCoprocessorHost().preScannerOpen(scan);
}
RegionScannerImpl coreScanner = region.getScanner(scan);
Shipper shipper = coreScanner;
RegionScanner scanner = coreScanner;
if (region.getCoprocessorHost() != null) {
scanner = region.getCoprocessorHost().postScannerOpen(scan, scanner);
}
long scannerId = scannerIdGenerator.generateNewScannerId();
builder.setScannerId(scannerId);
builder.setMvccReadPoint(scanner.getMvccReadPoint());
builder.setTtl(scannerLeaseTimeoutPeriod);
String scannerName = toScannerName(scannerId);
boolean fullRegionScan = !region.getRegionInfo().getTable().isSystemTable() &&
isFullRegionScan(scan, region);
return new Pair(scannerName,
addScanner(scannerName, scanner, shipper, region, scan.isNeedCursorResult(),
fullRegionScan));
}
/**
* The returned String is used as key doing look up of outstanding Scanners in this Servers'
* this.scanners, the Map of outstanding scanners and their current state.
* @param scannerId A scanner long id.
* @return The long id as a String.
*/
private static String toScannerName(long scannerId) {
return Long.toString(scannerId);
}
private void checkScanNextCallSeq(ScanRequest request, RegionScannerHolder rsh)
throws OutOfOrderScannerNextException {
// if nextCallSeq does not match throw Exception straight away. This needs to be
// performed even before checking of Lease.
// See HBASE-5974
if (request.hasNextCallSeq()) {
long callSeq = request.getNextCallSeq();
if (!rsh.incNextCallSeq(callSeq)) {
throw new OutOfOrderScannerNextException("Expected nextCallSeq: " + rsh.getNextCallSeq()
+ " But the nextCallSeq got from client: " + request.getNextCallSeq() + "; request="
+ TextFormat.shortDebugString(request));
}
}
}
private void addScannerLeaseBack(LeaseManager.Lease lease) {
try {
regionServer.getLeaseManager().addLease(lease);
} catch (LeaseStillHeldException e) {
// should not happen as the scanner id is unique.
throw new AssertionError(e);
}
}
private long getTimeLimit(HBaseRpcController controller, boolean allowHeartbeatMessages) {
// Set the time limit to be half of the more restrictive timeout value (one of the
// timeout values must be positive). In the event that both values are positive, the
// more restrictive of the two is used to calculate the limit.
if (allowHeartbeatMessages && (scannerLeaseTimeoutPeriod > 0 || rpcTimeout > 0)) {
long timeLimitDelta;
if (scannerLeaseTimeoutPeriod > 0 && rpcTimeout > 0) {
timeLimitDelta = Math.min(scannerLeaseTimeoutPeriod, rpcTimeout);
} else {
timeLimitDelta = scannerLeaseTimeoutPeriod > 0 ? scannerLeaseTimeoutPeriod : rpcTimeout;
}
if (controller != null && controller.getCallTimeout() > 0) {
timeLimitDelta = Math.min(timeLimitDelta, controller.getCallTimeout());
}
// Use half of whichever timeout value was more restrictive... But don't allow
// the time limit to be less than the allowable minimum (could cause an
// immediatate timeout before scanning any data).
timeLimitDelta = Math.max(timeLimitDelta / 2, minimumScanTimeLimitDelta);
// XXX: Can not use EnvironmentEdge here because TestIncrementTimeRange use a
// ManualEnvironmentEdge. Consider using System.nanoTime instead.
return System.currentTimeMillis() + timeLimitDelta;
}
// Default value of timeLimit is negative to indicate no timeLimit should be
// enforced.
return -1L;
}
private void checkLimitOfRows(int numOfCompleteRows, int limitOfRows, boolean moreRows,
ScannerContext scannerContext, ScanResponse.Builder builder) {
if (numOfCompleteRows >= limitOfRows) {
if (LOG.isTraceEnabled()) {
LOG.trace("Done scanning, limit of rows reached, moreRows: " + moreRows +
" scannerContext: " + scannerContext);
}
builder.setMoreResults(false);
}
}
// return whether we have more results in region.
private void scan(HBaseRpcController controller, ScanRequest request, RegionScannerHolder rsh,
long maxQuotaResultSize, int maxResults, int limitOfRows, List results,
ScanResponse.Builder builder, MutableObject | | |