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/*
* 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.master;
import java.io.IOException;
import java.util.List;
import java.util.Set;
import com.google.protobuf.Service;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.MetaMutationAnnotation;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.MasterSwitchType;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.SnapshotDescription;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.coprocessor.BaseEnvironment;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.apache.hadoop.hbase.coprocessor.CoprocessorService;
import org.apache.hadoop.hbase.coprocessor.CoprocessorServiceBackwardCompatiblity;
import org.apache.hadoop.hbase.coprocessor.CoreCoprocessor;
import org.apache.hadoop.hbase.coprocessor.HasMasterServices;
import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;
import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;
import org.apache.hadoop.hbase.coprocessor.MasterObserver;
import org.apache.hadoop.hbase.coprocessor.MetricsCoprocessor;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.hadoop.hbase.master.locking.LockProcedure;
import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
import org.apache.hadoop.hbase.metrics.MetricRegistry;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.procedure2.LockType;
import org.apache.hadoop.hbase.procedure2.LockedResource;
import org.apache.hadoop.hbase.procedure2.Procedure;
import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;
import org.apache.hadoop.hbase.quotas.GlobalQuotaSettings;
import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;
import org.apache.hadoop.hbase.security.User;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Provides the coprocessor framework and environment for master oriented
* operations. {@link HMaster} interacts with the loaded coprocessors
* through this class.
*/
@InterfaceAudience.Private
public class MasterCoprocessorHost
extends CoprocessorHost {
private static final Log LOG = LogFactory.getLog(MasterCoprocessorHost.class);
/**
* Coprocessor environment extension providing access to master related
* services.
*/
private static class MasterEnvironment extends BaseEnvironment
implements MasterCoprocessorEnvironment {
private final Connection connection;
private final ServerName serverName;
private final boolean supportGroupCPs;
private final MetricRegistry metricRegistry;
public MasterEnvironment(final MasterCoprocessor impl, final int priority, final int seq,
final Configuration conf, final MasterServices services) {
super(impl, priority, seq, conf);
this.connection = services.getConnection();
this.serverName = services.getServerName();
supportGroupCPs = !useLegacyMethod(impl.getClass(),
"preBalanceRSGroup", ObserverContext.class, String.class);
this.metricRegistry =
MetricsCoprocessor.createRegistryForMasterCoprocessor(impl.getClass().getName());
}
@Override
public ServerName getServerName() {
return this.serverName;
}
@Override
public Connection getConnection() {
return this.connection;
}
@Override
public MetricRegistry getMetricRegistryForMaster() {
return metricRegistry;
}
@Override
public void shutdown() {
super.shutdown();
MetricsCoprocessor.removeRegistry(this.metricRegistry);
}
}
/**
* Special version of MasterEnvironment that exposes MasterServices for Core Coprocessors only.
* Temporary hack until Core Coprocessors are integrated into Core.
*/
private static class MasterEnvironmentForCoreCoprocessors extends MasterEnvironment
implements HasMasterServices {
private final MasterServices masterServices;
public MasterEnvironmentForCoreCoprocessors(final MasterCoprocessor impl, final int priority,
final int seq, final Configuration conf, final MasterServices services) {
super(impl, priority, seq, conf, services);
this.masterServices = services;
}
/**
* @return An instance of MasterServices, an object NOT for general user-space Coprocessor
* consumption.
*/
public MasterServices getMasterServices() {
return this.masterServices;
}
}
private MasterServices masterServices;
public MasterCoprocessorHost(final MasterServices services, final Configuration conf) {
super(services);
this.conf = conf;
this.masterServices = services;
// Log the state of coprocessor loading here; should appear only once or
// twice in the daemon log, depending on HBase version, because there is
// only one MasterCoprocessorHost instance in the master process
boolean coprocessorsEnabled = conf.getBoolean(COPROCESSORS_ENABLED_CONF_KEY,
DEFAULT_COPROCESSORS_ENABLED);
LOG.info("System coprocessor loading is " + (coprocessorsEnabled ? "enabled" : "disabled"));
loadSystemCoprocessors(conf, MASTER_COPROCESSOR_CONF_KEY);
}
@Override
public MasterEnvironment createEnvironment(final MasterCoprocessor instance, final int priority,
final int seq, final Configuration conf) {
// If coprocessor exposes any services, register them.
for (Service service : instance.getServices()) {
masterServices.registerService(service);
}
// If a CoreCoprocessor, return a 'richer' environment, one laden with MasterServices.
return instance.getClass().isAnnotationPresent(CoreCoprocessor.class)?
new MasterEnvironmentForCoreCoprocessors(instance, priority, seq, conf, masterServices):
new MasterEnvironment(instance, priority, seq, conf, masterServices);
}
@Override
public MasterCoprocessor checkAndGetInstance(Class implClass)
throws InstantiationException, IllegalAccessException {
if (MasterCoprocessor.class.isAssignableFrom(implClass)) {
return (MasterCoprocessor)implClass.newInstance();
} else if (CoprocessorService.class.isAssignableFrom(implClass)) {
// For backward compatibility with old CoprocessorService impl which don't extend
// MasterCoprocessor.
return new CoprocessorServiceBackwardCompatiblity.MasterCoprocessorService(
(CoprocessorService)implClass.newInstance());
} else {
LOG.error(implClass.getName() + " is not of type MasterCoprocessor. Check the "
+ "configuration " + CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY);
return null;
}
}
private ObserverGetter masterObserverGetter =
MasterCoprocessor::getMasterObserver;
abstract class MasterObserverOperation extends
ObserverOperationWithoutResult {
public MasterObserverOperation(){
super(masterObserverGetter);
}
public MasterObserverOperation(boolean bypassable) {
this(null, bypassable);
}
public MasterObserverOperation(User user) {
super(masterObserverGetter, user);
}
public MasterObserverOperation(User user, boolean bypassable) {
super(masterObserverGetter, user, bypassable);
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// MasterObserver operations
//////////////////////////////////////////////////////////////////////////////////////////////////
public void preCreateNamespace(final NamespaceDescriptor ns) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preCreateNamespace(this, ns);
}
});
}
public void postCreateNamespace(final NamespaceDescriptor ns) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCreateNamespace(this, ns);
}
});
}
public void preDeleteNamespace(final String namespaceName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDeleteNamespace(this, namespaceName);
}
});
}
public void postDeleteNamespace(final String namespaceName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDeleteNamespace(this, namespaceName);
}
});
}
public void preModifyNamespace(final NamespaceDescriptor ns) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preModifyNamespace(this, ns);
}
});
}
public void postModifyNamespace(final NamespaceDescriptor ns) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postModifyNamespace(this, ns);
}
});
}
public void preGetNamespaceDescriptor(final String namespaceName)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetNamespaceDescriptor(this, namespaceName);
}
});
}
public void postGetNamespaceDescriptor(final NamespaceDescriptor ns)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetNamespaceDescriptor(this, ns);
}
});
}
public void preListNamespaceDescriptors(final List descriptors)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preListNamespaceDescriptors(this, descriptors);
}
});
}
public void postListNamespaceDescriptors(final List descriptors)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postListNamespaceDescriptors(this, descriptors);
}
});
}
/* Implementation of hooks for invoking MasterObservers */
public void preCreateTable(final TableDescriptor htd, final RegionInfo[] regions)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preCreateTable(this, htd, regions);
}
});
}
public void postCreateTable(final TableDescriptor htd, final RegionInfo[] regions)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCreateTable(this, htd, regions);
}
});
}
public void preCreateTableAction(final TableDescriptor htd, final RegionInfo[] regions,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preCreateTableAction(this, htd, regions);
}
});
}
public void postCompletedCreateTableAction(
final TableDescriptor htd, final RegionInfo[] regions, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedCreateTableAction(this, htd, regions);
}
});
}
public void preDeleteTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDeleteTable(this, tableName);
}
});
}
public void postDeleteTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDeleteTable(this, tableName);
}
});
}
public void preDeleteTableAction(final TableName tableName, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDeleteTableAction(this, tableName);
}
});
}
public void postCompletedDeleteTableAction(final TableName tableName, final User user)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedDeleteTableAction(this, tableName);
}
});
}
public void preTruncateTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preTruncateTable(this, tableName);
}
});
}
public void postTruncateTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postTruncateTable(this, tableName);
}
});
}
public void preTruncateTableAction(final TableName tableName, final User user)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preTruncateTableAction(this, tableName);
}
});
}
public void postCompletedTruncateTableAction(final TableName tableName, final User user)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedTruncateTableAction(this, tableName);
}
});
}
public void preModifyTable(final TableName tableName, final TableDescriptor htd)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preModifyTable(this, tableName, htd);
}
});
}
public void postModifyTable(final TableName tableName, final TableDescriptor htd)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postModifyTable(this, tableName, htd);
}
});
}
public void preModifyTableAction(final TableName tableName, final TableDescriptor htd,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preModifyTableAction(this, tableName, htd);
}
});
}
public void postCompletedModifyTableAction(final TableName tableName, final TableDescriptor htd,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedModifyTableAction(this, tableName, htd);
}
});
}
public void preEnableTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preEnableTable(this, tableName);
}
});
}
public void postEnableTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postEnableTable(this, tableName);
}
});
}
public void preEnableTableAction(final TableName tableName, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preEnableTableAction(this, tableName);
}
});
}
public void postCompletedEnableTableAction(final TableName tableName, final User user)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedEnableTableAction(this, tableName);
}
});
}
public void preDisableTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDisableTable(this, tableName);
}
});
}
public void postDisableTable(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDisableTable(this, tableName);
}
});
}
public void preDisableTableAction(final TableName tableName, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDisableTableAction(this, tableName);
}
});
}
public void postCompletedDisableTableAction(final TableName tableName, final User user)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedDisableTableAction(this, tableName);
}
});
}
public void preAbortProcedure(
final ProcedureExecutor procEnv,
final long procId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preAbortProcedure(this, procId);
}
});
}
public void postAbortProcedure() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postAbortProcedure(this);
}
});
}
public void preGetProcedures() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetProcedures(this);
}
});
}
public void postGetProcedures(final List> procInfoList) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetProcedures(this);
}
});
}
public void preGetLocks() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetLocks(this);
}
});
}
public void postGetLocks(final List lockedResources) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetLocks(this);
}
});
}
public void preMove(final RegionInfo region, final ServerName srcServer,
final ServerName destServer) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preMove(this, region, srcServer, destServer);
}
});
}
public void postMove(final RegionInfo region, final ServerName srcServer,
final ServerName destServer) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postMove(this, region, srcServer, destServer);
}
});
}
public void preAssign(final RegionInfo regionInfo) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preAssign(this, regionInfo);
}
});
}
public void postAssign(final RegionInfo regionInfo) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postAssign(this, regionInfo);
}
});
}
public void preUnassign(final RegionInfo regionInfo, final boolean force)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preUnassign(this, regionInfo, force);
}
});
}
public void postUnassign(final RegionInfo regionInfo, final boolean force) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postUnassign(this, regionInfo, force);
}
});
}
public void preRegionOffline(final RegionInfo regionInfo) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preRegionOffline(this, regionInfo);
}
});
}
public void postRegionOffline(final RegionInfo regionInfo) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRegionOffline(this, regionInfo);
}
});
}
public void preMergeRegions(final RegionInfo[] regionsToMerge)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preMergeRegions(this, regionsToMerge);
}
});
}
public void postMergeRegions(final RegionInfo[] regionsToMerge)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postMergeRegions(this, regionsToMerge);
}
});
}
public boolean preBalance() throws IOException {
return execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preBalance(this);
}
});
}
public void postBalance(final List plans) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postBalance(this, plans);
}
});
}
public void preSetSplitOrMergeEnabled(final boolean newValue,
final MasterSwitchType switchType) throws IOException {
execOperation(coprocEnvironments.isEmpty()? null: new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetSplitOrMergeEnabled(this, newValue, switchType);
}
});
}
public void postSetSplitOrMergeEnabled(final boolean newValue,
final MasterSwitchType switchType) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetSplitOrMergeEnabled(this, newValue, switchType);
}
});
}
/**
* Invoked just before calling the split region procedure
* @param tableName the table where the region belongs to
* @param splitRow the split point
* @throws IOException
*/
public void preSplitRegion(
final TableName tableName,
final byte[] splitRow) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSplitRegion(this, tableName, splitRow);
}
});
}
/**
* Invoked just before a split
* @param tableName the table where the region belongs to
* @param splitRow the split point
* @param user the user
* @throws IOException
*/
public void preSplitRegionAction(
final TableName tableName,
final byte[] splitRow,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSplitRegionAction(this, tableName, splitRow);
}
});
}
/**
* Invoked just after a split
* @param regionInfoA the new left-hand daughter region
* @param regionInfoB the new right-hand daughter region
* @param user the user
* @throws IOException
*/
public void postCompletedSplitRegionAction(
final RegionInfo regionInfoA,
final RegionInfo regionInfoB,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedSplitRegionAction(this, regionInfoA, regionInfoB);
}
});
}
/**
* This will be called before update META step as part of split table region procedure.
* @param splitKey
* @param metaEntries
* @param user the user
* @throws IOException
*/
public void preSplitBeforeMETAAction(
final byte[] splitKey,
final List metaEntries,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSplitRegionBeforeMETAAction(this, splitKey, metaEntries);
}
});
}
/**
* This will be called after update META step as part of split table region procedure.
* @param user the user
* @throws IOException
*/
public void preSplitAfterMETAAction(final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSplitRegionAfterMETAAction(this);
}
});
}
/**
* Invoked just after the rollback of a failed split
* @param user the user
* @throws IOException
*/
public void postRollBackSplitRegionAction(final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRollBackSplitRegionAction(this);
}
});
}
/**
* Invoked just before a merge
* @param regionsToMerge the regions to merge
* @param user the user
* @throws IOException
*/
public void preMergeRegionsAction(
final RegionInfo[] regionsToMerge, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preMergeRegionsAction(this, regionsToMerge);
}
});
}
/**
* Invoked after completing merge regions operation
* @param regionsToMerge the regions to merge
* @param mergedRegion the new merged region
* @param user the user
* @throws IOException
*/
public void postCompletedMergeRegionsAction(
final RegionInfo[] regionsToMerge,
final RegionInfo mergedRegion,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCompletedMergeRegionsAction(this, regionsToMerge, mergedRegion);
}
});
}
/**
* Invoked before merge regions operation writes the new region to hbase:meta
* @param regionsToMerge the regions to merge
* @param metaEntries the meta entry
* @param user the user
* @throws IOException
*/
public void preMergeRegionsCommit(
final RegionInfo[] regionsToMerge,
final @MetaMutationAnnotation List metaEntries,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preMergeRegionsCommitAction(this, regionsToMerge, metaEntries);
}
});
}
/**
* Invoked after merge regions operation writes the new region to hbase:meta
* @param regionsToMerge the regions to merge
* @param mergedRegion the new merged region
* @param user the user
* @throws IOException
*/
public void postMergeRegionsCommit(
final RegionInfo[] regionsToMerge,
final RegionInfo mergedRegion,
final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postMergeRegionsCommitAction(this, regionsToMerge, mergedRegion);
}
});
}
/**
* Invoked after rollback merge regions operation
* @param regionsToMerge the regions to merge
* @param user the user
* @throws IOException
*/
public void postRollBackMergeRegionsAction(
final RegionInfo[] regionsToMerge, final User user) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation(user) {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRollBackMergeRegionsAction(this, regionsToMerge);
}
});
}
// This hook allows Coprocessor change value of balance switch.
public void preBalanceSwitch(final boolean b) throws IOException {
if (this.coprocEnvironments.isEmpty()) {
return;
}
execOperation(new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preBalanceSwitch(this, b);
}
});
}
public void postBalanceSwitch(final boolean oldValue, final boolean newValue)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postBalanceSwitch(this, oldValue, newValue);
}
});
}
public void preShutdown() throws IOException {
// While stopping the cluster all coprocessors method should be executed first then the
// coprocessor should be cleaned up.
if (coprocEnvironments.isEmpty()) {
return;
}
execShutdown(new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preShutdown(this);
}
@Override
public void postEnvCall() {
// invoke coprocessor stop method
shutdown(this.getEnvironment());
}
});
}
public void preStopMaster() throws IOException {
// While stopping master all coprocessors method should be executed first then the coprocessor
// environment should be cleaned up.
if (coprocEnvironments.isEmpty()) {
return;
}
execShutdown(new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preStopMaster(this);
}
@Override
public void postEnvCall() {
// invoke coprocessor stop method
shutdown(this.getEnvironment());
}
});
}
public void preMasterInitialization() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preMasterInitialization(this);
}
});
}
public void postStartMaster() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postStartMaster(this);
}
});
}
public void preSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void postSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void preListSnapshot(final SnapshotDescription snapshot) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preListSnapshot(this, snapshot);
}
});
}
public void postListSnapshot(final SnapshotDescription snapshot) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postListSnapshot(this, snapshot);
}
});
}
public void preCloneSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preCloneSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void postCloneSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postCloneSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void preRestoreSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preRestoreSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void postRestoreSnapshot(final SnapshotDescription snapshot,
final TableDescriptor hTableDescriptor) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRestoreSnapshot(this, snapshot, hTableDescriptor);
}
});
}
public void preDeleteSnapshot(final SnapshotDescription snapshot) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDeleteSnapshot(this, snapshot);
}
});
}
public void postDeleteSnapshot(final SnapshotDescription snapshot) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDeleteSnapshot(this, snapshot);
}
});
}
public void preGetTableDescriptors(final List tableNamesList,
final List descriptors, final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetTableDescriptors(this, tableNamesList, descriptors, regex);
}
});
}
public void postGetTableDescriptors(final List tableNamesList,
final List descriptors, final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetTableDescriptors(this, tableNamesList, descriptors, regex);
}
});
}
public void preGetTableNames(final List descriptors,
final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetTableNames(this, descriptors, regex);
}
});
}
public void postGetTableNames(final List descriptors,
final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetTableNames(this, descriptors, regex);
}
});
}
public void preTableFlush(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preTableFlush(this, tableName);
}
});
}
public void postTableFlush(final TableName tableName) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postTableFlush(this, tableName);
}
});
}
public void preSetUserQuota(
final String user, final GlobalQuotaSettings quotas) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetUserQuota(this, user, quotas);
}
});
}
public void postSetUserQuota(
final String user, final GlobalQuotaSettings quotas) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetUserQuota(this, user, quotas);
}
});
}
public void preSetUserQuota(
final String user, final TableName table, final GlobalQuotaSettings quotas)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetUserQuota(this, user, table, quotas);
}
});
}
public void postSetUserQuota(
final String user, final TableName table, final GlobalQuotaSettings quotas)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetUserQuota(this, user, table, quotas);
}
});
}
public void preSetUserQuota(
final String user, final String namespace, final GlobalQuotaSettings quotas)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetUserQuota(this, user, namespace, quotas);
}
});
}
public void postSetUserQuota(
final String user, final String namespace, final GlobalQuotaSettings quotas)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetUserQuota(this, user, namespace, quotas);
}
});
}
public void preSetTableQuota(
final TableName table, final GlobalQuotaSettings quotas) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetTableQuota(this, table, quotas);
}
});
}
public void postSetTableQuota(
final TableName table, final GlobalQuotaSettings quotas) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetTableQuota(this, table, quotas);
}
});
}
public void preSetNamespaceQuota(
final String namespace, final GlobalQuotaSettings quotas) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preSetNamespaceQuota(this, namespace, quotas);
}
});
}
public void postSetNamespaceQuota(
final String namespace, final GlobalQuotaSettings quotas) throws IOException{
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postSetNamespaceQuota(this, namespace, quotas);
}
});
}
public void preMoveServersAndTables(final Set servers, final Set tables,
final String targetGroup) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preMoveServersAndTables(this, servers, tables, targetGroup);
}
}
});
}
public void postMoveServersAndTables(final Set servers, final Set tables,
final String targetGroup) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postMoveServersAndTables(this, servers, tables, targetGroup);
}
}
});
}
public void preMoveServers(final Set servers, final String targetGroup)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preMoveServers(this, servers, targetGroup);
}
}
});
}
public void postMoveServers(final Set servers, final String targetGroup)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postMoveServers(this, servers, targetGroup);
}
}
});
}
public void preMoveTables(final Set tables, final String targetGroup)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preMoveTables(this, tables, targetGroup);
}
}
});
}
public void postMoveTables(final Set tables, final String targetGroup)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postMoveTables(this, tables, targetGroup);
}
}
});
}
public void preAddRSGroup(final String name)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preAddRSGroup(this, name);
}
}
});
}
public void postAddRSGroup(final String name)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if (((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postAddRSGroup(this, name);
}
}
});
}
public void preRemoveRSGroup(final String name)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preRemoveRSGroup(this, name);
}
}
});
}
public void postRemoveRSGroup(final String name)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postRemoveRSGroup(this, name);
}
}
});
}
public void preBalanceRSGroup(final String name)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.preBalanceRSGroup(this, name);
}
}
});
}
public void postBalanceRSGroup(final String name, final boolean balanceRan)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
if(((MasterEnvironment)getEnvironment()).supportGroupCPs) {
observer.postBalanceRSGroup(this, name, balanceRan);
}
}
});
}
public void preAddReplicationPeer(final String peerId, final ReplicationPeerConfig peerConfig)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preAddReplicationPeer(this, peerId, peerConfig);
}
});
}
public void postAddReplicationPeer(final String peerId, final ReplicationPeerConfig peerConfig)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postAddReplicationPeer(this, peerId, peerConfig);
}
});
}
public void preRemoveReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preRemoveReplicationPeer(this, peerId);
}
});
}
public void postRemoveReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRemoveReplicationPeer(this, peerId);
}
});
}
public void preEnableReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preEnableReplicationPeer(this, peerId);
}
});
}
public void postEnableReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postEnableReplicationPeer(this, peerId);
}
});
}
public void preDisableReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDisableReplicationPeer(this, peerId);
}
});
}
public void postDisableReplicationPeer(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDisableReplicationPeer(this, peerId);
}
});
}
public void preGetReplicationPeerConfig(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preGetReplicationPeerConfig(this, peerId);
}
});
}
public void postGetReplicationPeerConfig(final String peerId) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postGetReplicationPeerConfig(this, peerId);
}
});
}
public void preUpdateReplicationPeerConfig(final String peerId,
final ReplicationPeerConfig peerConfig) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preUpdateReplicationPeerConfig(this, peerId, peerConfig);
}
});
}
public void postUpdateReplicationPeerConfig(final String peerId,
final ReplicationPeerConfig peerConfig) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postUpdateReplicationPeerConfig(this, peerId, peerConfig);
}
});
}
public void preListReplicationPeers(final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preListReplicationPeers(this, regex);
}
});
}
public void postListReplicationPeers(final String regex) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postListReplicationPeers(this, regex);
}
});
}
public void preRequestLock(String namespace, TableName tableName, RegionInfo[] regionInfos,
LockType type, String description) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preRequestLock(this, namespace, tableName, regionInfos, description);
}
});
}
public void postRequestLock(String namespace, TableName tableName, RegionInfo[] regionInfos,
LockType type, String description) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRequestLock(this, namespace, tableName, regionInfos, description);
}
});
}
public void preLockHeartbeat(LockProcedure proc, boolean keepAlive) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preLockHeartbeat(this, proc.getTableName(), proc.getDescription());
}
});
}
public void postLockHeartbeat(LockProcedure proc, boolean keepAlive) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postLockHeartbeat(this);
}
});
}
public void preListDeadServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preListDeadServers(this);
}
});
}
public void postListDeadServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postListDeadServers(this);
}
});
}
public void preClearDeadServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preClearDeadServers(this);
}
});
}
public void postClearDeadServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postClearDeadServers(this);
}
});
}
public void preDecommissionRegionServers(List servers, boolean offload) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preDecommissionRegionServers(this, servers, offload);
}
});
}
public void postDecommissionRegionServers(List servers, boolean offload) throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postDecommissionRegionServers(this, servers, offload);
}
});
}
public void preListDecommissionedRegionServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preListDecommissionedRegionServers(this);
}
});
}
public void postListDecommissionedRegionServers() throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postListDecommissionedRegionServers(this);
}
});
}
public void preRecommissionRegionServer(ServerName server, List encodedRegionNames)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.preRecommissionRegionServer(this, server, encodedRegionNames);
}
});
}
public void postRecommissionRegionServer(ServerName server, List encodedRegionNames)
throws IOException {
execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
@Override
public void call(MasterObserver observer) throws IOException {
observer.postRecommissionRegionServer(this, server, encodedRegionNames);
}
});
}
}