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/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.internal.partition.operation;
import com.hazelcast.cluster.Address;
import com.hazelcast.cluster.Member;
import com.hazelcast.internal.cluster.impl.ClusterServiceImpl;
import com.hazelcast.internal.partition.ChunkSerDeHelper;
import com.hazelcast.internal.partition.ChunkSupplier;
import com.hazelcast.internal.partition.InternalPartitionService;
import com.hazelcast.internal.partition.PartitionReplica;
import com.hazelcast.internal.partition.ReplicaErrorLogger;
import com.hazelcast.internal.partition.impl.InternalPartitionImpl;
import com.hazelcast.internal.partition.impl.InternalPartitionServiceImpl;
import com.hazelcast.internal.partition.impl.PartitionDataSerializerHook;
import com.hazelcast.internal.partition.impl.PartitionReplicaManager;
import com.hazelcast.internal.partition.impl.PartitionStateManager;
import com.hazelcast.internal.services.ServiceNamespace;
import com.hazelcast.logging.ILogger;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.impl.Versioned;
import com.hazelcast.spi.exception.WrongTargetException;
import com.hazelcast.spi.impl.AllowedDuringPassiveState;
import com.hazelcast.spi.impl.NodeEngine;
import com.hazelcast.spi.impl.operationservice.BackupOperation;
import com.hazelcast.spi.impl.operationservice.Operation;
import com.hazelcast.spi.impl.operationservice.OperationResponseHandler;
import com.hazelcast.spi.impl.operationservice.PartitionAwareOperation;
import com.hazelcast.spi.impl.operationservice.TargetAware;
import com.hazelcast.spi.impl.operationservice.UrgentSystemOperation;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.logging.Level;
import static com.hazelcast.internal.partition.ChunkSerDeHelper.readChunkedOperations;
import static com.hazelcast.internal.serialization.impl.SerializationUtil.readNullableCollection;
import static com.hazelcast.internal.serialization.impl.SerializationUtil.writeNullableCollection;
import static com.hazelcast.spi.impl.operationexecutor.OperationRunner.runDirect;
import static com.hazelcast.spi.impl.operationservice.OperationResponseHandlerFactory.createErrorLoggingResponseHandler;
/**
* The replica synchronization response sent from the partition
* owner to a replica. It will execute the received operation list
* if the replica index hasn't changed. If the current replica
* index is not the one sent by the partition owner, it will :
*
*
fail all received operations
*
cancel the current replica sync request
*
if the node is still a replica it will reschedule the replica synchronization request
*
if the node is not a replica anymore it will clear the replica versions for the partition
*
*/
@SuppressFBWarnings("EI_EXPOSE_REP")
public class PartitionReplicaSyncResponse extends AbstractPartitionOperation
implements PartitionAwareOperation, BackupOperation, UrgentSystemOperation,
AllowedDuringPassiveState, TargetAware, Versioned {
private Collection operations;
private ServiceNamespace namespace;
private long[] versions;
private transient ChunkSerDeHelper chunkSerDeHelper;
public PartitionReplicaSyncResponse() {
}
public PartitionReplicaSyncResponse(Collection operations,
Collection chunkSuppliers,
ServiceNamespace namespace,
long[] versions,
int maxTotalChunkedDataInBytes,
ILogger logger,
int partitionId) {
this.operations = operations;
this.namespace = namespace;
this.versions = versions;
this.chunkSerDeHelper = new ChunkSerDeHelper(logger, partitionId,
chunkSuppliers, maxTotalChunkedDataInBytes);
}
@Override
public void run() throws Exception {
NodeEngine nodeEngine = getNodeEngine();
InternalPartitionServiceImpl partitionService = getService();
int partitionId = getPartitionId();
int replicaIndex = getReplicaIndex();
PartitionStateManager partitionStateManager = partitionService.getPartitionStateManager();
InternalPartitionImpl partition = partitionStateManager.getPartitionImpl(partitionId);
int currentReplicaIndex = partition.getReplicaIndex(PartitionReplica.from(nodeEngine.getLocalMember()));
try {
if (replicaIndex == currentReplicaIndex) {
executeOperations();
} else {
nodeNotOwnsBackup(partition);
}
if (operations != null) {
operations.clear();
}
} finally {
postProcessReplicaSync(partitionService, currentReplicaIndex);
}
}
private void postProcessReplicaSync(InternalPartitionServiceImpl partitionService, int currentReplicaIndex) {
int partitionId = getPartitionId();
int replicaIndex = getReplicaIndex();
PartitionReplicaManager replicaManager = partitionService.getReplicaManager();
if (replicaIndex == currentReplicaIndex) {
replicaManager.finalizeReplicaSync(partitionId, replicaIndex, namespace, versions);
} else {
replicaManager.clearReplicaSyncRequest(partitionId, namespace, replicaIndex);
if (currentReplicaIndex < 0) {
replicaManager.clearPartitionReplicaVersions(partitionId, namespace);
}
}
}
/**
* Fail all replication operations with the exception that this node is no longer the replica with the sent index
*/
private void nodeNotOwnsBackup(InternalPartitionImpl partition) {
int partitionId = getPartitionId();
int replicaIndex = getReplicaIndex();
NodeEngine nodeEngine = getNodeEngine();
ILogger logger = getLogger();
if (logger.isFinestEnabled()) {
int currentReplicaIndex = partition.getReplicaIndex(PartitionReplica.from(nodeEngine.getLocalMember()));
logger.finest(
"This node is not backup replica of partitionId=" + partitionId + ", replicaIndex=" + replicaIndex
+ " anymore. current replicaIndex=" + currentReplicaIndex);
}
if (operations != null) {
PartitionReplica replica = partition.getReplica(replicaIndex);
Member targetMember = null;
if (replica != null) {
ClusterServiceImpl clusterService = (ClusterServiceImpl) nodeEngine.getClusterService();
targetMember = clusterService.getMember(replica.address(), replica.uuid());
}
Throwable throwable = new WrongTargetException(nodeEngine.getLocalMember(), targetMember, partitionId,
replicaIndex, getClass().getName());
for (Operation op : operations) {
prepareOperation(op);
onOperationFailure(op, throwable);
}
}
}
private void executeOperations() {
int partitionId = getPartitionId();
int replicaIndex = getReplicaIndex();
if (operations != null && !operations.isEmpty()) {
logApplyReplicaSync(partitionId, replicaIndex);
for (Operation op : operations) {
prepareOperation(op);
try {
runDirect(op);
} catch (Throwable e) {
onOperationFailure(op, e);
logException(op, e);
}
}
} else {
logEmptyTaskList(partitionId, replicaIndex);
}
}
private void prepareOperation(Operation op) {
int partitionId = getPartitionId();
int replicaIndex = getReplicaIndex();
NodeEngine nodeEngine = getNodeEngine();
ILogger opLogger = nodeEngine.getLogger(op.getClass());
OperationResponseHandler responseHandler = createErrorLoggingResponseHandler(opLogger);
op.setNodeEngine(nodeEngine).setPartitionId(partitionId)
.setReplicaIndex(replicaIndex).setOperationResponseHandler(responseHandler);
}
private void logEmptyTaskList(int partitionId, int replicaIndex) {
ILogger logger = getLogger();
if (logger.isFinestEnabled()) {
logger.finest("No data available for replica sync, partitionId=" + partitionId
+ ", replicaIndex=" + replicaIndex + ", namespace=" + namespace
+ ", versions=" + Arrays.toString(versions));
}
}
private void logException(Operation op, Throwable e) {
ILogger logger = getLogger();
NodeEngine nodeEngine = getNodeEngine();
Level level = nodeEngine.isRunning() ? Level.WARNING : Level.FINEST;
if (logger.isLoggable(level)) {
logger.log(level, "While executing " + op, e);
}
}
private void logApplyReplicaSync(int partitionId, int replicaIndex) {
ILogger logger = getLogger();
if (logger.isFinestEnabled()) {
logger.finest("Applying replica sync for partitionId=" + partitionId
+ ", replicaIndex=" + replicaIndex + ", namespace=" + namespace
+ ", versions=" + Arrays.toString(versions));
}
}
@Override
public boolean returnsResponse() {
return false;
}
@Override
public boolean validatesTarget() {
return false;
}
@Override
public String getServiceName() {
return InternalPartitionService.SERVICE_NAME;
}
@Override
public void onExecutionFailure(Throwable e) {
if (operations != null) {
for (Operation op : operations) {
prepareOperation(op);
onOperationFailure(op, e);
}
}
}
private void onOperationFailure(Operation op, Throwable e) {
try {
op.onExecutionFailure(e);
} catch (Throwable t) {
getLogger().warning("While calling operation.onFailure(). op: " + op, t);
}
}
@Override
public void logError(Throwable e) {
ReplicaErrorLogger.log(e, getLogger());
}
@Override
public void setTarget(Address address) {
if (operations != null) {
for (Operation op : operations) {
if (op instanceof TargetAware) {
((TargetAware) op).setTarget(address);
}
}
}
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
out.writeObject(namespace);
out.writeLongArray(versions);
writeNullableCollection(operations, out);
chunkSerDeHelper.writeChunkedOperations(out);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
namespace = in.readObject();
versions = in.readLongArray();
operations = readNullableCollection(in);
operations = readChunkedOperations(in, operations);
}
@Override
protected void toString(StringBuilder sb) {
super.toString(sb);
sb.append(", namespace=").append(namespace);
sb.append(", versions=").append(Arrays.toString(versions));
}
@Override
public int getClassId() {
return PartitionDataSerializerHook.REPLICA_SYNC_RESPONSE;
}
}
