org.apache.hadoop.hdfs.server.datanode.ReportBadBlockAction Maven / Gradle / Ivy
/**
* 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.hdfs.server.datanode;
import java.io.IOException;
import org.apache.hadoop.fs.StorageType;
import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
import org.apache.hadoop.hdfs.protocol.DatanodeInfo.DatanodeInfoBuilder;
import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
import org.apache.hadoop.ipc.RemoteException;
/**
* ReportBadBlockAction is an instruction issued by {{BPOfferService}} to
* {{BPServiceActor}} to report bad block to namenode
*
*/
public class ReportBadBlockAction implements BPServiceActorAction {
private final ExtendedBlock block;
private final String storageUuid;
private final StorageType storageType;
public ReportBadBlockAction(ExtendedBlock block, String storageUuid,
StorageType storageType) {
this.block = block;
this.storageUuid = storageUuid;
this.storageType = storageType;
}
@Override
public void reportTo(DatanodeProtocolClientSideTranslatorPB bpNamenode,
DatanodeRegistration bpRegistration) throws BPServiceActorActionException {
if (bpRegistration == null) {
return;
}
DatanodeInfo[] dnArr = {new DatanodeInfoBuilder()
.setNodeID(bpRegistration).build()};
String[] uuids = { storageUuid };
StorageType[] types = { storageType };
LocatedBlock[] locatedBlock = { new LocatedBlock(block,
dnArr, uuids, types) };
try {
bpNamenode.reportBadBlocks(locatedBlock);
} catch (RemoteException re) {
DataNode.LOG.info("reportBadBlock encountered RemoteException for "
+ "block: " + block , re);
} catch (IOException e) {
throw new BPServiceActorActionException("Failed to report bad block "
+ block + " to namenode.", e);
}
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((block == null) ? 0 : block.hashCode());
result = prime * result
+ ((storageType == null) ? 0 : storageType.hashCode());
result = prime * result
+ ((storageUuid == null) ? 0 : storageUuid.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !(obj instanceof ReportBadBlockAction)) {
return false;
}
ReportBadBlockAction other = (ReportBadBlockAction) obj;
if (block == null) {
if (other.block != null) {
return false;
}
} else if (!block.equals(other.block)) {
return false;
}
if (storageType != other.storageType) {
return false;
}
if (storageUuid == null) {
if (other.storageUuid != null) {
return false;
}
} else if (!storageUuid.equals(other.storageUuid)) {
return false;
}
return true;
}
}