hadoop BlockIdCommand 源码
haddop BlockIdCommand 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/BlockIdCommand.java
/**
* 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.protocol;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/****************************************************
* A BlockIdCommand is an instruction to a datanode
* regarding some blocks under its control.
****************************************************/
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class BlockIdCommand extends DatanodeCommand {
final String poolId;
final long blockIds[];
/**
* Create BlockCommand for the given action
*/
public BlockIdCommand(int action, String poolId, long[] blockIds) {
super(action);
this.poolId = poolId;
this.blockIds= blockIds;
}
public String getBlockPoolId() {
return poolId;
}
public long[] getBlockIds() {
return blockIds;
}
}
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