hadoop CheckpointID 源码

  • 2022-10-20
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haddop CheckpointID 代码

文件路径:/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/checkpoint/CheckpointID.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.mapreduce.checkpoint;

import org.apache.hadoop.io.Writable;

/**
 * This class represent the identified (memento) for a checkpoint. It is allowed
 * to contain small amount of metadata about a checkpoint and must provide
 * sufficient information to the corresponding CheckpointService to locate and
 * retrieve the data contained in the checkpoint.
 */
public interface CheckpointID extends Writable {

}

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