hadoop CheckpointFaultInjector 源码
haddop CheckpointFaultInjector 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/CheckpointFaultInjector.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.namenode;
import java.io.File;
import java.io.IOException;
/**
* Utility class to faciliate some fault injection tests for the checkpointing
* process.
*/
public class CheckpointFaultInjector {
public static CheckpointFaultInjector instance =
new CheckpointFaultInjector();
public static CheckpointFaultInjector getInstance() {
return instance;
}
public static void set(CheckpointFaultInjector instance) {
CheckpointFaultInjector.instance = instance;
}
public void beforeGetImageSetsHeaders() throws IOException {}
public void afterSecondaryCallsRollEditLog() throws IOException {}
public void duringMerge() throws IOException {}
public void afterSecondaryUploadsNewImage() throws IOException {}
public void aboutToSendFile(File localfile) throws IOException {}
public boolean shouldSendShortFile(File localfile) {
return false;
}
public boolean shouldCorruptAByte(File localfile) {
return false;
}
public void afterMD5Rename() throws IOException {}
public void beforeEditsRename() throws IOException {}
public void duringUploadInProgess() throws InterruptedException, IOException {
}
}
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