hadoop JournalFaultInjector 源码
haddop JournalFaultInjector 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalFaultInjector.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.qjournal.server;
import java.io.IOException;
import org.apache.hadoop.classification.VisibleForTesting;
import org.apache.hadoop.classification.InterfaceAudience;
/**
* Used for injecting faults in QuorumJournalManager tests.
* Calls into this are a no-op in production code.
*/
@VisibleForTesting
@InterfaceAudience.Private
public class JournalFaultInjector {
public static JournalFaultInjector instance = new JournalFaultInjector();
public static JournalFaultInjector get() {
return instance;
}
public void beforePersistPaxosData() throws IOException {}
public void afterPersistPaxosData() throws IOException {}
}
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