hadoop InconsistentS3ClientFactory 源码
haddop InconsistentS3ClientFactory 代码
文件路径:/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/InconsistentS3ClientFactory.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.fs.s3a;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.services.s3.AmazonS3;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* S3 Client factory used for testing with eventual consistency fault injection.
* This client is for testing <i>only</i>; it is in the production
* {@code hadoop-aws} module to enable integration tests to use this
* just by editing the Hadoop configuration used to bring up the client.
*
* The factory uses the older constructor-based instantiation/configuration
* of the client, so does not wire up metrics, handlers etc.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class InconsistentS3ClientFactory extends DefaultS3ClientFactory {
@Override
protected AmazonS3 buildAmazonS3Client(
final ClientConfiguration awsConf,
final S3ClientCreationParameters parameters) {
LOG.warn("** FAILURE INJECTION ENABLED. Do not run in production! **");
LOG.warn("List inconsistency is no longer emulated; only throttling and read errors");
InconsistentAmazonS3Client s3
= new InconsistentAmazonS3Client(
parameters.getCredentialSet(), awsConf, getConf());
configureAmazonS3Client(s3,
parameters.getEndpoint(),
parameters.isPathStyleAccess());
return s3;
}
}
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