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HDFS-17362. RBF: Implement RouterObserverReadConfiguredFailoverProxyP…
…rovider (#6510) Co-authored-by: Chunyi Yang <[email protected]> Co-authored-by: Takanobu Asanuma <[email protected]> Reviewed-by: Simbarashe Dzinamarira <[email protected]>
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...che/hadoop/hdfs/server/namenode/ha/RouterObserverReadConfiguredFailoverProxyProvider.java
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/** | ||
* 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 | ||
* <p> | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* <p> | ||
* 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.ha; | ||
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import java.net.URI; | ||
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import org.slf4j.Logger; | ||
import org.slf4j.LoggerFactory; | ||
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import org.apache.hadoop.classification.VisibleForTesting; | ||
import org.apache.hadoop.conf.Configuration; | ||
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/** | ||
* A {@link org.apache.hadoop.io.retry.FailoverProxyProvider} implementation | ||
* to support automatic msync-ing when using routers. | ||
* <p> | ||
* This constructs a wrapper proxy of ConfiguredFailoverProxyProvider, | ||
* and allows to configure logical names for nameservices. | ||
*/ | ||
public class RouterObserverReadConfiguredFailoverProxyProvider<T> | ||
extends RouterObserverReadProxyProvider<T> { | ||
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@VisibleForTesting | ||
static final Logger LOG = | ||
LoggerFactory.getLogger(RouterObserverReadConfiguredFailoverProxyProvider.class); | ||
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public RouterObserverReadConfiguredFailoverProxyProvider(Configuration conf, URI uri, | ||
Class<T> xface, HAProxyFactory<T> factory) { | ||
super(conf, uri, xface, factory, | ||
new ConfiguredFailoverProxyProvider<>(conf, uri, xface, factory)); | ||
} | ||
} |
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