hadoop HAProxyFactory 源码

  • 2022-10-20
  • 浏览 (16)

haddop HAProxyFactory 代码

文件路径:/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/HAProxyFactory.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.ha;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.AlignmentContext;
import org.apache.hadoop.security.UserGroupInformation;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.concurrent.atomic.AtomicBoolean;

/**
 * This interface aims to decouple the proxy creation implementation that used
 * in {@link AbstractNNFailoverProxyProvider}. Client side can use
 * {@link org.apache.hadoop.hdfs.protocol.ClientProtocol} to initialize the
 * proxy while the server side can use NamenodeProtocols
 */
@InterfaceAudience.Private
public interface HAProxyFactory<T> {

  T createProxy(Configuration conf, InetSocketAddress nnAddr, Class<T> xface,
      UserGroupInformation ugi, boolean withRetries,
      AtomicBoolean fallbackToSimpleAuth) throws IOException;

  T createProxy(Configuration conf, InetSocketAddress nnAddr, Class<T> xface,
      UserGroupInformation ugi, boolean withRetries) throws IOException;

  /**
   * Set the alignment context to be used when creating new proxies using
   * this factory. Not all implementations will use this alignment context.
   */
  default void setAlignmentContext(AlignmentContext alignmentContext) {
    // noop
  }

}

相关信息

hadoop 源码目录

相关文章

hadoop AbstractNNFailoverProxyProvider 源码

hadoop ClientHAProxyFactory 源码

hadoop ConfiguredFailoverProxyProvider 源码

hadoop IPFailoverProxyProvider 源码

hadoop InMemoryAliasMapFailoverProxyProvider 源码

hadoop ObserverReadProxyProvider 源码

hadoop ObserverReadProxyProviderWithIPFailover 源码

hadoop ReadOnly 源码

hadoop RequestHedgingProxyProvider 源码

hadoop WrappedFailoverProxyProvider 源码

0  赞