001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.yarn.client;
020
021import java.net.InetSocketAddress;
022
023import org.apache.hadoop.classification.InterfaceAudience.Public;
024import org.apache.hadoop.classification.InterfaceStability.Unstable;
025import org.apache.hadoop.conf.Configuration;
026import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
027import org.apache.hadoop.io.retry.RetryPolicy;
028import org.apache.hadoop.security.UserGroupInformation;
029import org.apache.hadoop.yarn.conf.YarnConfiguration;
030import org.apache.hadoop.yarn.ipc.YarnRPC;
031
032@Public
033@Unstable
034public class NMProxy extends ServerProxy {
035
036  public static <T> T createNMProxy(final Configuration conf,
037      final Class<T> protocol, final UserGroupInformation ugi,
038      final YarnRPC rpc, final InetSocketAddress serverAddress) {
039
040    RetryPolicy retryPolicy =
041        createRetryPolicy(conf,
042          YarnConfiguration.CLIENT_NM_CONNECT_MAX_WAIT_MS,
043          YarnConfiguration.DEFAULT_CLIENT_NM_CONNECT_MAX_WAIT_MS,
044          YarnConfiguration.CLIENT_NM_CONNECT_RETRY_INTERVAL_MS,
045          YarnConfiguration.DEFAULT_CLIENT_NM_CONNECT_RETRY_INTERVAL_MS);
046    Configuration confClone = new Configuration(conf);
047    confClone.setInt(
048        CommonConfigurationKeysPublic.IPC_CLIENT_CONNECT_MAX_RETRIES_KEY, 0);
049    confClone.setInt(CommonConfigurationKeysPublic.
050            IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SOCKET_TIMEOUTS_KEY, 0);
051    return createRetriableProxy(confClone, protocol, ugi, rpc, serverAddress,
052      retryPolicy);
053  }
054}