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    
019    package org.apache.hadoop.yarn.client;
020    
021    import java.net.InetSocketAddress;
022    
023    import org.apache.hadoop.classification.InterfaceAudience.Public;
024    import org.apache.hadoop.classification.InterfaceStability.Unstable;
025    import org.apache.hadoop.conf.Configuration;
026    import org.apache.hadoop.io.retry.RetryPolicy;
027    import org.apache.hadoop.security.UserGroupInformation;
028    import org.apache.hadoop.yarn.conf.YarnConfiguration;
029    import org.apache.hadoop.yarn.ipc.YarnRPC;
030    
031    @Public
032    @Unstable
033    public class NMProxy extends ServerProxy {
034    
035      public static <T> T createNMProxy(final Configuration conf,
036          final Class<T> protocol, final UserGroupInformation ugi,
037          final YarnRPC rpc, final InetSocketAddress serverAddress) {
038    
039        RetryPolicy retryPolicy =
040            createRetryPolicy(conf,
041              YarnConfiguration.CLIENT_NM_CONNECT_MAX_WAIT_MS,
042              YarnConfiguration.DEFAULT_CLIENT_NM_CONNECT_MAX_WAIT_MS,
043              YarnConfiguration.CLIENT_NM_CONNECT_RETRY_INTERVAL_MS,
044              YarnConfiguration.DEFAULT_CLIENT_NM_CONNECT_RETRY_INTERVAL_MS);
045    
046        return createRetriableProxy(conf, protocol, ugi, rpc, serverAddress,
047          retryPolicy);
048      }
049    }