| /** |
| * 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.yarn.server.api; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.yarn.client.RMProxy; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| |
| import com.google.common.base.Preconditions; |
| |
| public class ServerRMProxy<T> extends RMProxy<T> { |
| private static final Log LOG = LogFactory.getLog(ServerRMProxy.class); |
| |
| private ServerRMProxy() { |
| super(); |
| } |
| |
| /** |
| * Create a proxy to the ResourceManager for the specified protocol. |
| * @param configuration Configuration with all the required information. |
| * @param protocol Server protocol for which proxy is being requested. |
| * @param <T> Type of proxy. |
| * @return Proxy to the ResourceManager for the specified server protocol. |
| * @throws IOException |
| */ |
| public static <T> T createRMProxy(final Configuration configuration, |
| final Class<T> protocol) throws IOException { |
| long rmConnectWait = |
| configuration.getLong( |
| YarnConfiguration.RESOURCEMANAGER_CONNECT_MAX_WAIT_MS, |
| YarnConfiguration.DEFAULT_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS); |
| long rmRetryInterval = |
| configuration.getLong( |
| YarnConfiguration.RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS, |
| YarnConfiguration |
| .DEFAULT_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS); |
| long nmRmConnectWait = |
| configuration.getLong( |
| YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_MAX_WAIT_MS, |
| rmConnectWait); |
| long nmRmRetryInterval = |
| configuration.getLong( |
| YarnConfiguration.NM_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS, |
| rmRetryInterval); |
| ServerRMProxy<T> serverRMProxy = new ServerRMProxy<>(); |
| return createRMProxy(configuration, protocol, serverRMProxy, |
| nmRmConnectWait, nmRmRetryInterval); |
| } |
| |
| @InterfaceAudience.Private |
| @Override |
| public InetSocketAddress getRMAddress(YarnConfiguration conf, |
| Class<?> protocol) { |
| if (protocol == ResourceTracker.class) { |
| return conf.getSocketAddr( |
| YarnConfiguration.RM_RESOURCE_TRACKER_ADDRESS, |
| YarnConfiguration.DEFAULT_RM_RESOURCE_TRACKER_ADDRESS, |
| YarnConfiguration.DEFAULT_RM_RESOURCE_TRACKER_PORT); |
| } else if (protocol == DistributedSchedulingAMProtocol.class) { |
| return conf.getSocketAddr(YarnConfiguration.RM_SCHEDULER_ADDRESS, |
| YarnConfiguration.DEFAULT_RM_SCHEDULER_ADDRESS, |
| YarnConfiguration.DEFAULT_RM_SCHEDULER_PORT); |
| } else { |
| String message = "Unsupported protocol found when creating the proxy " + |
| "connection to ResourceManager: " + |
| ((protocol != null) ? protocol.getClass().getName() : "null"); |
| LOG.error(message); |
| throw new IllegalStateException(message); |
| } |
| } |
| |
| @InterfaceAudience.Private |
| @Override |
| public void checkAllowedProtocols(Class<?> protocol) { |
| Preconditions.checkArgument( |
| protocol.isAssignableFrom(ResourceTracker.class), |
| "ResourceManager does not support this protocol"); |
| } |
| } |