hadoop HadoopYarnProtoRPC 源码
haddop HadoopYarnProtoRPC 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/ipc/HadoopYarnProtoRPC.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.yarn.ipc;
import java.net.InetSocketAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.Server;
import org.apache.hadoop.security.token.SecretManager;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.yarn.factory.providers.RpcFactoryProvider;
/**
* This uses Hadoop RPC. Uses a tunnel ProtoSpecificRpcEngine over
* Hadoop connection.
* This does not give cross-language wire compatibility, since the Hadoop
* RPC wire format is non-standard, but it does permit use of Protocol Buffers
* protocol versioning features for inter-Java RPCs.
*/
@InterfaceAudience.LimitedPrivate({ "MapReduce", "YARN" })
public class HadoopYarnProtoRPC extends YarnRPC {
private static final Logger LOG =
LoggerFactory.getLogger(HadoopYarnProtoRPC.class);
@Override
public Object getProxy(Class protocol, InetSocketAddress addr,
Configuration conf) {
LOG.debug("Creating a HadoopYarnProtoRpc proxy for protocol {}", protocol);
return RpcFactoryProvider.getClientFactory(conf).getClient(protocol, 1,
addr, conf);
}
@Override
public void stopProxy(Object proxy, Configuration conf) {
RpcFactoryProvider.getClientFactory(conf).stopClient(proxy);
}
@Override
public Server getServer(Class protocol, Object instance,
InetSocketAddress addr, Configuration conf,
SecretManager<? extends TokenIdentifier> secretManager,
int numHandlers, String portRangeConfig) {
LOG.debug("Creating a HadoopYarnProtoRpc server for protocol {} with {}"
+ " handlers", protocol, numHandlers);
return RpcFactoryProvider.getServerFactory(conf).getServer(protocol,
instance, addr, conf, secretManager, numHandlers, portRangeConfig);
}
}
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