hadoop LinuxContainerRuntime 源码
haddop LinuxContainerRuntime 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.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.server.nodemanager.containermanager.linux.runtime;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.server.nodemanager.Context;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerExecutionException;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntime;
import java.io.IOException;
import java.util.Map;
/**
* Linux-specific container runtime implementations must implement this
* interface.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface LinuxContainerRuntime extends ContainerRuntime {
/**
* Initialize the runtime.
*
* @param conf the {@link Configuration} to use
* @param nmContext NMContext
* @throws ContainerExecutionException if an error occurs while initializing
* the runtime
*/
void initialize(Configuration conf, Context nmContext) throws ContainerExecutionException;
/**
* Return whether the given environment variables indicate that the operation
* is requesting this runtime.
*
* @param env the environment variable settings for the operation
* @return whether this runtime is requested
*/
boolean isRuntimeRequested(Map<String, String> env);
default void start() {}
default void stop() {}
default Map<String, LocalResource> getLocalResources(Container container)
throws IOException {
return container.getLaunchContext().getLocalResources();
}
}
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