org.apache.twill.internal.yarn.YarnNMClient Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.twill.internal.yarn;
import org.apache.twill.common.Cancellable;
/**
* Abstraction for dealing with API differences in different hadoop yarn version.
*/
public interface YarnNMClient {
/**
* Starts a process based on the given launch context.
*
* @param containerInfo The containerInfo that the new process will launch in.
* @param launchContext Contains information about the process going to start.
* @return A {@link Cancellable} that when {@link Cancellable#cancel()}} is invoked,
* it will try to shutdown the process.
*
*/
Cancellable start(YarnContainerInfo containerInfo, YarnLaunchContext launchContext);
}