/**
* 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.api.records;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
/**
* Command sent by the Resource Manager to the Application Master in the
* AllocateResponse
* @see AllocateResponse
*/
@Public
@Unstable
public enum AMCommand {
/**
* Sent by Resource Manager when it is out of sync with the AM and wants the
* AM get back in sync.
*/
AM_RESYNC,
/**
* Sent by Resource Manager when it wants the AM to shutdown. Eg. when the
* node is going down for maintenance. The AM should save any state and
* prepare to be restarted at a later time.
*/
AM_SHUTDOWN
}