org.apache.hadoop.yarn.api.records.ExecutionType 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,
* 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.Evolving;
/**
* Container property encoding execution semantics.
*
*
* The execution types are the following:
*
* - {@link #GUARANTEED} - this container is guaranteed to start its
* execution, once the corresponding start container request is received by
* an NM.
*
- {@link #OPPORTUNISTIC} - the execution of this container may not start
* immediately at the NM that receives the corresponding start container
* request (depending on the NM's available resources). Moreover, it may be
* preempted if it blocks a GUARANTEED container from being executed.
*
*/
@Public
@Evolving
public enum ExecutionType {
GUARANTEED, OPPORTUNISTIC
}