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YARN-2882. Add an OPPORTUNISTIC ExecutionType. (Konstantinos Karanaso…
…s and Inigo Goiri via kasha) (cherry picked from commit fb00794)
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...-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ExecutionType.java
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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. | ||
*/ | ||
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package org.apache.hadoop.yarn.api.records; | ||
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import org.apache.hadoop.classification.InterfaceAudience.Public; | ||
import org.apache.hadoop.classification.InterfaceStability.Evolving; | ||
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/** | ||
* Container property encoding execution semantics. | ||
* | ||
* <p> | ||
* The execution types are the following: | ||
* <ul> | ||
* <li>{@link #GUARANTEED} - this container is guaranteed to start its | ||
* execution, once the corresponding start container request is received by | ||
* an NM. | ||
* <li>{@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. | ||
* </ul> | ||
*/ | ||
@Public | ||
@Evolving | ||
public enum ExecutionType { | ||
GUARANTEED, OPPORTUNISTIC | ||
} |
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