Java tutorial
/** * 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.mapreduce; import org.apache.hadoop.classification.InterfaceAudience; import org.apache.hadoop.classification.InterfaceStability; /** * Used to describe the priority of the running job. * DEFAULT : While submitting a job, if the user is not specifying priority, * YARN has the capability to pick the default priority as per its config. * Hence MapReduce can indicate such cases with this new enum. * UNDEFINED_PRIORITY : YARN supports priority as an integer. Hence other than * the five defined enums, YARN can consider other integers also. To generalize * such cases, this specific enum is used. */ @InterfaceAudience.Public @InterfaceStability.Evolving public enum JobPriority { VERY_HIGH, HIGH, NORMAL, LOW, VERY_LOW, DEFAULT, UNDEFINED_PRIORITY; }