/**
* 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.mapred;
import org.apache.hadoop.conf.Configuration;
/**
* Job submission policies. The set of policies is closed and encapsulated in
* {@link SimulatorJobSubmissionPolicy}. The handling of submission policies is
* embedded in the {@link SimulatorEngine} (through various events).
*
*/
public enum SimulatorJobSubmissionPolicy {
/**
* replay the trace by following the job inter-arrival rate faithfully.
*/
REPLAY,
/**
* ignore submission time, keep submitting jobs until the cluster is saturated.
*/
STRESS,
/**
* submitting jobs sequentially.
*/
SERIAL;
public static final String JOB_SUBMISSION_POLICY = "mumak.job-submission.policy";
static public SimulatorJobSubmissionPolicy getPolicy(Configuration conf) {
String policy = conf.get(JOB_SUBMISSION_POLICY, REPLAY.name());
return valueOf(policy.toUpperCase());
}
}