/**
* 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.whirr.service.yarn;
import static org.jclouds.scriptbuilder.domain.Statements.call;
import java.io.IOException;
import org.apache.commons.configuration.Configuration;
import org.apache.whirr.ClusterSpec;
import org.apache.whirr.service.ClusterActionEvent;
public class MapReduceJobHistoryServerHandler extends YarnHandler {
public static final String ROLE = "mapreduce-historyserver";
@Override
public String getRole() {
return ROLE;
}
@Override
protected void beforeConfigure(ClusterActionEvent event) throws IOException,
InterruptedException {
ClusterSpec clusterSpec = event.getClusterSpec();
Configuration conf = getConfiguration(clusterSpec);
handleFirewallRules(event);
addStatement(event, call(getStartFunction(conf, "mr_jobhistory", "start_mr_jobhistory"), "historyserver"));
}
}