/*
* 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.twill.internal.appmaster;
import com.google.common.collect.ImmutableMap;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.util.Records;
import org.apache.twill.internal.Constants;
import org.apache.twill.internal.EnvKeys;
import org.apache.twill.internal.ProcessController;
import org.apache.twill.internal.yarn.AbstractYarnProcessLauncher;
import org.apache.twill.internal.yarn.YarnLaunchContext;
import org.apache.twill.internal.yarn.YarnUtils;
import java.util.Map;
/**
* A {@link org.apache.twill.internal.ProcessLauncher} for launching Application Master from the client.
*/
public final class ApplicationMasterProcessLauncher extends AbstractYarnProcessLauncher<ApplicationId> {
private final ApplicationSubmitter submitter;
public ApplicationMasterProcessLauncher(ApplicationId appId, ApplicationSubmitter submitter) {
super(appId);
this.submitter = submitter;
}
@Override
protected boolean useArchiveSuffix() {
return false;
}
@Override
@SuppressWarnings("unchecked")
protected <R> ProcessController<R> doLaunch(YarnLaunchContext launchContext) {
final ApplicationId appId = getContainerInfo();
// Set the resource requirement for AM
Resource capability = Records.newRecord(Resource.class);
capability.setMemory(Constants.APP_MASTER_MEMORY_MB);
YarnUtils.setVirtualCores(capability, 1);
// Put in extra environments
Map<String, String> env = ImmutableMap.<String, String>builder()
.putAll(launchContext.getEnvironment())
.put(EnvKeys.YARN_APP_ID, Integer.toString(appId.getId()))
.put(EnvKeys.YARN_APP_ID_CLUSTER_TIME, Long.toString(appId.getClusterTimestamp()))
.put(EnvKeys.YARN_APP_ID_STR, appId.toString())
.put(EnvKeys.YARN_CONTAINER_MEMORY_MB, Integer.toString(Constants.APP_MASTER_MEMORY_MB))
.put(EnvKeys.YARN_CONTAINER_VIRTUAL_CORES, Integer.toString(YarnUtils.getVirtualCores(capability)))
.build();
launchContext.setEnvironment(env);
return (ProcessController<R>) submitter.submit(launchContext, capability);
}
}