| /* |
| * 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.samza.clustermanager; |
| |
| import java.util.List; |
| import org.apache.samza.SamzaException; |
| import org.apache.samza.application.SamzaApplication; |
| import org.apache.samza.application.descriptors.ApplicationDescriptor; |
| import org.apache.samza.application.descriptors.ApplicationDescriptorImpl; |
| import org.apache.samza.application.descriptors.ApplicationDescriptorUtil; |
| import org.apache.samza.config.Config; |
| import org.apache.samza.config.JobConfig; |
| import org.apache.samza.config.MapConfig; |
| import org.apache.samza.coordinator.metadatastore.CoordinatorStreamStore; |
| import org.apache.samza.execution.RemoteJobPlanner; |
| import org.apache.samza.metadatastore.MetadataStore; |
| import org.apache.samza.metrics.MetricsRegistryMap; |
| import org.apache.samza.util.CoordinatorStreamUtil; |
| import org.apache.samza.util.DiagnosticsUtil; |
| |
| |
| /** |
| * Util class to launch and run {@link ClusterBasedJobCoordinator}. |
| * This util is being used by both high/low and beam API Samza jobs. |
| */ |
| public class JobCoordinatorLaunchUtil { |
| /** |
| * Run {@link ClusterBasedJobCoordinator} with full job config. |
| * |
| * @param app SamzaApplication to run. |
| * @param config full job config. |
| */ |
| @SuppressWarnings("rawtypes") |
| public static void run(SamzaApplication app, Config config) { |
| // Execute planning |
| ApplicationDescriptorImpl<? extends ApplicationDescriptor> |
| appDesc = ApplicationDescriptorUtil.getAppDescriptor(app, config); |
| RemoteJobPlanner planner = new RemoteJobPlanner(appDesc); |
| List<JobConfig> jobConfigs = planner.prepareJobs(); |
| |
| if (jobConfigs.size() != 1) { |
| throw new SamzaException("Only support single remote job is supported."); |
| } |
| |
| Config fullConfig = jobConfigs.get(0); |
| // Create coordinator stream if does not exist before fetching launch config from it. |
| CoordinatorStreamUtil.createCoordinatorStream(fullConfig); |
| MetricsRegistryMap metrics = new MetricsRegistryMap(); |
| MetadataStore |
| metadataStore = new CoordinatorStreamStore(CoordinatorStreamUtil.buildCoordinatorStreamConfig(fullConfig), metrics); |
| // MetadataStore will be closed in ClusterBasedJobCoordinator#onShutDown |
| // initialization of MetadataStore can be moved to ClusterBasedJobCoordinator after we clean up |
| // ClusterBasedJobCoordinator#createFromMetadataStore |
| metadataStore.init(); |
| // Reads extra launch config from metadata store. |
| Config launchConfig = CoordinatorStreamUtil.readLaunchConfigFromCoordinatorStream(fullConfig, metadataStore); |
| Config finalConfig = new MapConfig(launchConfig, fullConfig); |
| |
| // This needs to be consistent with RemoteApplicationRunner#run where JobRunner#submit to be called instead of JobRunner#run |
| CoordinatorStreamUtil.writeConfigToCoordinatorStream(finalConfig, true); |
| DiagnosticsUtil.createDiagnosticsStream(finalConfig); |
| |
| ClusterBasedJobCoordinator jc = new ClusterBasedJobCoordinator( |
| metrics, |
| metadataStore, |
| finalConfig); |
| jc.run(); |
| } |
| |
| private JobCoordinatorLaunchUtil() {} |
| } |