| /** |
| * 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.yarn.server.timelineservice.storage; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.conf.Configured; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnRuntimeException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This creates the timeline schema for storing application timeline |
| * information. Each backend has to implement the {@link SchemaCreator} for |
| * creating the schema in its backend and should be configured in yarn-site.xml. |
| */ |
| public class TimelineSchemaCreator extends Configured implements Tool { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(TimelineSchemaCreator.class); |
| |
| public static void main(String[] args) { |
| try { |
| int status = ToolRunner.run(new YarnConfiguration(), |
| new TimelineSchemaCreator(), args); |
| System.exit(status); |
| } catch (Exception e) { |
| LOG.error("Error while creating Timeline Schema : ", e); |
| } |
| } |
| |
| @Override |
| public int run(String[] args) throws Exception { |
| Configuration conf = getConf(); |
| return createTimelineSchema(args, conf); |
| } |
| |
| @VisibleForTesting |
| int createTimelineSchema(String[] args, Configuration conf) throws Exception { |
| String schemaCreatorClassName = conf.get( |
| YarnConfiguration.TIMELINE_SERVICE_SCHEMA_CREATOR_CLASS, |
| YarnConfiguration.DEFAULT_TIMELINE_SERVICE_SCHEMA_CREATOR_CLASS); |
| LOG.info("Using {} for creating Timeline Service Schema ", |
| schemaCreatorClassName); |
| try { |
| Class<?> schemaCreatorClass = Class.forName(schemaCreatorClassName); |
| if (SchemaCreator.class.isAssignableFrom(schemaCreatorClass)) { |
| SchemaCreator schemaCreator = (SchemaCreator) ReflectionUtils |
| .newInstance(schemaCreatorClass, conf); |
| schemaCreator.createTimelineSchema(args); |
| return 0; |
| } else { |
| throw new YarnRuntimeException("Class: " + schemaCreatorClassName |
| + " not instance of " + SchemaCreator.class.getCanonicalName()); |
| } |
| } catch (ClassNotFoundException e) { |
| throw new YarnRuntimeException("Could not instantiate TimelineReader: " |
| + schemaCreatorClassName, e); |
| } |
| } |
| } |