phet commented on code in PR #3776: URL: https://github.com/apache/gobblin/pull/3776#discussion_r1326644562
########## gobblin-service/src/main/java/org/apache/gobblin/service/modules/orchestration/DagManagementStateStore.java: ########## @@ -0,0 +1,86 @@ +/* + * 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.gobblin.service.modules.orchestration; + +import java.io.IOException; +import java.util.HashMap; +import java.util.HashSet; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; +import java.util.Set; + +import com.google.common.base.Optional; +import com.google.common.collect.Lists; + +import lombok.Getter; + +import org.apache.gobblin.runtime.api.DagActionStore; +import org.apache.gobblin.service.modules.flowgraph.Dag; +import org.apache.gobblin.service.modules.spec.JobExecutionPlan; + + +/** + * An implementation of {@link DagStateStore} to provide information about dags, dag nodes and their job states. + * Currently, this store maintains and utilizes in-memory references about dags and their job states and is used + * to determine what the current status of the {@link Dag} and/or {@link Dag.DagNode} is and what actions needs to be + * taken next likewise mark it as: complete, failed, sla breached or simply clean up after completion. + * Going forward, each of these in-memory references will be read/write from MySQL store. + * Thus, the {@link DagManager} would then be stateless and operate independently. + */ +@Getter +@WorkInProgress +public class DagManagementStateStore { + private final Map<Dag.DagNode<JobExecutionPlan>, Dag<JobExecutionPlan>> jobToDag = new HashMap<>(); + private final Map<String, Dag<JobExecutionPlan>> dags = new HashMap<>(); + private final Set<String> failedDagIds = new HashSet<>(); + private final Map<String, Dag<JobExecutionPlan>> resumingDags = new HashMap<>(); + // dagToJobs holds a map of dagId to running jobs of that dag + final Map<String, LinkedList<Dag.DagNode<JobExecutionPlan>>> dagToJobs = new HashMap<>(); + final Map<String, Long> dagToSLA = new HashMap<>(); + private final Set<String> dagIdstoClean = new HashSet<>(); + private Optional<DagActionStore> dagActionStore; + + protected void deleteJobState(String dagId, Dag.DagNode<JobExecutionPlan> dagNode) { Review Comment: these methods should likely be `synchronized`, to prevent reads during in-flux updates, where some collections are changed, though not yet all -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
