phet commented on code in PR #3938: URL: https://github.com/apache/gobblin/pull/3938#discussion_r1594899119
########## gobblin-service/src/main/java/org/apache/gobblin/service/modules/orchestration/proc/ResumeDagProc.java: ########## @@ -0,0 +1,111 @@ +/* + * 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.proc; + +import java.io.IOException; +import java.util.Map; +import java.util.Optional; +import java.util.Set; + +import com.google.common.collect.Maps; + +import lombok.extern.slf4j.Slf4j; + +import org.apache.gobblin.metrics.event.TimingEvent; +import org.apache.gobblin.service.ExecutionStatus; +import org.apache.gobblin.service.modules.flowgraph.Dag; +import org.apache.gobblin.service.modules.orchestration.DagManagementStateStore; +import org.apache.gobblin.service.modules.orchestration.DagManagerUtils; +import org.apache.gobblin.service.modules.orchestration.TimingEventUtils; +import org.apache.gobblin.service.modules.orchestration.task.ResumeDagTask; +import org.apache.gobblin.service.modules.spec.JobExecutionPlan; + +import static org.apache.gobblin.service.ExecutionStatus.CANCELLED; +import static org.apache.gobblin.service.ExecutionStatus.FAILED; +import static org.apache.gobblin.service.ExecutionStatus.PENDING_RESUME; + + +/** + * An implementation for {@link DagProc} that resumes a dag and submits the job that failed/killed previously. + */ +@Slf4j +public class ResumeDagProc extends DagProc<Optional<Dag<JobExecutionPlan>>> { + + public ResumeDagProc(ResumeDagTask resumeDagTask) { + super(resumeDagTask); + } + + @Override + protected Optional<Dag<JobExecutionPlan>> initialize(DagManagementStateStore dagManagementStateStore) + throws IOException { + return dagManagementStateStore.getFailedDag(getDagId()); + } + + @Override + protected void act(DagManagementStateStore dagManagementStateStore, Optional<Dag<JobExecutionPlan>> dag) + throws IOException { + log.info("Request to resume dag {}", getDagId()); + + if (!dag.isPresent()) { + // todo - add a metric here + log.error("Dag " + dagId + " was not found in dag state store"); + return; + } + + long flowResumeTime = System.currentTimeMillis(); + + // Set the flow and its failed or cancelled nodes to PENDING_RESUME so that the flow will be resumed from the point before it failed + DagManagerUtils.emitFlowEvent(eventSubmitter, dag.get(), TimingEvent.FlowTimings.FLOW_PENDING_RESUME); + + for (Dag.DagNode<JobExecutionPlan> node : dag.get().getNodes()) { + ExecutionStatus executionStatus = node.getValue().getExecutionStatus(); + if (executionStatus.equals(FAILED) || executionStatus.equals(CANCELLED)) { + node.getValue().setExecutionStatus(PENDING_RESUME); + // reset currentAttempts because we do not want to count previous execution's attempts in deciding whether to retry a job + node.getValue().setCurrentAttempts(0); + DagManagerUtils.incrementJobGeneration(node); Review Comment: glad to see the comment, and would be better if contextualizing the currentAttempts "reset" when mentioning the "generation" increment -- 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]
