XComp commented on a change in pull request #14847: URL: https://github.com/apache/flink/pull/14847#discussion_r580901980
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/stopwithsavepoint/StopWithSavepointTerminationHandlerImpl.java ########## @@ -0,0 +1,297 @@ +/* + * 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.flink.runtime.scheduler.stopwithsavepoint; + +import org.apache.flink.annotation.VisibleForTesting; +import org.apache.flink.api.common.JobID; +import org.apache.flink.runtime.checkpoint.CheckpointScheduling; +import org.apache.flink.runtime.checkpoint.CompletedCheckpoint; +import org.apache.flink.runtime.execution.ExecutionState; +import org.apache.flink.runtime.scheduler.SchedulerNG; +import org.apache.flink.util.FlinkException; + +import org.apache.commons.lang3.StringUtils; +import org.slf4j.Logger; + +import java.util.Collection; +import java.util.Set; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.Executor; +import java.util.stream.Collectors; + +import static org.apache.flink.util.Preconditions.checkArgument; +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * {@code StopWithSavepointTerminationHandlerImpl} implements {@link + * StopWithSavepointTerminationHandler}. + * + * <p>The operation only succeeds if both steps, the savepoint creation and the successful + * termination of the job, succeed. If the former step fails, the operation fails exceptionally + * without any further actions. If the latter one fails, a global fail-over is triggered before + * failing the operation. + */ +public class StopWithSavepointTerminationHandlerImpl + implements StopWithSavepointTerminationHandler { + + private final Logger log; + + private final SchedulerNG scheduler; + private final CheckpointScheduling checkpointScheduling; + private final JobID jobId; + private final Executor ioExecutor; + + private final CompletableFuture<String> result = new CompletableFuture<>(); + + private State state = new WaitingForSavepoint(); + + public <S extends SchedulerNG & CheckpointScheduling> StopWithSavepointTerminationHandlerImpl( + JobID jobId, S schedulerWithCheckpointing, Executor ioExecutor, Logger log) { + this(jobId, schedulerWithCheckpointing, schedulerWithCheckpointing, ioExecutor, log); + } + + @VisibleForTesting + StopWithSavepointTerminationHandlerImpl( + JobID jobId, + SchedulerNG scheduler, + CheckpointScheduling checkpointScheduling, + Executor ioExecutor, + Logger log) { + this.jobId = checkNotNull(jobId); + this.scheduler = checkNotNull(scheduler); + this.checkpointScheduling = checkNotNull(checkpointScheduling); + this.ioExecutor = checkNotNull(ioExecutor); + this.log = checkNotNull(log); + } + + @Override + public CompletableFuture<String> getSavepointPath() { + return result; + } + + @Override + public void handleSavepointCreation( Review comment: I realized that I refactor the corresponding `StopWithSavepointTerminationManagerTest` accordingly. We don't need all the different test cases there. I'm fixing this now. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
