| |
| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ozone.container.keyvalue.statemachine.background; |
| |
| import org.apache.hadoop.hdds.utils.BackgroundService; |
| import org.apache.hadoop.hdds.utils.BackgroundTask; |
| import org.apache.hadoop.hdds.utils.BackgroundTaskQueue; |
| import org.apache.hadoop.hdds.utils.BackgroundTaskResult; |
| import org.apache.hadoop.ozone.container.common.impl.ContainerSet; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * A per-datanode container stale recovering container scrubbing service |
| * takes in charge of deleting stale recovering containers. |
| */ |
| |
| public class StaleRecoveringContainerScrubbingService |
| extends BackgroundService { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(StaleRecoveringContainerScrubbingService.class); |
| |
| private final ContainerSet containerSet; |
| |
| public StaleRecoveringContainerScrubbingService( |
| long interval, TimeUnit unit, int threadPoolSize, |
| long serviceTimeout, ContainerSet containerSet) { |
| super("StaleRecoveringContainerScrubbingService", |
| interval, unit, threadPoolSize, serviceTimeout); |
| this.containerSet = containerSet; |
| |
| } |
| |
| @Override |
| public BackgroundTaskQueue getTasks() { |
| BackgroundTaskQueue backgroundTaskQueue = |
| new BackgroundTaskQueue(); |
| long currentTime = containerSet.getCurrentTime(); |
| Iterator<Map.Entry<Long, Long>> it = |
| containerSet.getRecoveringContainerIterator(); |
| while (it.hasNext()) { |
| Map.Entry<Long, Long> entry = it.next(); |
| if (currentTime >= entry.getKey()) { |
| backgroundTaskQueue.add(new RecoveringContainerScrubbingTask( |
| containerSet, entry.getValue())); |
| it.remove(); |
| } else { |
| break; |
| } |
| } |
| return backgroundTaskQueue; |
| } |
| |
| static class RecoveringContainerScrubbingTask implements BackgroundTask { |
| private final ContainerSet containerSet; |
| private final long containerID; |
| |
| RecoveringContainerScrubbingTask( |
| ContainerSet containerSet, long containerID) { |
| this.containerSet = containerSet; |
| this.containerID = containerID; |
| } |
| |
| @Override |
| public BackgroundTaskResult call() throws Exception { |
| containerSet.getContainer(containerID).delete(); |
| containerSet.removeContainer(containerID); |
| LOG.info("Delete stale recovering container {}", containerID); |
| return new BackgroundTaskResult.EmptyTaskResult(); |
| } |
| } |
| } |