| /* |
| * 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.iotdb.db.service; |
| |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.consensus.DataRegionConsensusImpl; |
| import org.apache.iotdb.db.engine.StorageEngine; |
| import org.apache.iotdb.db.engine.StorageEngineV2; |
| import org.apache.iotdb.db.engine.compaction.CompactionTaskManager; |
| import org.apache.iotdb.db.metadata.schemaregion.SchemaEngineMode; |
| import org.apache.iotdb.db.utils.MemUtils; |
| import org.apache.iotdb.db.wal.WALManager; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class IoTDBShutdownHook extends Thread { |
| |
| private static final Logger logger = LoggerFactory.getLogger(IoTDBShutdownHook.class); |
| |
| @Override |
| public void run() { |
| CompactionTaskManager.getInstance().stop(); |
| // close rocksdb if possible to avoid lose data |
| if (SchemaEngineMode.valueOf(IoTDBDescriptor.getInstance().getConfig().getSchemaEngineMode()) |
| .equals(SchemaEngineMode.Rocksdb_based)) { |
| IoTDB.configManager.clear(); |
| } |
| |
| // == flush data to Tsfile and remove WAL log files |
| if (IoTDBDescriptor.getInstance().getConfig().isMppMode()) { |
| if (!IoTDBDescriptor.getInstance().getConfig().isClusterMode()) { |
| StorageEngineV2.getInstance().syncCloseAllProcessor(); |
| } |
| } else { |
| StorageEngine.getInstance().syncCloseAllProcessor(); |
| } |
| WALManager.getInstance().deleteOutdatedWALFiles(); |
| |
| if (IoTDB.isClusterMode()) { |
| // This setting ensures that compaction work is not discarded |
| // even if there are frequent restarts |
| DataRegionConsensusImpl.getInstance() |
| .getAllConsensusGroupIds() |
| .forEach(id -> DataRegionConsensusImpl.getInstance().triggerSnapshot(id)); |
| } |
| |
| if (logger.isInfoEnabled()) { |
| logger.info( |
| "IoTDB exits. Jvm memory usage: {}", |
| MemUtils.bytesCntToStr( |
| Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory())); |
| } |
| } |
| } |