| /* |
| * 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.commons.concurrent.IoTDBThreadPoolFactory; |
| import org.apache.iotdb.commons.concurrent.ThreadName; |
| import org.apache.iotdb.commons.exception.IllegalPathException; |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.commons.service.IService; |
| import org.apache.iotdb.commons.service.ServiceType; |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.engine.StorageEngine; |
| import org.apache.iotdb.db.engine.settle.SettleLog; |
| import org.apache.iotdb.db.engine.settle.SettleTask; |
| import org.apache.iotdb.db.engine.storagegroup.TsFileResource; |
| import org.apache.iotdb.db.exception.StorageEngineException; |
| import org.apache.iotdb.db.exception.WriteProcessException; |
| import org.apache.iotdb.db.tools.settle.TsFileAndModSettleTool; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| public class SettleService implements IService { |
| private static final Logger logger = LoggerFactory.getLogger(SettleService.class); |
| |
| private ExecutorService settleThreadPool; |
| private boolean isRecoverFinish; |
| |
| private static AtomicInteger filesToBeSettledCount = new AtomicInteger(); |
| |
| public static SettleService getINSTANCE() { |
| return InstanceHolder.INSTANCE; |
| } |
| |
| public static class InstanceHolder { |
| private static final SettleService INSTANCE = new SettleService(); |
| |
| private InstanceHolder() {} |
| } |
| |
| @Override |
| public void start() { |
| if (settleThreadPool == null) { |
| int settleThreadNum = IoTDBDescriptor.getInstance().getConfig().getSettleThreadNum(); |
| settleThreadPool = |
| IoTDBThreadPoolFactory.newFixedThreadPool( |
| settleThreadNum, ThreadName.SETTLE_SERVICE.getName()); |
| } |
| TsFileAndModSettleTool.findFilesToBeRecovered(); |
| |
| /* Classify the file paths by the SG, and then call the methods of StorageGroupProcessor of each |
| SG in turn to get the TsFileResources.*/ |
| Map<PartialPath, List<String>> tmpSgResourcesMap = new HashMap<>(); // sgPath -> tsFilePaths |
| try { |
| for (String filePath : TsFileAndModSettleTool.getInstance().recoverSettleFileMap.keySet()) { |
| PartialPath sgPath = getSGByFilePath(filePath); |
| if (tmpSgResourcesMap.containsKey(sgPath)) { |
| List<String> filePaths = tmpSgResourcesMap.get(sgPath); |
| filePaths.add(filePath); |
| tmpSgResourcesMap.put(sgPath, filePaths); |
| } else { |
| List<String> tsFilePaths = new ArrayList<>(); |
| tsFilePaths.add(filePath); |
| tmpSgResourcesMap.put(sgPath, tsFilePaths); |
| } |
| } |
| while (!StorageEngine.getInstance().isAllSgReady()) { |
| // wait for all sg ready |
| } |
| List<TsFileResource> seqResourcesToBeSettled = new ArrayList<>(); |
| List<TsFileResource> unseqResourcesToBeSettled = new ArrayList<>(); |
| for (Map.Entry<PartialPath, List<String>> entry : tmpSgResourcesMap.entrySet()) { |
| try { |
| StorageEngine.getInstance() |
| .getResourcesToBeSettled( |
| entry.getKey(), |
| seqResourcesToBeSettled, |
| unseqResourcesToBeSettled, |
| entry.getValue()); |
| } catch (StorageEngineException e) { |
| e.printStackTrace(); |
| } finally { |
| StorageEngine.getInstance().setSettling(entry.getKey(), false); |
| } |
| } |
| startSettling(seqResourcesToBeSettled, unseqResourcesToBeSettled); |
| setRecoverFinish(true); |
| } catch (WriteProcessException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public void startSettling( |
| List<TsFileResource> seqResourcesToBeSettled, List<TsFileResource> unseqResourcesToBeSettled) |
| throws WriteProcessException { |
| filesToBeSettledCount.addAndGet( |
| seqResourcesToBeSettled.size() + unseqResourcesToBeSettled.size()); |
| if (!SettleLog.createSettleLog() || filesToBeSettledCount.get() == 0) { |
| stop(); |
| return; |
| } |
| logger.info( |
| "Totally find " |
| + (seqResourcesToBeSettled.size() + unseqResourcesToBeSettled.size()) |
| + " tsFiles to be settled."); |
| // settle seqTsFile |
| for (TsFileResource resource : seqResourcesToBeSettled) { |
| resource.readLock(); |
| resource.setSeq(true); |
| submitSettleTask(new SettleTask(resource)); |
| } |
| // settle unseqTsFile |
| for (TsFileResource resource : unseqResourcesToBeSettled) { |
| resource.readLock(); |
| resource.setSeq(false); |
| submitSettleTask(new SettleTask(resource)); |
| } |
| } |
| |
| @Override |
| public void stop() { |
| SettleLog.closeLogWriter(); |
| TsFileAndModSettleTool.clearRecoverSettleFileMap(); |
| filesToBeSettledCount.set(0); |
| if (settleThreadPool != null) { |
| settleThreadPool.shutdownNow(); |
| logger.info("Waiting for settle task pool to shut down"); |
| settleThreadPool = null; |
| logger.info("Settle service stopped"); |
| } |
| } |
| |
| @Override |
| public ServiceType getID() { |
| return ServiceType.SETTLE_SERVICE; |
| } |
| |
| public AtomicInteger getFilesToBeSettledCount() { |
| return filesToBeSettledCount; |
| } |
| |
| public PartialPath getSGByFilePath(String tsFilePath) throws WriteProcessException { |
| PartialPath sgPath = null; |
| try { |
| sgPath = |
| new PartialPath( |
| new File(tsFilePath).getParentFile().getParentFile().getParentFile().getName()); |
| } catch (IllegalPathException e) { |
| throw new WriteProcessException( |
| "Fail to get sg of this tsFile while parsing the file path.", e); |
| } |
| return sgPath; |
| } |
| |
| private void submitSettleTask(SettleTask settleTask) throws WriteProcessException { |
| // settleThreadPool.submit(settleTask); |
| settleTask.settleTsFile(); |
| } |
| |
| public boolean isRecoverFinish() { |
| return isRecoverFinish; |
| } |
| |
| public void setRecoverFinish(boolean recoverFinish) { |
| isRecoverFinish = recoverFinish; |
| } |
| } |