| /* |
| * 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.storageengine.dataregion.wal.recover.file; |
| |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.db.exception.DataRegionException; |
| import org.apache.iotdb.db.pipe.agent.PipeAgent; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.DeleteDataNode; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertNode; |
| import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowsNode; |
| import org.apache.iotdb.db.storageengine.dataregion.flush.MemTableFlushTask; |
| import org.apache.iotdb.db.storageengine.dataregion.memtable.IMemTable; |
| import org.apache.iotdb.db.storageengine.dataregion.memtable.IWritableMemChunk; |
| import org.apache.iotdb.db.storageengine.dataregion.memtable.IWritableMemChunkGroup; |
| import org.apache.iotdb.db.storageengine.dataregion.modification.Deletion; |
| import org.apache.iotdb.db.storageengine.dataregion.modification.Modification; |
| import org.apache.iotdb.db.storageengine.dataregion.modification.ModificationFile; |
| import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResource; |
| import org.apache.iotdb.db.storageengine.dataregion.wal.buffer.WALEntry; |
| import org.apache.iotdb.db.storageengine.dataregion.wal.exception.WALRecoverException; |
| import org.apache.iotdb.db.storageengine.dataregion.wal.utils.listener.WALRecoverListener; |
| |
| import org.apache.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.tsfile.file.metadata.IDeviceID; |
| import org.apache.tsfile.write.writer.RestorableTsFileIOWriter; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ExecutionException; |
| import java.util.function.Consumer; |
| |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FILE_NAME_SEPARATOR; |
| |
| /** |
| * This class is used to help recover all unsealed TsFiles at zero level. There are 3 main |
| * procedures: start recovery, redo logs, and end recovery, you must call them in order. Notice: |
| * This class doesn't guarantee concurrency safety. |
| */ |
| public class UnsealedTsFileRecoverPerformer extends AbstractTsFileRecoverPerformer { |
| private static final Logger logger = |
| LoggerFactory.getLogger(UnsealedTsFileRecoverPerformer.class); |
| |
| // sequence file or not |
| private final boolean sequence; |
| // add recovered TsFile back to data region |
| private final Consumer<UnsealedTsFileRecoverPerformer> callbackAfterUnsealedTsFileRecovered; |
| // redo wal log to recover TsFile |
| private final TsFilePlanRedoer walRedoer; |
| // trace result of this recovery |
| private final WALRecoverListener recoverListener; |
| private final String databaseName; |
| private final String dataRegionId; |
| |
| public UnsealedTsFileRecoverPerformer( |
| TsFileResource tsFileResource, |
| boolean sequence, |
| Consumer<UnsealedTsFileRecoverPerformer> callbackAfterUnsealedTsFileRecovered) { |
| super(tsFileResource); |
| this.databaseName = tsFileResource.getDatabaseName(); |
| this.dataRegionId = tsFileResource.getDataRegionId(); |
| this.sequence = sequence; |
| this.callbackAfterUnsealedTsFileRecovered = callbackAfterUnsealedTsFileRecovered; |
| this.walRedoer = new TsFilePlanRedoer(tsFileResource); |
| this.recoverListener = new WALRecoverListener(tsFileResource.getTsFilePath()); |
| } |
| |
| /** |
| * Make preparation for recovery, including load .resource file (reconstruct when necessary) and |
| * truncate the file to remaining corrected data. |
| * |
| * @throws DataRegionException when failing to recover. |
| * @throws IOException when failing to recover. |
| */ |
| public void startRecovery() throws DataRegionException, IOException { |
| super.recoverWithWriter(); |
| |
| if (hasCrashed()) { |
| // tsfile has crashed due to failure, |
| // the last ChunkGroup may contain the same data as the WALs, |
| // so the time map must be updated first to avoid duplicated insertion |
| constructResourceFromTsFile(); |
| } |
| } |
| |
| private void constructResourceFromTsFile() { |
| Map<IDeviceID, Map<String, List<Deletion>>> modificationsForResource = |
| loadModificationsForResource(); |
| Map<IDeviceID, List<ChunkMetadata>> deviceChunkMetaDataMap = writer.getDeviceChunkMetadataMap(); |
| for (Map.Entry<IDeviceID, List<ChunkMetadata>> entry : deviceChunkMetaDataMap.entrySet()) { |
| IDeviceID deviceId = entry.getKey(); |
| List<ChunkMetadata> chunkMetadataList = entry.getValue(); |
| |
| // measurement -> ChunkMetadataList |
| Map<String, List<ChunkMetadata>> measurementToChunkMetadatas = new HashMap<>(); |
| for (ChunkMetadata chunkMetadata : chunkMetadataList) { |
| List<ChunkMetadata> list = |
| measurementToChunkMetadatas.computeIfAbsent( |
| chunkMetadata.getMeasurementUid(), n -> new ArrayList<>()); |
| list.add(chunkMetadata); |
| } |
| for (ChunkMetadata chunkMetaData : chunkMetadataList) { |
| // calculate startTime and endTime according to chunkMetaData and modifications |
| long startTime = chunkMetaData.getStartTime(); |
| long endTime = chunkMetaData.getEndTime(); |
| long chunkHeaderOffset = chunkMetaData.getOffsetOfChunkHeader(); |
| if (modificationsForResource.containsKey(deviceId) |
| && modificationsForResource |
| .get(deviceId) |
| .containsKey(chunkMetaData.getMeasurementUid())) { |
| // exist deletion for current measurement |
| for (Deletion modification : |
| modificationsForResource.get(deviceId).get(chunkMetaData.getMeasurementUid())) { |
| long fileOffset = modification.getFileOffset(); |
| if (chunkHeaderOffset < fileOffset) { |
| // deletion is valid for current chunk |
| long modsStartTime = modification.getStartTime(); |
| long modsEndTime = modification.getEndTime(); |
| if (startTime >= modsStartTime && endTime <= modsEndTime) { |
| startTime = Long.MAX_VALUE; |
| endTime = Long.MIN_VALUE; |
| } else if (startTime >= modsStartTime && startTime <= modsEndTime) { |
| startTime = modsEndTime + 1; |
| } else if (endTime >= modsStartTime && endTime <= modsEndTime) { |
| endTime = modsStartTime - 1; |
| } |
| } |
| } |
| } |
| tsFileResource.updateStartTime(deviceId, startTime); |
| tsFileResource.updateEndTime(deviceId, endTime); |
| } |
| } |
| tsFileResource.updatePlanIndexes(writer.getMinPlanIndex()); |
| tsFileResource.updatePlanIndexes(writer.getMaxPlanIndex()); |
| } |
| |
| // load modifications for recovering tsFileResource |
| private Map<IDeviceID, Map<String, List<Deletion>>> loadModificationsForResource() { |
| Map<IDeviceID, Map<String, List<Deletion>>> modificationsForResource = new HashMap<>(); |
| ModificationFile modificationFile = tsFileResource.getModFile(); |
| if (modificationFile.exists()) { |
| List<Modification> modifications = (List<Modification>) modificationFile.getModifications(); |
| for (Modification modification : modifications) { |
| if (modification.getType().equals(Modification.Type.DELETION)) { |
| IDeviceID deviceId = modification.getPath().getIDeviceID(); |
| String measurementId = modification.getPath().getMeasurement(); |
| Map<String, List<Deletion>> measurementModsMap = |
| modificationsForResource.computeIfAbsent(deviceId, n -> new HashMap<>()); |
| List<Deletion> list = |
| measurementModsMap.computeIfAbsent(measurementId, n -> new ArrayList<>()); |
| list.add((Deletion) modification); |
| } |
| } |
| } |
| return modificationsForResource; |
| } |
| |
| /** Redo log. */ |
| public void redoLog(WALEntry walEntry) { |
| // skip redo wal log when this TsFile is not crashed |
| if (!hasCrashed()) { |
| logger.info( |
| "This TsFile {} isn't crashed, no need to redo wal log.", tsFileResource.getTsFilePath()); |
| return; |
| } |
| try { |
| switch (walEntry.getType()) { |
| case MEMORY_TABLE_SNAPSHOT: |
| IMemTable memTable = (IMemTable) walEntry.getValue(); |
| if (!memTable.isSignalMemTable()) { |
| if (tsFileResource != null) { |
| for (IDeviceID device : tsFileResource.getDevices()) { |
| memTable.delete( |
| new PartialPath(device, "*"), |
| new PartialPath(device), |
| tsFileResource.getStartTime(device), |
| tsFileResource.getEndTime(device)); |
| } |
| } |
| walRedoer.resetRecoveryMemTable(memTable); |
| } |
| // update memtable's database and dataRegionId |
| memTable.setDatabaseAndDataRegionId(databaseName, dataRegionId); |
| break; |
| case INSERT_ROW_NODE: |
| case INSERT_TABLET_NODE: |
| walRedoer.redoInsert((InsertNode) walEntry.getValue()); |
| break; |
| case INSERT_ROWS_NODE: |
| walRedoer.redoInsertRows((InsertRowsNode) walEntry.getValue()); |
| break; |
| case DELETE_DATA_NODE: |
| walRedoer.redoDelete((DeleteDataNode) walEntry.getValue()); |
| break; |
| default: |
| throw new RuntimeException("Unsupported type " + walEntry.getType()); |
| } |
| } catch (Exception e) { |
| logger.warn("meet error when redo wal of {}", tsFileResource.getTsFile(), e); |
| } |
| } |
| |
| /** |
| * Run last procedures to end this recovery. |
| * |
| * @throws WALRecoverException when failing to flush the recovered memTable. |
| */ |
| public void endRecovery() throws WALRecoverException { |
| // skip update info when this TsFile is not crashed |
| if (hasCrashed()) { |
| IMemTable recoveryMemTable = walRedoer.getRecoveryMemTable(); |
| // update time map |
| Map<IDeviceID, IWritableMemChunkGroup> memTableMap = recoveryMemTable.getMemTableMap(); |
| for (Map.Entry<IDeviceID, IWritableMemChunkGroup> deviceEntry : memTableMap.entrySet()) { |
| IDeviceID deviceId = deviceEntry.getKey(); |
| for (Map.Entry<String, IWritableMemChunk> measurementEntry : |
| deviceEntry.getValue().getMemChunkMap().entrySet()) { |
| IWritableMemChunk memChunk = measurementEntry.getValue(); |
| tsFileResource.updateStartTime(deviceId, memChunk.getFirstPoint()); |
| tsFileResource.updateEndTime(deviceId, memChunk.getLastPoint()); |
| } |
| } |
| // flush memTable |
| try { |
| if (!recoveryMemTable.isEmpty() && recoveryMemTable.getSeriesNumber() != 0) { |
| MemTableFlushTask tableFlushTask = |
| new MemTableFlushTask( |
| recoveryMemTable, |
| writer, |
| databaseName + FILE_NAME_SEPARATOR + dataRegionId, |
| dataRegionId); |
| tableFlushTask.syncFlushMemTable(); |
| tsFileResource.updatePlanIndexes(recoveryMemTable.getMinPlanIndex()); |
| tsFileResource.updatePlanIndexes(recoveryMemTable.getMaxPlanIndex()); |
| } |
| |
| // set recover progress index for pipe |
| PipeAgent.runtime().assignProgressIndexForTsFileRecovery(tsFileResource); |
| |
| // if we put following codes in the 'if' clause above, this file can be continued writing |
| // into it |
| // currently, we close this file anyway |
| writer.endFile(); |
| tsFileResource.serialize(); |
| } catch (IOException | ExecutionException e) { |
| throw new WALRecoverException(e); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| throw new WALRecoverException(e); |
| } |
| } |
| |
| // return this TsFile back to vsg processor |
| callbackAfterUnsealedTsFileRecovered.accept(this); |
| } |
| |
| public TsFileResource getTsFileResource() { |
| return tsFileResource; |
| } |
| |
| public RestorableTsFileIOWriter getWriter() { |
| return writer; |
| } |
| |
| public boolean isSequence() { |
| return sequence; |
| } |
| |
| public WALRecoverListener getRecoverListener() { |
| return recoverListener; |
| } |
| |
| public String getTsFileAbsolutePath() { |
| return tsFileResource.getTsFile().getAbsolutePath(); |
| } |
| } |