| /* |
| * 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.compaction.execute.performer.impl; |
| |
| import org.apache.iotdb.commons.exception.IllegalPathException; |
| import org.apache.iotdb.commons.exception.MetadataException; |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.db.conf.IoTDBDescriptor; |
| import org.apache.iotdb.db.exception.StorageEngineException; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.exception.CompactionTargetFileCountExceededException; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.performer.ISeqCompactionPerformer; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.task.CompactionTaskSummary; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.CompactionPathUtils; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.MultiTsFileDeviceIterator; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.readchunk.ReadChunkAlignedSeriesCompactionExecutor; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.readchunk.SingleSeriesCompactionExecutor; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.io.CompactionTsFileWriter; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.schedule.constant.CompactionType; |
| import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResource; |
| import org.apache.iotdb.db.storageengine.rescon.memory.SystemInfo; |
| import org.apache.iotdb.tsfile.exception.write.PageException; |
| import org.apache.iotdb.tsfile.file.metadata.AlignedChunkMetadata; |
| import org.apache.iotdb.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.iotdb.tsfile.file.metadata.IDeviceID; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.read.TsFileSequenceReader; |
| import org.apache.iotdb.tsfile.utils.Pair; |
| |
| import java.io.IOException; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| public class ReadChunkCompactionPerformer implements ISeqCompactionPerformer { |
| private TsFileResource targetResource; |
| private List<TsFileResource> seqFiles; |
| private CompactionTaskSummary summary; |
| |
| public ReadChunkCompactionPerformer(List<TsFileResource> sourceFiles, TsFileResource targetFile) { |
| this.seqFiles = sourceFiles; |
| this.targetResource = targetFile; |
| } |
| |
| public ReadChunkCompactionPerformer(List<TsFileResource> sourceFiles) { |
| this.seqFiles = sourceFiles; |
| } |
| |
| public ReadChunkCompactionPerformer() {} |
| |
| @Override |
| public void perform() |
| throws IOException, MetadataException, InterruptedException, StorageEngineException, |
| PageException { |
| // size for file writer is 5% of per compaction task memory budget |
| long sizeForFileWriter = |
| (long) |
| ((double) SystemInfo.getInstance().getMemorySizeForCompaction() |
| / IoTDBDescriptor.getInstance().getConfig().getCompactionThreadCount() |
| * IoTDBDescriptor.getInstance().getConfig().getChunkMetadataSizeProportion()); |
| try (MultiTsFileDeviceIterator deviceIterator = new MultiTsFileDeviceIterator(seqFiles); |
| CompactionTsFileWriter writer = |
| new CompactionTsFileWriter( |
| targetResource.getTsFile(), |
| sizeForFileWriter, |
| CompactionType.INNER_SEQ_COMPACTION)) { |
| while (deviceIterator.hasNextDevice()) { |
| Pair<IDeviceID, Boolean> deviceInfo = deviceIterator.nextDevice(); |
| IDeviceID device = deviceInfo.left; |
| boolean aligned = deviceInfo.right; |
| |
| if (aligned) { |
| compactAlignedSeries(device, targetResource, writer, deviceIterator); |
| } else { |
| compactNotAlignedSeries(device, targetResource, writer, deviceIterator); |
| } |
| // update temporal file metrics |
| summary.setTemporalFileSize(writer.getPos()); |
| } |
| |
| for (TsFileResource tsFileResource : seqFiles) { |
| targetResource.updatePlanIndexes(tsFileResource); |
| } |
| writer.endFile(); |
| if (writer.isEmptyTargetFile()) { |
| targetResource.forceMarkDeleted(); |
| } |
| } |
| } |
| |
| @Override |
| public void setTargetFiles(List<TsFileResource> targetFiles) { |
| if (targetFiles.size() != 1) { |
| throw new CompactionTargetFileCountExceededException( |
| String.format( |
| "Current performer only supports for one target file while getting %d target files", |
| targetFiles.size())); |
| } |
| this.targetResource = targetFiles.get(0); |
| } |
| |
| @Override |
| public void setSummary(CompactionTaskSummary summary) { |
| this.summary = summary; |
| } |
| |
| private void compactAlignedSeries( |
| IDeviceID device, |
| TsFileResource targetResource, |
| CompactionTsFileWriter writer, |
| MultiTsFileDeviceIterator deviceIterator) |
| throws IOException, InterruptedException, IllegalPathException, PageException { |
| checkThreadInterrupted(); |
| LinkedList<Pair<TsFileSequenceReader, List<AlignedChunkMetadata>>> readerAndChunkMetadataList = |
| deviceIterator.getReaderAndChunkMetadataForCurrentAlignedSeries(); |
| if (!checkAlignedSeriesExists(readerAndChunkMetadataList)) { |
| return; |
| } |
| writer.startChunkGroup(device); |
| ReadChunkAlignedSeriesCompactionExecutor compactionExecutor = |
| new ReadChunkAlignedSeriesCompactionExecutor( |
| device, targetResource, readerAndChunkMetadataList, writer, summary); |
| compactionExecutor.execute(); |
| for (ChunkMetadata chunkMetadata : writer.getChunkMetadataListOfCurrentDeviceInMemory()) { |
| if (chunkMetadata.getMeasurementUid().isEmpty()) { |
| targetResource.updateStartTime(device, chunkMetadata.getStartTime()); |
| targetResource.updateEndTime(device, chunkMetadata.getEndTime()); |
| } |
| } |
| writer.checkMetadataSizeAndMayFlush(); |
| writer.endChunkGroup(); |
| } |
| |
| private void checkThreadInterrupted() throws InterruptedException { |
| if (Thread.interrupted() || summary.isCancel()) { |
| throw new InterruptedException( |
| String.format( |
| "[Compaction] compaction for target file %s abort", targetResource.toString())); |
| } |
| } |
| |
| private boolean checkAlignedSeriesExists( |
| LinkedList<Pair<TsFileSequenceReader, List<AlignedChunkMetadata>>> |
| readerAndChunkMetadataList) { |
| for (Pair<TsFileSequenceReader, List<AlignedChunkMetadata>> readerListPair : |
| readerAndChunkMetadataList) { |
| if (!readerListPair.right.isEmpty()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @SuppressWarnings("squid:S1135") |
| private void compactNotAlignedSeries( |
| IDeviceID device, |
| TsFileResource targetResource, |
| CompactionTsFileWriter writer, |
| MultiTsFileDeviceIterator deviceIterator) |
| throws IOException, MetadataException, InterruptedException { |
| writer.startChunkGroup(device); |
| MultiTsFileDeviceIterator.MeasurementIterator seriesIterator = |
| deviceIterator.iterateNotAlignedSeries(device, true); |
| while (seriesIterator.hasNextSeries()) { |
| checkThreadInterrupted(); |
| // TODO: we can provide a configuration item to enable concurrent between each series |
| PartialPath p = CompactionPathUtils.getPath(device, seriesIterator.nextSeries()); |
| // TODO: seriesIterator needs to be refactor. |
| // This statement must be called before next hasNextSeries() called, or it may be trapped in a |
| // dead-loop. |
| LinkedList<Pair<TsFileSequenceReader, List<ChunkMetadata>>> readerAndChunkMetadataList = |
| seriesIterator.getMetadataListForCurrentSeries(); |
| // remove the chunk metadata whose data type not match the data type of last chunk |
| readerAndChunkMetadataList = |
| filterDataTypeNotMatchedChunkMetadata(readerAndChunkMetadataList); |
| SingleSeriesCompactionExecutor compactionExecutorOfCurrentTimeSeries = |
| new SingleSeriesCompactionExecutor( |
| p, readerAndChunkMetadataList, writer, targetResource, summary); |
| compactionExecutorOfCurrentTimeSeries.execute(); |
| } |
| writer.endChunkGroup(); |
| } |
| |
| private LinkedList<Pair<TsFileSequenceReader, List<ChunkMetadata>>> |
| filterDataTypeNotMatchedChunkMetadata( |
| LinkedList<Pair<TsFileSequenceReader, List<ChunkMetadata>>> readerAndChunkMetadataList) { |
| if (readerAndChunkMetadataList.isEmpty()) { |
| return readerAndChunkMetadataList; |
| } |
| LinkedList<Pair<TsFileSequenceReader, List<ChunkMetadata>>> result = new LinkedList<>(); |
| // find correct data type |
| TSDataType correctDataType = null; |
| for (int i = readerAndChunkMetadataList.size() - 1; i >= 0 && correctDataType == null; i--) { |
| List<ChunkMetadata> chunkMetadataList = readerAndChunkMetadataList.get(i).getRight(); |
| if (chunkMetadataList == null || chunkMetadataList.isEmpty()) { |
| continue; |
| } |
| for (ChunkMetadata chunkMetadata : chunkMetadataList) { |
| if (chunkMetadata == null) { |
| continue; |
| } |
| correctDataType = chunkMetadata.getDataType(); |
| break; |
| } |
| } |
| if (correctDataType == null) { |
| return readerAndChunkMetadataList; |
| } |
| // check data type consistent and skip compact files with wrong data type |
| for (Pair<TsFileSequenceReader, List<ChunkMetadata>> tsFileSequenceReaderListPair : |
| readerAndChunkMetadataList) { |
| boolean dataTypeConsistent = true; |
| for (ChunkMetadata chunkMetadata : tsFileSequenceReaderListPair.getRight()) { |
| if (chunkMetadata != null && chunkMetadata.getDataType() != correctDataType) { |
| dataTypeConsistent = false; |
| break; |
| } |
| } |
| if (!dataTypeConsistent) { |
| continue; |
| } |
| result.add(tsFileSequenceReaderListPair); |
| } |
| return result; |
| } |
| |
| @Override |
| public void setSourceFiles(List<TsFileResource> seqFiles) { |
| this.seqFiles = seqFiles; |
| } |
| } |
