| /* |
| * 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.utils.executor.fast; |
| |
| import org.apache.iotdb.commons.exception.IllegalPathException; |
| import org.apache.iotdb.db.exception.WriteProcessException; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.task.subtask.FastCompactionTaskSummary; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.CompactionPathUtils; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.ModifiedStatus; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.fast.element.ChunkMetadataElement; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.fast.element.FileElement; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.fast.element.NonAlignedPageElement; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.fast.element.PageElement; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.executor.fast.reader.CompactionChunkReader; |
| import org.apache.iotdb.db.storageengine.dataregion.compaction.execute.utils.writer.AbstractCompactionWriter; |
| import org.apache.iotdb.db.storageengine.dataregion.modification.Modification; |
| import org.apache.iotdb.db.storageengine.dataregion.tsfile.TsFileResource; |
| import org.apache.iotdb.db.utils.ModificationUtils; |
| |
| import org.apache.tsfile.exception.write.PageException; |
| import org.apache.tsfile.file.header.ChunkHeader; |
| import org.apache.tsfile.file.header.PageHeader; |
| import org.apache.tsfile.file.metadata.ChunkMetadata; |
| import org.apache.tsfile.file.metadata.IChunkMetadata; |
| import org.apache.tsfile.file.metadata.IDeviceID; |
| import org.apache.tsfile.file.metadata.enums.CompressionType; |
| import org.apache.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.tsfile.read.TsFileSequenceReader; |
| import org.apache.tsfile.read.common.Chunk; |
| import org.apache.tsfile.utils.Pair; |
| import org.apache.tsfile.write.schema.MeasurementSchema; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class NonAlignedSeriesCompactionExecutor extends SeriesCompactionExecutor { |
| private boolean hasStartMeasurement = false; |
| |
| private CompressionType seriesCompressionType = null; |
| |
| private TSEncoding seriesTSEncoding = null; |
| |
| // tsfile resource -> timeseries metadata <startOffset, endOffset> |
| // used to get the chunk metadatas from tsfile directly according to timeseries metadata offset. |
| private Map<TsFileResource, Pair<Long, Long>> timeseriesMetadataOffsetMap; |
| |
| // it is used to initialize the fileList when compacting a new series |
| private final List<TsFileResource> sortResources; |
| |
| public NonAlignedSeriesCompactionExecutor( |
| AbstractCompactionWriter compactionWriter, |
| Map<TsFileResource, TsFileSequenceReader> readerCacheMap, |
| Map<TsFileResource, List<Modification>> modificationCacheMap, |
| List<TsFileResource> sortedSourceFiles, |
| IDeviceID deviceId, |
| int subTaskId, |
| FastCompactionTaskSummary summary) { |
| super( |
| compactionWriter, |
| readerCacheMap, |
| modificationCacheMap, |
| deviceId, |
| false, |
| subTaskId, |
| summary); |
| this.sortResources = sortedSourceFiles; |
| } |
| |
| @Override |
| public void execute() |
| throws PageException, IllegalPathException, IOException, WriteProcessException { |
| compactFiles(); |
| if (hasStartMeasurement) { |
| compactionWriter.endMeasurement(subTaskId); |
| } |
| } |
| |
| public void setNewMeasurement(Map<TsFileResource, Pair<Long, Long>> timeseriesMetadataOffsetMap) { |
| this.timeseriesMetadataOffsetMap = timeseriesMetadataOffsetMap; |
| // get source files which are sorted by the startTime of current device from old to new, |
| // files that do not contain the current device have been filtered out as well. |
| sortResources.forEach(x -> fileList.add(new FileElement(x))); |
| hasStartMeasurement = false; |
| } |
| |
| @Override |
| protected void compactFiles() |
| throws PageException, IOException, WriteProcessException, IllegalPathException { |
| while (!fileList.isEmpty()) { |
| List<FileElement> overlappedFiles = findOverlapFiles(fileList.get(0)); |
| |
| // read chunk metadatas from files and put them into chunk metadata queue |
| deserializeFileIntoChunkMetadataQueue(overlappedFiles); |
| |
| compactChunks(); |
| } |
| } |
| |
| /** |
| * Deserialize files into chunk metadatas and put them into the chunk metadata queue. |
| * |
| * @throws IOException if io errors occurred |
| * @throws IllegalPathException if the file path is illegal |
| */ |
| @SuppressWarnings("checkstyle:LocalVariableNameCheck") |
| void deserializeFileIntoChunkMetadataQueue(List<FileElement> fileElements) |
| throws IOException, IllegalPathException { |
| for (FileElement fileElement : fileElements) { |
| TsFileResource resource = fileElement.resource; |
| Pair<Long, Long> timeseriesMetadataOffset = timeseriesMetadataOffsetMap.get(resource); |
| if (timeseriesMetadataOffset == null) { |
| // tsfile does not contain this timeseries |
| removeFile(fileElement); |
| continue; |
| } |
| List<IChunkMetadata> iChunkMetadataList = |
| readerCacheMap |
| .get(resource) |
| .getChunkMetadataListByTimeseriesMetadataOffset( |
| timeseriesMetadataOffset.left, timeseriesMetadataOffset.right); |
| |
| if (!iChunkMetadataList.isEmpty()) { |
| // modify chunk metadatas |
| ModificationUtils.modifyChunkMetaData( |
| iChunkMetadataList, |
| getModificationsFromCache( |
| resource, |
| CompactionPathUtils.getPath( |
| deviceId, iChunkMetadataList.get(0).getMeasurementUid()))); |
| if (iChunkMetadataList.isEmpty()) { |
| // all chunks has been deleted in this file, just remove it |
| removeFile(fileElement); |
| } |
| } |
| |
| for (int i = 0; i < iChunkMetadataList.size(); i++) { |
| IChunkMetadata chunkMetadata = iChunkMetadataList.get(i); |
| |
| // add into queue |
| chunkMetadataQueue.add( |
| new ChunkMetadataElement( |
| chunkMetadata, |
| resource.getVersion(), |
| i == iChunkMetadataList.size() - 1, |
| fileElement)); |
| } |
| } |
| } |
| |
| /** Deserialize chunk into pages without uncompressing and put them into the page queue. */ |
| void deserializeChunkIntoPageQueue(ChunkMetadataElement chunkMetadataElement) throws IOException { |
| updateSummary(chunkMetadataElement, ChunkStatus.DESERIALIZE_CHUNK); |
| Chunk chunk = chunkMetadataElement.chunk; |
| CompactionChunkReader chunkReader = new CompactionChunkReader(chunk); |
| List<Pair<PageHeader, ByteBuffer>> pages = chunkReader.readPageDataWithoutUncompressing(); |
| for (int i = 0; i < pages.size(); i++) { |
| boolean isLastPage = i == pages.size() - 1; |
| pageQueue.add( |
| new NonAlignedPageElement( |
| pages.get(i).left, |
| pages.get(i).right, |
| chunkReader, |
| chunkMetadataElement, |
| isLastPage, |
| chunkMetadataElement.priority)); |
| } |
| chunkMetadataElement.clearChunks(); |
| } |
| |
| @Override |
| void readChunk(ChunkMetadataElement chunkMetadataElement) throws IOException { |
| updateSummary(chunkMetadataElement, ChunkStatus.READ_IN); |
| chunkMetadataElement.chunk = |
| readerCacheMap |
| .get(chunkMetadataElement.fileElement.resource) |
| .readMemChunk((ChunkMetadata) chunkMetadataElement.chunkMetadata); |
| |
| if (!hasStartMeasurement) { |
| // for nonAligned sensors, only after getting chunkMetadatas can we create metadata to |
| // start |
| // measurement; for aligned sensors, we get all schemas of value sensors and |
| // startMeasurement() in the previous process, because we need to get all chunk metadatas of |
| // sensors and their schemas under the current device, but since the compaction process is |
| // to read a batch of overlapped files each time, which may not contain all the sensors. |
| ChunkHeader header = chunkMetadataElement.chunk.getHeader(); |
| MeasurementSchema schema = |
| new MeasurementSchema( |
| header.getMeasurementID(), |
| header.getDataType(), |
| header.getEncodingType(), |
| header.getCompressionType()); |
| compactionWriter.startMeasurement(Collections.singletonList(schema), subTaskId); |
| hasStartMeasurement = true; |
| seriesCompressionType = header.getCompressionType(); |
| seriesTSEncoding = header.getEncodingType(); |
| chunkMetadataElement.needForceDecoding = false; |
| } else { |
| ChunkHeader header = chunkMetadataElement.chunk.getHeader(); |
| chunkMetadataElement.needForceDecoding = |
| header.getCompressionType() != seriesCompressionType |
| || header.getEncodingType() != seriesTSEncoding; |
| } |
| } |
| |
| /** |
| * NONE_DELETED means that no data on this page has been deleted. <br> |
| * PARTIAL_DELETED means that there is data on this page been deleted. <br> |
| * ALL_DELETED means that all data on this page has been deleted. |
| */ |
| protected ModifiedStatus isPageModified(PageElement pageElement) { |
| long startTime = pageElement.getStartTime(); |
| long endTime = pageElement.getEndTime(); |
| return checkIsModified( |
| startTime, |
| endTime, |
| pageElement.getChunkMetadataElement().chunkMetadata.getDeleteIntervalList()); |
| } |
| } |
