Package org.apache.iotdb.db.engine.compaction

Class CompactionUtils

java.lang.Object

org.apache.iotdb.db.engine.compaction.CompactionUtils

public class CompactionUtils
extends java.lang.Object

This tool can be used to perform inner space or cross space compaction of aligned and non aligned timeseries.

Constructor Summary

Constructors

Constructor	Description
CompactionUtils()

Method Summary

Modifier and Type	Method	Description
static void	combineModsInCrossCompaction(java.util.List<TsFileResource> seqResources, java.util.List<TsFileResource> unseqResources, java.util.List<TsFileResource> targetResources)	Collect all the compaction modification files of source files, and combines them as the modification file of target file.
static void	combineModsInInnerCompaction(java.util.Collection<TsFileResource> sourceFiles, TsFileResource targetTsFile)	Collect all the compaction modification files of source files, and combines them as the modification file of target file.
static void	deleteCompactionModsFile(java.util.List<TsFileResource> selectedSeqTsFileResourceList, java.util.List<TsFileResource> selectedUnSeqTsFileResourceList)
static void	deleteModificationForSourceFile(java.util.Collection<TsFileResource> sourceFiles, java.lang.String storageGroupName)	Delete all modification files for source files
static boolean	deleteTsFile(TsFileResource seqFile)
static boolean	deleteTsFilesInDisk(java.util.Collection<TsFileResource> mergeTsFiles, java.lang.String storageGroupName)
static void	moveTargetFile(java.util.List<TsFileResource> targetResources, boolean isInnerSpace, java.lang.String fullStorageGroupName)	Update the targetResource.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CompactionUtils

public CompactionUtils()

Method Detail

moveTargetFile

public static void moveTargetFile(java.util.List<TsFileResource> targetResources,
                                  boolean isInnerSpace,
                                  java.lang.String fullStorageGroupName)
                           throws java.io.IOException,
                                  org.apache.iotdb.tsfile.exception.write.WriteProcessException

Update the targetResource. Move tmp target file to target file and serialize xxx.tsfile.resource.

Throws:

java.io.IOException

org.apache.iotdb.tsfile.exception.write.WriteProcessException

combineModsInCrossCompaction

public static void combineModsInCrossCompaction(java.util.List<TsFileResource> seqResources,
                                                java.util.List<TsFileResource> unseqResources,
                                                java.util.List<TsFileResource> targetResources)
                                         throws java.io.IOException

Collect all the compaction modification files of source files, and combines them as the modification file of target file.

Throws:

java.io.IOException

combineModsInInnerCompaction

public static void combineModsInInnerCompaction(java.util.Collection<TsFileResource> sourceFiles,
                                                TsFileResource targetTsFile)
                                         throws java.io.IOException

Collect all the compaction modification files of source files, and combines them as the modification file of target file.

Throws:

java.io.IOException

deleteCompactionModsFile

public static void deleteCompactionModsFile(java.util.List<TsFileResource> selectedSeqTsFileResourceList,
                                            java.util.List<TsFileResource> selectedUnSeqTsFileResourceList)
                                     throws java.io.IOException

Throws:

java.io.IOException

deleteTsFilesInDisk

public static boolean deleteTsFilesInDisk(java.util.Collection<TsFileResource> mergeTsFiles,
                                          java.lang.String storageGroupName)

deleteTsFile

public static boolean deleteTsFile(TsFileResource seqFile)

deleteModificationForSourceFile

public static void deleteModificationForSourceFile(java.util.Collection<TsFileResource> sourceFiles,
                                                   java.lang.String storageGroupName)
                                            throws java.io.IOException

Delete all modification files for source files

Throws:

java.io.IOException