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

Interface ICompactionSelector

All Known Subinterfaces:

ICrossSpaceSelector, IInnerSeqSpaceSelector, IInnerUnseqSpaceSelector

All Known Implementing Classes:

RewriteCrossSpaceCompactionSelector, SizeTieredCompactionSelector

public interface ICompactionSelector

AbstractCompactionSelector is the base class of all CompactionSelector. It runs the file selection process, if there still threads availabe for compaction task, it will submit a compaction task to CompactionTaskManager and increase the global compaction task count.

Method Summary

Modifier and Type	Method	Description
static AbstractCompactionEstimator	getCompactionEstimator(CrossCompactionPerformer compactionPerformer, boolean isInnerSpace)
default java.util.List<java.lang.Long>	getCompactionMemoryCost()
default java.util.List<org.apache.iotdb.tsfile.utils.Pair<java.util.List<TsFileResource>,java.util.List<TsFileResource>>>	selectCrossSpaceTask(java.util.List<TsFileResource> seqFiles, java.util.List<TsFileResource> unseqFiles)
default java.util.List<java.util.List<TsFileResource>>	selectInnerSpaceTask(java.util.List<TsFileResource> resources)

Method Detail

selectInnerSpaceTask

default java.util.List<java.util.List<TsFileResource>> selectInnerSpaceTask(java.util.List<TsFileResource> resources)

selectCrossSpaceTask

default java.util.List<org.apache.iotdb.tsfile.utils.Pair<java.util.List<TsFileResource>,java.util.List<TsFileResource>>> selectCrossSpaceTask(java.util.List<TsFileResource> seqFiles,
                                                                                                                                                     java.util.List<TsFileResource> unseqFiles)

getCompactionMemoryCost

default java.util.List<java.lang.Long> getCompactionMemoryCost()

getCompactionEstimator

static AbstractCompactionEstimator getCompactionEstimator(CrossCompactionPerformer compactionPerformer,
                                                          boolean isInnerSpace)