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

Class CompactionScheduler

java.lang.Object

org.apache.iotdb.db.engine.compaction.CompactionScheduler

public class CompactionScheduler
extends java.lang.Object

CompactionScheduler schedules and submits the compaction task periodically, and it counts the total number of running compaction task. There are three compaction strategy: BALANCE, INNER_CROSS, CROSS_INNER. Difference strategies will lead to different compaction preferences. For different types of compaction task(e.g. InnerSpaceCompaction), CompactionScheduler will call the corresponding selector according to the compaction machanism of the task(e.g. LevelCompaction, SizeTiredCompaction), and the selection and submission process is carried out in the ICompactionSelector.selectInnerSpaceTask(List) () and ICompactionSelector.selectCrossSpaceTask(List, List)} in selector.

Constructor Summary

Constructors

Constructor	Description
CompactionScheduler()

Method Summary

Modifier and Type	Method	Description
static void	scheduleCompaction(TsFileManager tsFileManager, long timePartition)
static void	tryToSubmitInnerSpaceCompactionTask(java.lang.String storageGroupName, java.lang.String dataRegionId, long timePartition, TsFileManager tsFileManager, boolean sequence)

Methods inherited from class java.lang.Object

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

Constructor Detail

CompactionScheduler

public CompactionScheduler()

Method Detail

scheduleCompaction

public static void scheduleCompaction(TsFileManager tsFileManager,
                                      long timePartition)

tryToSubmitInnerSpaceCompactionTask

public static void tryToSubmitInnerSpaceCompactionTask(java.lang.String storageGroupName,
                                                       java.lang.String dataRegionId,
                                                       long timePartition,
                                                       TsFileManager tsFileManager,
                                                       boolean sequence)
                                                throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException