org.apache.hadoop.hbase.mob.compactions

Class TestMobCompactor.CompactTwoLatestHfilesCopro

java.lang.Object

org.apache.hadoop.hbase.mob.compactions.TestMobCompactor.CompactTwoLatestHfilesCopro

All Implemented Interfaces:

Coprocessor, RegionCoprocessor, RegionObserver

Enclosing class:

TestMobCompactor

public static class TestMobCompactor.CompactTwoLatestHfilesCopro
extends Object
implements RegionCoprocessor, RegionObserver

This copro overwrites the default compaction policy. It always chooses two latest hfiles and compacts them into a new one.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.Coprocessor

Coprocessor.State

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.coprocessor.RegionObserver

RegionObserver.MutationType

Field Summary

Fields inherited from interface org.apache.hadoop.hbase.Coprocessor

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

Constructor Summary

Constructors

Constructor and Description
CompactTwoLatestHfilesCopro()

Method Summary

Modifier and Type	Method and Description
Optional<RegionObserver>	getRegionObserver()
void	preCompactSelection(ObserverContext<RegionCoprocessorEnvironment> c, Store store, List<? extends StoreFile> candidates, org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker tracker)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.coprocessor.RegionCoprocessor

getBulkLoadObserver, getEndpointObserver

Methods inherited from interface org.apache.hadoop.hbase.Coprocessor

getServices, start, stop

Methods inherited from interface org.apache.hadoop.hbase.coprocessor.RegionObserver

postAppend, postBatchMutate, postBatchMutateIndispensably, postBulkLoadHFile, postCheckAndDelete, postCheckAndPut, postClose, postCloseRegionOperation, postCommitStoreFile, postCompact, postCompactSelection, postDelete, postExists, postFlush, postFlush, postGetOp, postIncrement, postInstantiateDeleteTracker, postMemStoreCompaction, postMutationBeforeWAL, postOpen, postPut, postReplayWALs, postScannerClose, postScannerFilterRow, postScannerNext, postScannerOpen, postStartRegionOperation, postStoreFileReaderOpen, postWALRestore, preAppend, preAppendAfterRowLock, preBatchMutate, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCommitStoreFile, preCompact, preCompactScannerOpen, preDelete, preExists, preFlush, preFlush, preFlushScannerOpen, preGetOp, preIncrement, preIncrementAfterRowLock, preMemStoreCompaction, preMemStoreCompactionCompact, preMemStoreCompactionCompactScannerOpen, preOpen, prePrepareTimeStampForDeleteVersion, prePut, preReplayWALs, preScannerClose, preScannerNext, preScannerOpen, preStoreFileReaderOpen, preStoreScannerOpen, preWALRestore

Constructor Detail

CompactTwoLatestHfilesCopro

public CompactTwoLatestHfilesCopro()

Method Detail

getRegionObserver

public Optional<RegionObserver> getRegionObserver()

Specified by:

getRegionObserver in interface RegionCoprocessor

preCompactSelection

public void preCompactSelection(ObserverContext<RegionCoprocessorEnvironment> c,
                                Store store,
                                List<? extends StoreFile> candidates,
                                org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker tracker)
                         throws IOException

Specified by:

preCompactSelection in interface RegionObserver

Throws:

IOException