org.apache.hadoop.hbase.coprocessor

Class SampleRegionWALCoprocessor

java.lang.Object

org.apache.hadoop.hbase.coprocessor.SampleRegionWALCoprocessor

All Implemented Interfaces:

org.apache.hadoop.hbase.Coprocessor, org.apache.hadoop.hbase.coprocessor.RegionCoprocessor, org.apache.hadoop.hbase.coprocessor.RegionObserver, org.apache.hadoop.hbase.coprocessor.WALCoprocessor, org.apache.hadoop.hbase.coprocessor.WALObserver

public class SampleRegionWALCoprocessor
extends Object
implements org.apache.hadoop.hbase.coprocessor.WALCoprocessor, org.apache.hadoop.hbase.coprocessor.RegionCoprocessor, org.apache.hadoop.hbase.coprocessor.WALObserver, org.apache.hadoop.hbase.coprocessor.RegionObserver

Class for testing WALObserver coprocessor. It will monitor WAL writing and restoring, and modify passed-in WALEdit, i.e, ignore specified columns when writing, or add a KeyValue. On the other side, it checks whether the ignored column is still in WAL when Restoreed at region reconstruct.

Nested Class Summary

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

org.apache.hadoop.hbase.Coprocessor.State

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

org.apache.hadoop.hbase.coprocessor.RegionObserver.MutationType

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	addedFamily
private byte[]	addedQualifier
private byte[]	changedFamily
private byte[]	changedQualifier
private byte[]	ignoredFamily
private byte[]	ignoredQualifier
private static org.slf4j.Logger	LOG
private boolean	postWALRestoreCalled
private boolean	postWALRollCalled
private boolean	postWALWriteCalled
private boolean	preWALRestoreCalled
private boolean	preWALRollCalled
private boolean	preWALWriteCalled
private byte[]	row
private byte[]	tableName

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

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

Constructor Summary

Constructors

Constructor and Description
SampleRegionWALCoprocessor()

Method Summary

Modifier and Type	Method and Description
Optional<org.apache.hadoop.hbase.coprocessor.RegionObserver>	getRegionObserver()
Optional<org.apache.hadoop.hbase.coprocessor.WALObserver>	getWALObserver()
boolean	isPostWALRestoreCalled()
boolean	isPostWALRollCalled()
boolean	isPostWALWriteCalled()
boolean	isPreWALRestoreCalled()
boolean	isPreWALRollCalled()
boolean	isPreWALWriteCalled()
void	postWALRestore(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment> env, org.apache.hadoop.hbase.client.RegionInfo info, org.apache.hadoop.hbase.wal.WALKey logKey, org.apache.hadoop.hbase.wal.WALEdit logEdit) Triggered after HRegion when WAL is Restoreed.
void	postWALRoll(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> ctx, org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath)
void	postWALWrite(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> env, org.apache.hadoop.hbase.client.RegionInfo info, org.apache.hadoop.hbase.wal.WALKey logKey, org.apache.hadoop.hbase.wal.WALEdit logEdit)
void	preWALRestore(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment> env, org.apache.hadoop.hbase.client.RegionInfo info, org.apache.hadoop.hbase.wal.WALKey logKey, org.apache.hadoop.hbase.wal.WALEdit logEdit) Triggered before HRegion when WAL is Restoreed.
void	preWALRoll(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> ctx, org.apache.hadoop.fs.Path oldPath, org.apache.hadoop.fs.Path newPath)
void	preWALWrite(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> env, org.apache.hadoop.hbase.client.RegionInfo info, org.apache.hadoop.hbase.wal.WALKey logKey, org.apache.hadoop.hbase.wal.WALEdit logEdit)
void	setTestValues(byte[] tableName, byte[] row, byte[] igf, byte[] igq, byte[] chf, byte[] chq, byte[] addf, byte[] addq) Set values: with a table name, a column name which will be ignored, and a column name which will be added to WAL.

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, preAppend, preAppendAfterRowLock, preBatchMutate, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCommitStoreFile, preCompact, preCompactScannerOpen, preCompactSelection, preDelete, preExists, preFlush, preFlush, preFlushScannerOpen, preGetOp, preIncrement, preIncrementAfterRowLock, preMemStoreCompaction, preMemStoreCompactionCompact, preMemStoreCompactionCompactScannerOpen, preOpen, prePrepareTimeStampForDeleteVersion, prePut, preReplayWALs, preScannerClose, preScannerNext, preScannerOpen, preStoreFileReaderOpen, preStoreScannerOpen

Field Detail

LOG

private static final org.slf4j.Logger LOG

tableName

private byte[] tableName

row

private byte[] row

ignoredFamily

private byte[] ignoredFamily

ignoredQualifier

private byte[] ignoredQualifier

addedFamily

private byte[] addedFamily

addedQualifier

private byte[] addedQualifier

changedFamily

private byte[] changedFamily

changedQualifier

private byte[] changedQualifier

preWALWriteCalled

private boolean preWALWriteCalled

postWALWriteCalled

private boolean postWALWriteCalled

preWALRestoreCalled

private boolean preWALRestoreCalled

postWALRestoreCalled

private boolean postWALRestoreCalled

preWALRollCalled

private boolean preWALRollCalled

postWALRollCalled

private boolean postWALRollCalled

Constructor Detail

SampleRegionWALCoprocessor

public SampleRegionWALCoprocessor()

Method Detail

setTestValues

public void setTestValues(byte[] tableName,
                          byte[] row,
                          byte[] igf,
                          byte[] igq,
                          byte[] chf,
                          byte[] chq,
                          byte[] addf,
                          byte[] addq)

Set values: with a table name, a column name which will be ignored, and a column name which will be added to WAL.

getWALObserver

public Optional<org.apache.hadoop.hbase.coprocessor.WALObserver> getWALObserver()

Specified by:

getWALObserver in interface org.apache.hadoop.hbase.coprocessor.WALCoprocessor

getRegionObserver

public Optional<org.apache.hadoop.hbase.coprocessor.RegionObserver> getRegionObserver()

Specified by:

getRegionObserver in interface org.apache.hadoop.hbase.coprocessor.RegionCoprocessor

postWALWrite

public void postWALWrite(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> env,
                         org.apache.hadoop.hbase.client.RegionInfo info,
                         org.apache.hadoop.hbase.wal.WALKey logKey,
                         org.apache.hadoop.hbase.wal.WALEdit logEdit)
                  throws IOException

Specified by:

postWALWrite in interface org.apache.hadoop.hbase.coprocessor.WALObserver

Throws:

IOException

preWALWrite

public void preWALWrite(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> env,
                        org.apache.hadoop.hbase.client.RegionInfo info,
                        org.apache.hadoop.hbase.wal.WALKey logKey,
                        org.apache.hadoop.hbase.wal.WALEdit logEdit)
                 throws IOException

Specified by:

preWALWrite in interface org.apache.hadoop.hbase.coprocessor.WALObserver

Throws:

IOException

preWALRestore

public void preWALRestore(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment> env,
                          org.apache.hadoop.hbase.client.RegionInfo info,
                          org.apache.hadoop.hbase.wal.WALKey logKey,
                          org.apache.hadoop.hbase.wal.WALEdit logEdit)
                   throws IOException

Triggered before HRegion when WAL is Restoreed.

Specified by:

preWALRestore in interface org.apache.hadoop.hbase.coprocessor.RegionObserver

Throws:

IOException

preWALRoll

public void preWALRoll(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> ctx,
                       org.apache.hadoop.fs.Path oldPath,
                       org.apache.hadoop.fs.Path newPath)
                throws IOException

Specified by:

preWALRoll in interface org.apache.hadoop.hbase.coprocessor.WALObserver

Throws:

IOException

postWALRoll

public void postWALRoll(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.WALCoprocessorEnvironment> ctx,
                        org.apache.hadoop.fs.Path oldPath,
                        org.apache.hadoop.fs.Path newPath)
                 throws IOException

Specified by:

postWALRoll in interface org.apache.hadoop.hbase.coprocessor.WALObserver

Throws:

IOException

postWALRestore

public void postWALRestore(org.apache.hadoop.hbase.coprocessor.ObserverContext<? extends org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment> env,
                           org.apache.hadoop.hbase.client.RegionInfo info,
                           org.apache.hadoop.hbase.wal.WALKey logKey,
                           org.apache.hadoop.hbase.wal.WALEdit logEdit)
                    throws IOException

Triggered after HRegion when WAL is Restoreed.

Specified by:

postWALRestore in interface org.apache.hadoop.hbase.coprocessor.RegionObserver

Throws:

IOException

isPreWALWriteCalled

public boolean isPreWALWriteCalled()

isPostWALWriteCalled

public boolean isPostWALWriteCalled()

isPreWALRestoreCalled

public boolean isPreWALRestoreCalled()

isPostWALRestoreCalled

public boolean isPostWALRestoreCalled()

isPreWALRollCalled

public boolean isPreWALRollCalled()

isPostWALRollCalled

public boolean isPostWALRollCalled()