[
https://issues.apache.org/jira/browse/HBASE-12751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14903923#comment-14903923
]
Hudson commented on HBASE-12751:
--------------------------------
FAILURE: Integrated in HBase-TRUNK #6831 (See
[https://builds.apache.org/job/HBase-TRUNK/6831/])
HBASE-12751 Allow RowLock to be reader writer (stack: rev
2c83d8a263ee7c6751448bcc72868da86757f7f2)
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMultiVersionConcurrencyControlBasic.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALReaderOnSecureWAL.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestReplicationSourceManager.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestReplicasClient.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBulkLoad.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALUtil.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestAtomicOperation.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionReplicaFailover.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALFactory.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestDefaultWALProviderWithHLogKey.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/wal/FaultyFSLog.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestSecureWAL.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MultiVersionConcurrencyControl.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestPerColumnFamilyFlush.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestWALRecordReader.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestSplitLogManager.java
*
hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/model/NamespacesModel.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFileRefresherChore.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALActionsListener.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestReplicationWALReaderManager.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/security/visibility/TestVisibilityLabelsWithDistributedLogReplay.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestDefaultWALProvider.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/procedure/TestServerCrashProcedure.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEdit.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestDistributedLogSplitting.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/HashedBytes.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/ReplayHLogKey.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALKey.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestLogRollingNoCluster.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMultiVersionConcurrencyControl.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlockIndex.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DisabledWALProvider.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WAL.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/SequenceFileLogReader.java
*
hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/model/NamespacesInstanceModel.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestWALObserver.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogKey.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWALLockup.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverStacking.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/TestFullLogReconstruction.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestFSHLog.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/coordination/ZKSplitLogManagerCoordination.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestLogRollAbort.java
> Allow RowLock to be reader writer
> ---------------------------------
>
> Key: HBASE-12751
> URL: https://issues.apache.org/jira/browse/HBASE-12751
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 2.0.0, 1.3.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 2.0.0, 1.3.0
>
> Attachments: 12751.rebased.v25.txt, 12751.rebased.v26.txt,
> 12751.rebased.v26.txt, 12751.rebased.v27.txt, 12751.rebased.v29.txt,
> 12751.rebased.v31.txt, 12751.rebased.v32.txt, 12751.rebased.v32.txt,
> 12751.rebased.v33.txt, 12751.rebased.v34.txt, 12751.rebased.v35.txt,
> 12751.rebased.v35.txt, 12751.rebased.v35.txt, 12751.v37.txt, 12751.v38.txt,
> 12751.v39.txt, 12751.v40.txt, 12751.v41.txt, 12751v22.txt, 12751v23.txt,
> 12751v23.txt, 12751v23.txt, 12751v23.txt, 12751v36.txt, HBASE-12751-v1.patch,
> HBASE-12751-v10.patch, HBASE-12751-v10.patch, HBASE-12751-v11.patch,
> HBASE-12751-v12.patch, HBASE-12751-v13.patch, HBASE-12751-v14.patch,
> HBASE-12751-v15.patch, HBASE-12751-v16.patch, HBASE-12751-v17.patch,
> HBASE-12751-v18.patch, HBASE-12751-v19 (1).patch, HBASE-12751-v19.patch,
> HBASE-12751-v2.patch, HBASE-12751-v20.patch, HBASE-12751-v20.patch,
> HBASE-12751-v21.patch, HBASE-12751-v3.patch, HBASE-12751-v4.patch,
> HBASE-12751-v5.patch, HBASE-12751-v6.patch, HBASE-12751-v7.patch,
> HBASE-12751-v8.patch, HBASE-12751-v9.patch, HBASE-12751.patch
>
>
> Right now every write operation grabs a row lock. This is to prevent values
> from changing during a read modify write operation (increment or check and
> put). However it limits parallelism in several different scenarios.
> If there are several puts to the same row but different columns or stores
> then this is very limiting.
> If there are puts to the same column then mvcc number should ensure a
> consistent ordering. So locking is not needed.
> However locking for check and put or increment is still needed.
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