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https://issues.apache.org/jira/browse/HBASE-11983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14276339#comment-14276339
 ] 

Hudson commented on HBASE-11983:
--------------------------------

SUCCESS: Integrated in HBase-TRUNK #6020 (See 
[https://builds.apache.org/job/HBase-TRUNK/6020/])
HBASE-11983 HRegion constructors should not create HLog (ndimiduk: rev 
9b7f36b8cf521bcc01ac6476349a9d2f34be8bb3)
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestIntraRowPagination.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsckRepair.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingTTL.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultCompactSelection.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestColumnPrefixFilter.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/io/encoding/TestPrefixTree.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestScanner.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/RestoreSnapshotHelper.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingKeyRange.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestScanWithBloomError.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestMergeTable.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestDependentColumnFilter.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestColumnSeeking.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestPerColumnFamilyFlush.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/ModifyRegionUtils.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestFSHLog.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALFactory.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWideScanner.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestMergeTool.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionMergeTransaction.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestInvocationRecordFilter.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMultiColumnScanner.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestAtomicOperation.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestReversibleScanners.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorInterface.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMinVersions.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestCase.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilter.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransaction.java
* 
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverScannerOpenHook.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestResettingCounters.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSeekOptimizations.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverStacking.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
* 
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestMultipleColumnPrefixFilter.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java


> HRegion constructors should not create HLog 
> --------------------------------------------
>
>                 Key: HBASE-11983
>                 URL: https://issues.apache.org/jira/browse/HBASE-11983
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>            Reporter: Enis Soztutar
>            Assignee: Nick Dimiduk
>              Labels: beginner
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-11983.00-branch-1.patch, HBASE-11983.00.patch, 
> HBASE-11983.01.patch, HBASE-11983.02.patch, HBASE-11983.03.patch, 
> HBASE-11983.03.patch, HBASE-11983.04.patch, HBASE-11983.05.patch
>
>
> We should get rid of HRegion creating its own HLog. It should ALWAYS get the 
> log from outside. 
> I think this was added for unit tests, but we should refrain from such 
> practice in the future (adding UT constructors always leads to weird and 
> critical bugs down the road). See recent: HBASE-11982, HBASE-11654. 
> Get rid of weird things like ignoreHLog:
> {code}
>   /**
>    * @param ignoreHLog - true to skip generate new hlog if it is null, mostly 
> for createTable
>    */
>   public static HRegion createHRegion(final HRegionInfo info, final Path 
> rootDir,
>                                       final Configuration conf,
>                                       final HTableDescriptor hTableDescriptor,
>                                       final HLog hlog,
>                                       final boolean initialize, final boolean 
> ignoreHLog)
> {code}
> We can unify all the createXX and newXX methods and separate creating a 
> region in the file system vs opening a region. 



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