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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5569) TestAtomicOperation.testMultiRowMutationMultiThreads fails occasionally
Date Wed, 14 Mar 2012 19:46:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229549#comment-13229549
] 

Hadoop QA commented on HBASE-5569:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12518357/5569.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to introduce 161 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

     -1 core tests.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.mapreduce.TestImportTsv
                  org.apache.hadoop.hbase.mapred.TestTableMapReduce
                  org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/1188//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/1188//artifact/trunk/patchprocess/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/1188//console

This message is automatically generated.
                
> TestAtomicOperation.testMultiRowMutationMultiThreads fails occasionally
> -----------------------------------------------------------------------
>
>                 Key: HBASE-5569
>                 URL: https://issues.apache.org/jira/browse/HBASE-5569
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Minor
>         Attachments: 5569.txt, TestAtomicOperation-output.trunk_120313.rar
>
>
> What I pieced together so far is that it is the *scanning* side that has problems sometimes.
> Every time I see a assertion failure in the log I see this before:
> {quote}
> 2012-03-12 21:48:49,523 DEBUG [Thread-211] regionserver.StoreScanner(499): Storescanner.peek()
is changed where before = rowB/colfamily11:qual1/75366/Put/vlen=6,and after = rowB/colfamily11:qual1/75203/DeleteColumn/vlen=0
> {quote}
> The order of if the Put and Delete is sometimes reversed.
> The test threads should always see exactly one KV, if the "before" was the Put the thread
see 0 KVs, if the "before" was the Delete the threads see 2 KVs.
> This debug message comes from StoreScanner to checkReseek. It seems we still some consistency
issue with scanning sometimes :(

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