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https://issues.apache.org/jira/browse/PHOENIX-3569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15811572#comment-15811572
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Hadoop QA commented on PHOENIX-3569:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12846295/PHOENIX-3569.v1.patch
  against master branch at commit d8f4594989c0b73945aaffec5649a0b62ac59724.
  ATTACHMENT ID: 12846295

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new 
or modified tests.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 
43 warning messages.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines 
longer than 100

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: 
https://builds.apache.org/job/PreCommit-PHOENIX-Build/721//testReport/
Javadoc warnings: 
https://builds.apache.org/job/PreCommit-PHOENIX-Build/721//artifact/patchprocess/patchJavadocWarnings.txt
Console output: 
https://builds.apache.org/job/PreCommit-PHOENIX-Build/721//console

This message is automatically generated.

> Deadlock when updating both of local and global index
> -----------------------------------------------------
>
>                 Key: PHOENIX-3569
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3569
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.9.0, 4.8.2
>            Reporter: ChiaPing Tsai
>            Priority: Critical
>         Attachments: PHOENIX-3569.v0.patch, PHOENIX-3569.v1.patch, 
> hbase-root-regionserver-node04.ncku.edu.tw.log
>
>
> We update the global index in Observer#postBatchMutate, but the hook is 
> called before completing the mvcc.
> If ParallelWriterIndexCommitter are busy to update the local index, the other 
> updates for global index will be blocked and the mvcc of data table won't be 
> completed. The deadlock happens since the ParallelWriterIndexCommitter will 
> never complete the updates for local index.
> We can reproduce the deadlock through the following step.
> # create a data table with a local and a global index.
> # create 10+ (DEFAULT_CONCURRENT_INDEX_WRITER_THREADS) threads which disable 
> the auto commit to submit data
> # wait for the deadlock. the rs log will show the following message. "STUCK: 
> MultiVersionConcurrencyControl{readPoint=8790, writePoint=8801}"
> It seems to me that we should update the both of local and global index on 
> the hook of postPut and postDelete.
> Any suggestions are welcomed.



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