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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15027) Refactor the way the CompactedHFileDischarger threads are created
Date Thu, 07 Jan 2016 14:33:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15087497#comment-15087497
] 

Hadoop QA commented on HBASE-15027:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12780951/HBASE-15027_7.patch
  against master branch at commit d65978fceb85dd59e7fd66e2a93832a452e4c648.
  ATTACHMENT ID: 12780951

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

    {color:green}+1 tests included{color}.  The patch appears to include 30 new or modified
tests.

    {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions
(2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.6.1 2.7.0 2.7.1)

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

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

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

                {color:red}-1 checkstyle{color}.  The applied patch generated new checkstyle
errors. Check build console for list of new errors.

    {color:green}+1 findbugs{color}.  The patch does not introduce any  new Findbugs (version
2.0.3) warnings.

    {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 site{color}.  The mvn post-site goal succeeds with this patch.

    {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.regionserver.TestHRegionReplayEvents

    {color:green}+1 zombies{color}. No zombie tests found running at the end of the build.

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/17159//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/17159//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/17159//artifact/patchprocess/checkstyle-aggregate.html

                Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/17159//console

This message is automatically generated.

> Refactor the way the CompactedHFileDischarger threads are created
> -----------------------------------------------------------------
>
>                 Key: HBASE-15027
>                 URL: https://issues.apache.org/jira/browse/HBASE-15027
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15027.patch, HBASE-15027_1.patch, HBASE-15027_2.patch, HBASE-15027_3.patch,
HBASE-15027_3.patch, HBASE-15027_4.patch, HBASE-15027_5.patch, HBASE-15027_6.patch, HBASE-15027_7.patch
>
>
> As per suggestion given over in HBASE-14970, if we need to create a single thread pool
service for the CompactionHFileDischarger we need to create an exectuor service in the RegionServer
level and create discharger handler threads (Event handlers) and pass the Event to the new
Exectuor service that we create  for the compaction hfiles discharger. What should be the
default number of threads here?  If a HRS holds 100 of regions - will 10 threads be enough?
 This issue will try to resolve this with tests and discussions and suitable patch will be
updated in HBASE-14970 for branch-1 once this is committed.



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