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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9267) StochasticLoadBalancer goes over its processing time limit
Date Tue, 20 Aug 2013 02:05:53 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13744619#comment-13744619
] 

Hadoop QA commented on HBASE-9267:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12598879/9267-suggest.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  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.

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

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

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

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) 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 site goal succeeds with this patch.

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

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/6819//console

This message is automatically generated.
                
> StochasticLoadBalancer goes over its processing time limit
> ----------------------------------------------------------
>
>                 Key: HBASE-9267
>                 URL: https://issues.apache.org/jira/browse/HBASE-9267
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.2
>            Reporter: Jean-Daniel Cryans
>            Assignee: Elliott Clark
>             Fix For: 0.98.0, 0.95.3
>
>         Attachments: 9267-suggest-2.patch, 9267-suggest.patch, HBASE-9267-0.patch, HBASE-9267-1.patch,
HBASE-9267-2.patch
>
>
> I trying out 0.95.2, I left it running over the weekend (8 RS, average load between 12
and 3 regions) and right now the balancer runs for 12 mins:
> bq. 2013-08-19 21:54:45,534 DEBUG [jdec2hbase0403-1.vpc.cloudera.com,60000,1376689696384-BalancerChore]
org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer: Could not find a better load
balance plan.  Tried 0 different configurations in 777309ms, and did not find anything with
a computed cost less than 36.32576937689094
> It seems it slowly crept up there, yesterday it was doing:
> bq. 2013-08-18 20:53:17,232 DEBUG [jdec2hbase0403-1.vpc.cloudera.com,60000,1376689696384-BalancerChore]
org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer: Could not find a better load
balance plan.  Tried 0 different configurations in 257374ms, and did not find anything with
a computed cost less than 36.3251082542424
> And originally it was doing 1 minute.
> In the jstack I see a 1000 of these and jstack doesn't want to show me the whole thing:
> bq.  at java.util.SubList$1.nextIndex(AbstractList.java:713)

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