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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12731) Heap occupancy based client pushback
Date Thu, 22 Jan 2015 21:15:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14288235#comment-14288235
] 

Hadoop QA commented on HBASE-12731:
-----------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12693967/HBASE-12731.patch
  against master branch at commit 319f9bb7918af8cfe7e65f97b654f37f0d5983f3.
  ATTACHMENT ID: 12693967

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

    {color:green}+1 tests included{color}.  The patch appears to include 10 new or modified
tests.

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

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

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

    {color:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle 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 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/12555//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/12555//console

This message is automatically generated.

> Heap occupancy based client pushback
> ------------------------------------
>
>                 Key: HBASE-12731
>                 URL: https://issues.apache.org/jira/browse/HBASE-12731
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 2.0.0, 0.98.10, 1.1.0
>
>         Attachments: HBASE-12731-0.98.patch, HBASE-12731-0.98.patch, HBASE-12731.patch,
HBASE-12731.patch, HBASE-12731.patch, HBASE-12731.patch
>
>
> If the heap occupancy of a RegionServer is beyond a configurable high water mark (suggestions:
95%, 98%) then we should reject all user RPCs and only allow administrative RPCs until occupancy
has dropped below a configurable low water mark (suggestions: 92%). 
> Implement building on the HBASE-5162 changes.
> It might be expensive to check heap occupancy, in which case we can sample it periodically
with a chore and use the last known value in pushback calculations. 



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