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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6974) Metric for blocked updates
Date Wed, 17 Oct 2012 20:08:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13478320#comment-13478320
] 

Hadoop QA commented on HBASE-6974:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12549554/HBASE-6974-v3.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 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 82 warning messages.

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

    {color:red}-1 findbugs{color}.  The patch appears to introduce 5 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 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/3067//console

This message is automatically generated.
                
> Metric for blocked updates
> --------------------------
>
>                 Key: HBASE-6974
>                 URL: https://issues.apache.org/jira/browse/HBASE-6974
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Michael Drzal
>            Priority: Critical
>             Fix For: 0.94.3, 0.96.0
>
>         Attachments: HBASE-6974.patch, HBASE-6974-v2.patch, HBASE-6974-v3.patch
>
>
> When the disc subsystem cannot keep up with a sustained high write load, a region will
eventually block updates to throttle clients.
> (HRegion.checkResources).
> It would be nice to have a metric for this, so that these occurrences can be tracked.

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