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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14041) Client MetaCache is cleared if a ThrottlingException is thrown
Date Thu, 09 Jul 2015 07:30:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620042#comment-14620042
] 

Hadoop QA commented on HBASE-14041:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12744408/0001-Do-not-clear-MetaCache-if-a-ThrottlingException-is-t-v3.patch
  against master branch at commit 41c8ec7aeae859808a217bd7a561e81be7e3c7ac.
  ATTACHMENT ID: 12744408

    {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 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 2.7.0)

    {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: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 post-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/14715//testReport/
Release Findbugs (version 2.0.3) 	warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/14715//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/14715//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/14715//console

This message is automatically generated.

> Client MetaCache is cleared if a ThrottlingException is thrown
> --------------------------------------------------------------
>
>                 Key: HBASE-14041
>                 URL: https://issues.apache.org/jira/browse/HBASE-14041
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 1.1.0
>            Reporter: Eungsop Yoo
>            Assignee: Eungsop Yoo
>            Priority: Minor
>         Attachments: 0001-Do-not-clear-MetaCache-if-a-ThrottlingException-is-t-v2.patch,
0001-Do-not-clear-MetaCache-if-a-ThrottlingException-is-t-v3.patch, 0001-Do-not-clear-MetaCache-if-a-ThrottlingException-is-t.patch
>
>
> During performance test with the request throttling, I saw that hbase:meta table had
been read a lot. Currently the MetaCache of the client is cleared, if a ThrottlingException
is thrown. It seems to be not needed.



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