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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8156) Support for Namenode HA for non-idempotent operations
Date Mon, 25 Mar 2013 20:29:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13613077#comment-13613077
] 

Hadoop QA commented on HBASE-8156:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12575371/HBase-8156-trunk-v4.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
tests.

    {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:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

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

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/4998//console

This message is automatically generated.
                
> Support for Namenode HA for non-idempotent operations
> -----------------------------------------------------
>
>                 Key: HBASE-8156
>                 URL: https://issues.apache.org/jira/browse/HBASE-8156
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Filesystem Integration
>    Affects Versions: 0.95.0
>            Reporter: Himanshu Vashishtha
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.98.0
>
>         Attachments: HBase-8156-trunk-v1.patch, HBase-8156-trunk-v2.patch, HBase-8156-trunk-v3.patch,
HBase-8156-trunk-v4.patch, HBase-8156-trunk-v4.patch, HBase-8156-trunk-v4.patch
>
>
> In hadoop 2 HA, non-idempotent operations are not retried at the hdfs side. This is by
design as retrying a non-idempotent operation might not be a good design choice for some use
case. 
> HBase needs to handle the retries for such operations at its end. 
> With HBase-7806, there is already some work going on for file system abstractions. There,
HReginFileSystem sits as an abstraction between region and FS. This jira is a move in the
same direction, where it adds retry functionality for non-idempotent calls such as create,
rename and delete in HRegionFileSystem class.

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