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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-680) Add new access method to a copy of a block's replica
Date Wed, 14 Oct 2009 07:34:31 GMT

    [ https://issues.apache.org/jira/browse/HDFS-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765448#action_12765448
] 

Hadoop QA commented on HDFS-680:
--------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12422055/replicaClone.patch
  against trunk revision 824984.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 9 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    -1 javac.  The applied patch generated 19 javac compiler warnings (more than the trunk's
current 18 warnings).

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/64/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/64/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/64/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/64/console

This message is automatically generated.

> Add new access method to a copy of a block's replica
> ----------------------------------------------------
>
>                 Key: HDFS-680
>                 URL: https://issues.apache.org/jira/browse/HDFS-680
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 0.21.0
>            Reporter: Konstantin Boudnik
>            Assignee: Konstantin Shvachko
>             Fix For: 0.21.0
>
>         Attachments: replicaClone.patch, replicaClone.patch
>
>
> Sometimes tests (and perhaps other client applications) might need an access to the state
of a block's replica.
> Currently it is accessible through  {{FSDataset}} member of {{DataNode}} class. However,
{{FSDataset}} is an internal matter of {{DataNode}} and shouldn't be available externally.
> This JIRA will provide new getter method which will be returning a copy of a block's
replica instead of a reference to an actual replica. 

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