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https://issues.apache.org/jira/browse/HADOOP-3310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601218#action_12601218
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Hadoop QA commented on HADOOP-3310:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12383056/3310_20080529c.patch
  against trunk revision 661771.

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

    +1 tests included.  The patch appears to include 18 new or modified tests.

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

    +1 javac.  The applied patch does not increase the total number of javac 
compiler 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/Hadoop-Patch/2523/testReport/
Findbugs warnings: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2523/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2523/artifact/trunk/build/test/checkstyle-errors.html
Console output: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2523/console

This message is automatically generated.

> Lease recovery for append
> -------------------------
>
>                 Key: HADOOP-3310
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3310
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 3310_20080514.patch, 3310_20080516b.patch, 
> 3310_20080516c.patch, 3310_20080519.patch, 3310_20080519b.patch, 
> 3310_20080520.patch, 3310_20080521.patch, 3310_20080522b.patch, 
> 3310_20080522c.patch, 3310_20080523.patch, 3310_20080524_dhruba.patch, 
> 3310_20080527.patch, 3310_20080528.patch, 3310_20080528b.patch, 
> 3310_20080528c.patch, 3310_20080529.patch, 3310_20080529b.patch, 
> 3310_20080529c.patch
>
>
> In order to support file append, a GenerationStamp is associated with each 
> block.  Lease recovery will be performed when there is a possibility that the 
> replicas of a block in a lease may have different GenerationStamp values.
> For more details, see the documentation in HADOOP-1700.

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