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https://issues.apache.org/jira/browse/GIRAPH-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454088#comment-13454088
 ] 

Giraph QA commented on GIRAPH-293:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12544674/GIRAPH-293.patch
  against trunk revision 1383115.

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

    +1 tests included.  The patch appears to include 2 new or modified test 
files.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

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

    +1 checkstyle.  The patch generated 0 code style errors.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) 
warnings.

    -1 release audit.  The applied patch generated 1 release audit warnings.

    +1 core tests.  The patch passed unit tests in ..

Test results: 
https://builds.apache.org/job/PreCommit-GIRAPH-Build/39//testReport/
Release audit warnings: 
https://builds.apache.org/job/PreCommit-GIRAPH-Build/39//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Console output: https://builds.apache.org/job/PreCommit-GIRAPH-Build/39//console

This message is automatically generated.
                
> Should aggregators be checkpointed?
> -----------------------------------
>
>                 Key: GIRAPH-293
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-293
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Alessandro Presta
>            Assignee: Maja Kabiljo
>         Attachments: GIRAPH-293.patch, GIRAPH-293.patch, GIRAPH-293.patch
>
>
> As I understand, we don't include aggregators in checkpoints because they are 
> kept in the Zookeeper.
> One of our bootcampers is working on fixing TestManualCheckpoint, which 
> currently involves starting a new job from a checkpoint from a previous job*.
> If this is a functionality we want going forward, then persistent aggregators 
> should be checkpointed.
> [*] That test relies on the fact that either aggregators are checkpointed or 
> they are always reset at each superstep. None of these is happening, but the 
> error cancels out with the fact that we are not actually resuming from a 
> checkpoint, but re-running the job from scratch.

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