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https://issues.apache.org/jira/browse/GIRAPH-105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13171900#comment-13171900
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Hudson commented on GIRAPH-105:
-------------------------------

Integrated in Giraph-trunk-Commit #52 (See 
[https://builds.apache.org/job/Giraph-trunk-Commit/52/])
    GIRAPH-105: BspServiceMaster.checkWorkers() should return empty lists
instead of null. (ssc via aching)

aching : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1220454
Files : 
* /incubator/giraph/trunk/CHANGELOG
* 
/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspServiceMaster.java

                
> BspServiceMaster.checkWorkers() should return empty lists instead of null
> -------------------------------------------------------------------------
>
>                 Key: GIRAPH-105
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-105
>             Project: Giraph
>          Issue Type: Bug
>    Affects Versions: 0.70.0
>            Reporter: Sebastian Schelter
>            Priority: Minor
>         Attachments: GIRAPH-105-2.patch, GIRAPH-105.patch
>
>
> BspServiceMaster.checkWorkers() is invoked in 
> BspServiceMaster.coordinateSuperstep() and in 
> BspServiceMaster.createInputSplits(). Both check for an empty list to fail 
> the job in case something has gone wrong. However, checkWorkers() returns 
> null in case of problems, causing an NPE in the calling code.

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