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https://issues.apache.org/jira/browse/GIRAPH-105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Schelter updated GIRAPH-105:
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Attachment: GIRAPH-105-2.patch
updated patch to reflect aching's suggestions, ran local and pseudo distributed
unit-tests
> 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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