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https://issues.apache.org/jira/browse/GIRAPH-302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13436645#comment-13436645
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Hudson commented on GIRAPH-302:
-------------------------------
Integrated in Giraph-trunk-Commit #176 (See
[https://builds.apache.org/job/Giraph-trunk-Commit/176/])
GIRAPH-302: Thread safety issue with sending partitions around. (aching via
apresta) (Revision 1374192)
Result = FAILURE
apresta :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1374192
Files :
* /giraph/trunk/CHANGELOG
* /giraph/trunk/src/main/java/org/apache/giraph/graph/BspServiceWorker.java
> Thread safety issue with sending partitions around
> --------------------------------------------------
>
> Key: GIRAPH-302
> URL: https://issues.apache.org/jira/browse/GIRAPH-302
> Project: Giraph
> Issue Type: Bug
> Reporter: Avery Ching
> Assignee: Avery Ching
> Priority: Critical
> Attachments: GIRAPH-302.patch
>
>
> When calling sendPartitionRequest(), we clear the vertex list afterward,
> making it a race!
> I noticed this when I was running with 300 workers and the number of edges
> wasn't what I expected. Sometimes we get empty requests!
> After digging into the code I found the issue and have fixed it.
> Giraph Stats Aggregate edges 99,971,220 0 99,971,220
> Superstep 11 0 11
> Current workers 300 0 300
> Last checkpointed superstep 0 0 0
> Current master task partition 0 0 0
> Sent messages 0 0 0
> Aggregate finished vertices 10,000,000 0 10,000,000
> Aggregate vertices 10,000,000 0 10,000,000
> This is wrong!
> Giraph Stats Aggregate edges 100,000,000 0 100,000,000
> Superstep 11 0 11
> Last checkpointed superstep 0 0 0
> Current workers 300 0 300
> Current master task partition 0 0 0
> Sent messages 0 0 0
> Aggregate finished vertices 10,000,000 0 10,000,000
> Aggregate vertices 10,000,000 0 10,000,000
> Fixed!
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