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From "Pavan Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GIRAPH-839) NettyWorkerAggregatorRequestProcessor tries to reuse request objects
Date Sun, 02 Feb 2014 17:52:09 GMT

     [ https://issues.apache.org/jira/browse/GIRAPH-839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavan Kumar updated GIRAPH-839:
-------------------------------

    Attachment: GIRAPH-839.patch

> NettyWorkerAggregatorRequestProcessor tries to reuse request objects
> --------------------------------------------------------------------
>
>                 Key: GIRAPH-839
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-839
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Pavan Kumar
>            Assignee: Pavan Kumar
>         Attachments: GIRAPH-839.patch
>
>
> I was working on upgrading netty to 4.0.14.Final. It is mostly done, after some polishing
I will submit a patch for that soon.
> While working on the above, I discovered a bug in NettyWorkerAggregatorRequestProcessor.
The distributeAggregators method is reusing SendAggregatorsToWorkerRequest objects, which
is incorrect since each task has a different task id. It does not cause any problem with current
netty but in the new version I guess due to delayed serialization the object cannot be reused.
> Anyway, moving it inside the for loop does not cause any issues with current netty as
well.



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