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From "Chuan Lei (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-747) BspServiceMaster finishes ZooKeeper cleanup without getting all workers to complete
Date Fri, 23 Aug 2013 00:45:52 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13748146#comment-13748146
] 

Chuan Lei commented on GIRAPH-747:
----------------------------------

patch added
                
> BspServiceMaster finishes ZooKeeper cleanup without getting all workers to complete
> -----------------------------------------------------------------------------------
>
>                 Key: GIRAPH-747
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-747
>             Project: Giraph
>          Issue Type: Bug
>          Components: bsp
>    Affects Versions: 1.0.0
>            Reporter: Chuan Lei
>            Assignee: Chuan Lei
>             Fix For: 1.0.0
>
>         Attachments: GIRAPH-747.v1.patch
>
>
> In BspServiceMaster, the function cleanUpZooKeeper should wait for the number of workers
and masters to complete. However, it appears that maxTasks only takes workers into consideration.
Consequently, the worker straggler may fail to report to the ZooKeeper due to the path gets
removed too early. This will cause No lease on path File does not exist exception at runtime.

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