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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4000) Hive client goes into infinite loop at 100% cpu
Date Fri, 15 Feb 2013 03:19:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashutosh Chauhan updated HIVE-4000:
-----------------------------------

    Status: Open  (was: Patch Available)

Also, Owen can you add a sample query and scenario where this problem will show up.
                
> Hive client goes into infinite loop at 100% cpu
> -----------------------------------------------
>
>                 Key: HIVE-4000
>                 URL: https://issues.apache.org/jira/browse/HIVE-4000
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.9.0
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.10.1
>
>         Attachments: HIVE-4000.D8493.1.patch
>
>
> The Hive client starts multiple threads to track the progress of the MapReduce jobs.
Unfortunately those threads access several static HashMaps that are not protected by locks.
When the HashMaps are modified, they sometimes cause race conditions that lead to the client
threads getting stuck in infinite loops.

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