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From "Owen O'Malley (JIRA)" <>
Subject [jira] [Updated] (HIVE-4000) Hive client goes into infinite loop at 100% cpu
Date Mon, 11 Feb 2013 19:03:13 GMT


Owen O'Malley updated HIVE-4000:

    Status: Patch Available  (was: Open)

Replace the sets/maps with concurrent versions that protect against concurrent access from
multiple threads.
> Hive client goes into infinite loop at 100% cpu
> -----------------------------------------------
>                 Key: HIVE-4000
>                 URL:
>             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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