[jira] [Created] (HIVE-14739) Replace runnables directly added to runtime shutdown hooks to avoid deadlock

["Prasanth Jayachandran (JIRA)" <ji...@apache.org>]

Prasanth Jayachandran created HIVE-14739:
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             Summary: Replace runnables directly added to runtime shutdown hooks to avoid deadlock
                 Key: HIVE-14739
                 URL: https://issues.apache.org/jira/browse/HIVE-14739
             Project: Hive
          Issue Type: Bug
    Affects Versions: 2.2.0
            Reporter: Deepesh Khandelwal
            Assignee: Prasanth Jayachandran


[~deepesh] reported that a deadlock can occur when running queries through hive cli. [~cnauroth] analyzed it and reported that hive adds shutdown hooks directly to java Runtime which may execute in non-deterministic order causing deadlocks with hadoop's shutdown hooks. In one case, hadoop shutdown locked FileSystem#Cache and FileSystem.close whereas hive shutdown hook locked FileSystem.close and FileSystem#Cache order causing a deadlock. 
Hive and Hadoop has ShutdownHookManager that runs the shutdown hooks in deterministic order based on priority. We should use that to avoid deadlock throughout the code.



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