[jira] [Created] (HIVE-17166) Break Locks On Timeout

["BELUGA BEHR (JIRA)" <ji...@apache.org>]

BELUGA BEHR created HIVE-17166:
----------------------------------

             Summary: Break Locks On Timeout
                 Key: HIVE-17166
                 URL: https://issues.apache.org/jira/browse/HIVE-17166
             Project: Hive
          Issue Type: New Feature
          Components: HiveServer2
    Affects Versions: 2.1.1, 1.2.2, 3.0.0
            Reporter: BELUGA BEHR


Hive supports table and partition locks by utilizing ZooKeeper to keep track.  There are several configurations related to this, including: {{hive.lock.sleep.between.retries}} and {{hive.lock.numretries}}.

I'd lile to propose a new boolean configuration that, when set, would alter the behavior of a lock timeout failure.  Instead of failing the query with an error, the configuration would direct Hive to break the lock and allow the query try to obtain a new one and proceed.

This is useful in cases where locks are leaked and erroneously left behind.  Such scenarios create permanent blocking on future queries.  This break-lock mechanism would alleviate this issue.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)