You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2015/10/13 22:49:05 UTC

[jira] [Created] (HIVE-12164) Remove jdbc stats collection mechanism

Ashutosh Chauhan created HIVE-12164:
---------------------------------------

             Summary: Remove jdbc stats collection mechanism
                 Key: HIVE-12164
                 URL: https://issues.apache.org/jira/browse/HIVE-12164
             Project: Hive
          Issue Type: Task
          Components: Statistics
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


Though there are some deployments using it, usually its painful to setup since a valid hive-site.xml is needed on all task nodes (containing connection details) and for large tasks (with thousands of tasks) results in a scalability issue with all of them hammering DB at nearly same time.
Because of these pain points alternative stats collection mechanism were added. FS stats based system is default for some time.
We should remove jdbc stats collection mechanism as it needlessly adds complexity in TS and FS operators w.r.t key handling.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)