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Posted to issues@tajo.apache.org by "Jaehwa Jung (JIRA)" <ji...@apache.org> on 2014/08/20 03:54:18 UTC

[jira] [Created] (TAJO-1014) Implement query history server.

Jaehwa Jung created TAJO-1014:
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             Summary: Implement query history server.
                 Key: TAJO-1014
                 URL: https://issues.apache.org/jira/browse/TAJO-1014
             Project: Tajo
          Issue Type: Sub-task
          Components: tajo master
            Reporter: Jaehwa Jung


Currently, TajoMaster maintains its query history in memory. In the result, if you shut down the master, you never can find your query history. In addition, if you shut down the active master on HA mode, you never can find the history on the backup master. Because the backup master can't access the active master query history. Thus we need to implement query history server which maintains its contents on shared storage like HDFS.



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