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Posted to dev@tajo.apache.org by "Min Zhou (JIRA)" <ji...@apache.org> on 2014/01/20 03:02:19 UTC

[jira] [Created] (TAJO-525) Concurrent queries hang

Min Zhou created TAJO-525:
-----------------------------

             Summary: Concurrent queries hang
                 Key: TAJO-525
                 URL: https://issues.apache.org/jira/browse/TAJO-525
             Project: Tajo
          Issue Type: Bug
    Affects Versions: 0.8-incubating
            Reporter: Min Zhou
            Priority: Critical
             Fix For: 0.8-incubating


When I run a simple query "select count(1) from lineitem;" in one tsql session and after that run the 2nd query in another tsql session.  The 2nd one hung.  
After the 1st one done,  the 2nd one still stuck at 0%.

After that, run the same query in the first tsql session, the 3rd query also hung.  



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