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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-525) Concurrent queries hang
Date Mon, 20 Jan 2014 04:29:19 GMT

    [ https://issues.apache.org/jira/browse/TAJO-525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13876123#comment-13876123
] 

Hyunsik Choi commented on TAJO-525:
-----------------------------------

Thank you for nice finding. It is very significant clue to find and to fix the bugs.

> 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
>
>         Attachments: pstack
>
>
> 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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