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Posted to dev@tajo.apache.org by "Min Zhou (JIRA)" <ji...@apache.org> on 2014/01/20 03:57:19 UTC

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

     [ https://issues.apache.org/jira/browse/TAJO-525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Min Zhou updated TAJO-525:
--------------------------

    Attachment: pstack

> 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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