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From "Henry Saputra (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-91) Launch QueryMaster on NodeManager per query
Date Wed, 24 Jul 2013 15:21:50 GMT

    [ https://issues.apache.org/jira/browse/TAJO-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718470#comment-13718470
] 

Henry Saputra commented on TAJO-91:
-----------------------------------

I assume this is only for "standalone" mode? 
I am not sure if Tajo run with YARN, by having QueryMaster in NodeManager how can it manages
the task runner run in separate nodes?
                
> Launch QueryMaster on NodeManager per query
> -------------------------------------------
>
>                 Key: TAJO-91
>                 URL: https://issues.apache.org/jira/browse/TAJO-91
>             Project: Tajo
>          Issue Type: Sub-task
>          Components: master
>            Reporter: hyoungjunkim
>            Assignee: hyoungjunkim
>             Fix For: 0.3-incubating
>
>
> In the current implementation, TajoMaster creates a QueryMaster per qeury in same JVM.
If many queries run concurrently, TajoMaster is bottleneck.
> TajoMaster launches QueryMaster on NodeManager when query requested.

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