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https://issues.apache.org/jira/browse/TAJO-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718482#comment-13718482
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hyoungjunkim commented on TAJO-91:
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This subtask is first step. I mentioned implementation step in design draft.
QueryMaster launched as ApplicationMaster of YARN.
After run QueryMaster, QueryMaster request resource to YARN ResourceManager and
launch Workers.
> 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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