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https://issues.apache.org/jira/browse/TAJO-704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jaehwa Jung updated TAJO-704:
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Attachment: TajoMasterHAdraft.pdf
I uploaded the draft proposal.
> TajoMaster HA
> -------------
>
> Key: TAJO-704
> URL: https://issues.apache.org/jira/browse/TAJO-704
> Project: Tajo
> Issue Type: Improvement
> Components: tajo master
> Reporter: Jaehwa Jung
> Assignee: Jaehwa Jung
> Attachments: TajoMasterHAdraft.pdf
>
>
> TajoMaster is a Single Point of Failure in a Tajo Cluster because TajoMaster
> is the central controlling entity for all components of the Tajo system.
> TajoMaster failure prevents clients from submitting new queries to the
> cluster, and results in the disruption of the ability to run insert overwrite
> queries because the TajoWorker can’t apply its statistical information to
> CatalogStore. Therefore, the high-availability (HA) of TajoMaster is
> essential for the high-availability of Tajo generally.
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