[jira] [Updated] (TAJO-294) Removing dead worker from live worker list

["Keuntae Park (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAJO-294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Keuntae Park updated TAJO-294:
------------------------------

    Attachment: TAJO-294.patch

I've uploaded patch for the issue.

- When TajoMaster(ResourceManager) does not receive the heartbeat from a worker within time specified in tajo.worker.heartbeat.timeout, it changes the status of the worker as dead.
- If the dead worker resumes to send heartbeat again, TajoMaster restores the status as live.
- Add heartbeat time in web management console.
- Fix compile error of catalogview.jsp
   tableDesc.getMeta().getStat() -> tableDesc.getStats()


> Removing dead worker from live worker list
> ------------------------------------------
>
>                 Key: TAJO-294
>                 URL: https://issues.apache.org/jira/browse/TAJO-294
>             Project: Tajo
>          Issue Type: Bug
>            Reporter: Keuntae Park
>         Attachments: TAJO-294.patch
>
>
> Currently, even if a worker does not work properly,
> it remains as live and and participates in a plan.
> Web management console also displays the worker as live.
> It should be set as dead, and displaying last heartbeat time in web management console is probably helpful.
>  



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