Keuntae Park created TAJO-294:
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Summary: 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
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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