Hyunsik Choi created TAJO-250:
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Summary: QueryMaster must send the query finish heartbeat.
Key: TAJO-250
URL: https://issues.apache.org/jira/browse/TAJO-250
Project: Tajo
Issue Type: Bug
Components: master, web UI
Reporter: Hyunsik Choi
Assignee: Hyunsik Choi
Fix For: 0.2-incubating
In the current implementation, QueryMaster only depends on its heartbeat thread
for all kinds of reports. When a query master task without any succeeded report
is moved to the finished list, the finish report may be omitted. As a result,
QueryJobManager occasionally does not update the finish state (e.g., finish
time and query state) for some queries even though the queries are already
finished. This patch fixes this bug.
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