Jinfeng Ni created DRILL-1592:
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Summary: Detect drillbit failure and cancel running queries.
Key: DRILL-1592
URL: https://issues.apache.org/jira/browse/DRILL-1592
Project: Apache Drill
Issue Type: Bug
Reporter: Jinfeng Ni
Assignee: Jinfeng Ni
When Drillbit dies or was killed, the running queries might be hang there, and
the sqlline would also hang there. There are two cases:
1. The Drillbit having the foreman dies, or the foreman thread dies, but the
rest of non-root fragments are still running, even though the connection
between the client and the foreman has been lost.
2. The Drillbit running the non-root fragments dies, but foreman and other
non-root fragments are still running.
In either cases, Drill should have a way to detect such node failure, and
cancel the running queries, and return to a state where client could submit a
new query, or re-connect (if connection is lost in case foreman dies) to a
different foreman.
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