[jira] [Created] (DRILL-1592) Detect drillbit failure and cancel running queries.

["Jinfeng Ni (JIRA)" <ji...@apache.org>]

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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