Matt McCline created HIVE-25228:
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Summary: Thrift CLI Service Protocol: Watch for lack of interest
by client and kill queries faster
Key: HIVE-25228
URL: https://issues.apache.org/jira/browse/HIVE-25228
Project: Hive
Issue Type: Improvement
Reporter: Matt McCline
Assignee: Matt McCline
CONSIDER: Have Hive Server 2 monitor operations (queries) for continuing client
interest. If a client does not ask for status every 15 seconds, then
automatically kill a query and release its txn locks and job resources.
Users will experience queries cleaning up much faster (15 to 30 seconds instead
of minutes and possibly many minutes) when client communication is lost.
Cleaning up those queries prevents other queries from being blocked on
EXCLUSIVE txn locks and blocking of scheduling of their queries including
retries of the original query. Today, users can get timeouts when they retry a
query that got a connection error causing understandably upset users.
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