Parth Chandra created DRILL-4647:
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Summary: C++ client is not propagating a connection failed error
when a drillbit goes down
Key: DRILL-4647
URL: https://issues.apache.org/jira/browse/DRILL-4647
Project: Apache Drill
Issue Type: Bug
Reporter: Parth Chandra
When a drillbit goes down, there are two conditions under which the client is
not propagating the error back to the application -
1) The application is in a submitQuery call: the ODBC driver is expecting that
the error be reported thru the query results listener which hasn't been
registered at the point the error is encountered.
2) A submitQuery call succeeded but never reached the drillbit because it was
shutdown. In this case the application has a handle to a query and is listening
for results which will never arrive. The heartbeat mechanism detects the
failure, but is not propagating the error to the query results listener.
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