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From "Parth Chandra (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4647) C++ client is not propagating a connection failed error when a drillbit goes down
Date Sat, 30 Apr 2016 00:19:12 GMT
Parth Chandra created DRILL-4647:
------------------------------------

             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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