Sudheesh Katkam created DRILL-3190:
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Summary: Invalid FragmentState transition from
CANCELLATION_REQUESTED in QueryManager
Key: DRILL-3190
URL: https://issues.apache.org/jira/browse/DRILL-3190
Project: Apache Drill
Issue Type: Bug
Components: Execution - Flow
Reporter: Sudheesh Katkam
Assignee: Sudheesh Katkam
Fix For: 1.1.0
If a fragment is cancelled as soon as it starts running, there are two state
change messages that are reported to the QueryManager: transition to RUNNING
and transition to CANCELLATION_REQUESTED.
The order of receiving these messages is not guaranteed because the messages
*can be* reported from different threads. The
QueryManager#FragmentStateListener does not check for a transition from
CANCELLATION_REQUESTED to RUNNING. This state change should not happen in
FragmentData#setStatus.
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