Rohit Agarwal created HIVE-10569:
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Summary: Hive CLI gets stuck when hive.exec.parallel=true; and
some exception happens during SessionState.start
Key: HIVE-10569
URL: https://issues.apache.org/jira/browse/HIVE-10569
Project: Hive
Issue Type: Bug
Affects Versions: 0.13.1, 1.1.0
Reporter: Rohit Agarwal
Priority: Critical
The CLI gets stuck in the loop in [DriverContext.pollFinished |
https://github.com/apache/hive/blob/release-1.1.0/ql/src/java/org/apache/hadoop/hive/ql/DriverContext.java#L108]
when some {{TaskRunner}} which has completed has not been marked as
non-running.
This can happen when there is exception in [SessionState.start |
https://github.com/apache/hive/blob/release-1.1.0/ql/src/java/org/apache/hadoop/hive/ql/exec/TaskRunner.java#L74]
which is called from {{TaskRunner.run}}.
This happened with us when we were running with {{hive.exec.parallel=true}},
{{hive.execution.engine=tez}} and Tez wasn't correctly setup.
In this case the CLI printed the exception and then got hung (No prompt.)
A simple fix is to call {{result.setRunning(false);}} in the {{finally}} block
of {{TaskRunner.run}}
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