[jira] [Created] (HIVE-10569) Hive CLI gets stuck when hive.exec.parallel=true; and some exception happens during SessionState.start

["Rohit Agarwal (JIRA)" <ji...@apache.org>]

Rohit Agarwal created HIVE-10569:
------------------------------------

             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}}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)