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https://issues.apache.org/jira/browse/HIVE-77?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652448#action_12652448
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Joydeep Sen Sarma commented on HIVE-77:
---------------------------------------
fixed all the inline comments and moved multithreaded query harness to
QTestUtil.
> ql/src/test/org/apache/hadoop/hive/ql/QTestUtil.java:391 Where is this
> function called from?
This is a temporary hack for non-DDL related metastore issues.
also - i am actually able to run TestMTqueries succesfully now. funnily all the
metastore issues are not showing up. There were some more changes required:
- randomize hadoop execution directories for local mode execution (otherwise
there are collisions when submitting jobs concurrently)
- fix taskfactory id to be threadlocal static
> thread safe query execution
> ---------------------------
>
> Key: HIVE-77
> URL: https://issues.apache.org/jira/browse/HIVE-77
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Server Infrastructure
> Reporter: Joydeep Sen Sarma
> Assignee: Joydeep Sen Sarma
> Attachments: hive-77.patch.1, hive-77.patch.2, hive-77.patch.3
>
>
> this came up in hive-30 where there's a multithreaded hive server in the
> works. at the minimum, the sessionstate objects should be thread local
> singletons. but filing a more general bug that can cover this issue + code
> audit for any other static variables + test suite for running queries from a
> multi-threaded environment
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