Hive sets thread's ContextClassLoader to null
---------------------------------------------
Key: HIVE-2729
URL: https://issues.apache.org/jira/browse/HIVE-2729
Project: Hive
Issue Type: Bug
Affects Versions: 0.8.1
Reporter: Carl Steinbach
>From HIVE-2163:
https://issues.apache.org/jira/browse/HIVE-2163?focusedCommentId=13188876&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13188876
{quote}
We came across this same issue in another scenario - it looks like Hive is
somewhere setting the thread's ContextClassLoader to null. I opened HADOOP-7982
to work around the issue from the Hadoop side, but I think Hive must have a bug
that causes these problems.
...
Unfortunately the other situation was integrated into some non-open-source
software, so it's not easy to reproduce. It does make use of the Hive metadata,
so my guess is that calling into some SessionState code (as described above in
this ticket) was the culprit. I did verify that the ContextClassLoader was set
to null which is what caused the problem, I just couldn't tell how it got that
way.
{quote}
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