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https://issues.apache.org/jira/browse/HIVE-3809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547947#comment-13547947
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Hudson commented on HIVE-3809:
------------------------------
Integrated in Hive-trunk-hadoop2 #54 (See
[https://builds.apache.org/job/Hive-trunk-hadoop2/54/])
HIVE-3809 : Concurrency issue in RCFile: multiple threads can use the same
decompressor (Mikhail Bautin via Ashutosh Chauhan) (Revision 1426524)
Result = ABORTED
hashutosh :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1426524
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
> Concurrency issue in RCFile: multiple threads can use the same decompressor
> ---------------------------------------------------------------------------
>
> Key: HIVE-3809
> URL: https://issues.apache.org/jira/browse/HIVE-3809
> Project: Hive
> Issue Type: Bug
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Priority: Critical
> Fix For: 0.11.0
>
> Attachments:
> 0001-HIVE-3809-Concurrency-issue-in-RCFile-multiple-threa.patch,
> 0001-HIVE-3809-Decompressors-should-only-be-returned-to-t.patch, D7419.1.patch
>
>
> RCFile is not thread-safe, even if each reader is only used by one thread as
> intended, because it is possible to return decompressors to the pool multiple
> times by calling close on the reader multiple times. Then, different threads
> can pick up the same decompressor twice from the pool, resulting in
> decompression failures.
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