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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4516) Fix concurrency bug in serde/src/java/org/apache/hadoop/hive/serde2/io/TimestampWritable.java
Date Wed, 05 Jun 2013 23:25:22 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676476#comment-13676476
] 

Hudson commented on HIVE-4516:
------------------------------

Integrated in Hive-trunk-hadoop2 #226 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/226/])
    HIVE-4516 : Fix concurrency bug in serde/src/java/org/apache/hadoop/hive/serde2/io/TimestampWritable.java
(Jon Hartlaub and Navis via Ashutosh Chauhan) (Revision 1489673)

     Result = ABORTED
hashutosh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1489673
Files : 
* /hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/io/TimestampWritable.java

                
> Fix concurrency bug in serde/src/java/org/apache/hadoop/hive/serde2/io/TimestampWritable.java
> ---------------------------------------------------------------------------------------------
>
>                 Key: HIVE-4516
>                 URL: https://issues.apache.org/jira/browse/HIVE-4516
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Jon Hartlaub
>            Assignee: Jon Hartlaub
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4516.D10929.1.patch, TimestampWritable.java.patch
>
>
> A patch for concurrent use of TimestampWritable which occurs in a multithreaded scenario
(as found in AmpLab Shark).  A static SimpleDateFormat (not ThreadSafe) is used by TimestampWritable
in CTAS DDL statements where it manifests as data corruption when used in a concurrent environment.

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