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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15152) Automatically include prefix-tree module in MR jobs if present
Date Fri, 22 Jan 2016 07:05:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15112035#comment-15112035
] 

Hudson commented on HBASE-15152:
--------------------------------

SUCCESS: Integrated in HBase-1.2 #517 (See [https://builds.apache.org/job/HBase-1.2/517/])
HBASE-15152 Automatically include prefix-tree module in MR jobs if (jmhsieh: rev 55229d45764215edc050938fbc63a203e86ac530)
* hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableMapReduceUtil.java


> Automatically include prefix-tree module in MR jobs if present
> --------------------------------------------------------------
>
>                 Key: HBASE-15152
>                 URL: https://issues.apache.org/jira/browse/HBASE-15152
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 1.0.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>             Fix For: 2.0.0, 1.3.0, 1.2.1, 1.1.3, 1.0.4, 0.98.18
>
>         Attachments: hbase-15152.patch
>
>
> I was running some MR jobs tests and ended up with PrefixTreeCodec class not found in
the YarnChildren processes.  
> {code}
> 2016-01-21 06:24:26,844 WARN  [main] mapreduce.TableMapReduceUtil(785): The  hbase-prefix-tree
module jar containing PrefixTreeCodec is not present.
> java.lang.ClassNotFoundException: org.apache.hadoop.hbase.code.prefixtree.PrefixTreeCodec
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> {code}
> This is related to HBASE-7434 and HBASE-7936 which address compile time concerns.  This
fix makes it so that jar inclusion is done at run time, and continues if it is not present
(for mr unit tests that don't depend on it)



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