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https://issues.apache.org/jira/browse/FALCON-223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14146618#comment-14146618
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Venkatesh Seetharam commented on FALCON-223:
--------------------------------------------

*Classes contained within WEB-INF/lib or WEB-INF/classes have priority over 
classes on the parent class loader. This is the opposite of the normal 
behaviour of a java 2 class loader.*
-source 
http://67-23-9-112.static.slicehost.net/faq?s=250-Configuration&t=200classloading

You should be getting commaons-lang-2.6 then no?

> hive-exec bundles protobuf-2.4.1 which is incompatible with hadoop-2 
> requiring protobuf-2.5
> -------------------------------------------------------------------------------------------
>
>                 Key: FALCON-223
>                 URL: https://issues.apache.org/jira/browse/FALCON-223
>             Project: Falcon
>          Issue Type: Bug
>    Affects Versions: 0.4
>            Reporter: Venkatesh Seetharam
>            Assignee: Arpit Gupta
>            Priority: Blocker
>             Fix For: 0.4
>
>         Attachments: FALCON-223.v1.patch
>
>
> This is not an issue with hadoop-1 but only hadoop-2.
> This is fixed in hive-0.13 (HIVE-5112) but its not released yet for us to 
> upgrade. A quick fix is to change the falcon startup scripts to set the 
> hadoop classpath prior to falcon dependencies.



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