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https://issues.apache.org/jira/browse/HIVE-5188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13795478#comment-13795478
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Eugene Koifman commented on HIVE-5188:
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Looks like this is similar to HIVE-5547 but here we need to ship HCat jars
> MR job launched through WebHCat fails to find additional jars in classpath
> --------------------------------------------------------------------------
>
> Key: HIVE-5188
> URL: https://issues.apache.org/jira/browse/HIVE-5188
> Project: Hive
> Issue Type: Bug
> Components: WebHCat
> Affects Versions: 0.12.0
> Reporter: Deepesh Khandelwal
>
> When running MR job using jar (compiled with external dependencies eg.
> HCatInputFormat, HCatOutputFormat) through WebHCat the job fails complaining
> about missing HCat classes. I did pass those through the libjars argument but
> it seems that we run the hadoop jar locally on the tasktracker node and so it
> doesn't have the additional classes in the HADOOP_CLASSPATH. To get around
> the problem I had to explicitly add the additional jar dependencies in the
> hadoop-env.sh.
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