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https://issues.apache.org/jira/browse/HIVE-2424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13262298#comment-13262298
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Carl Steinbach commented on HIVE-2424:
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There's a Thrift dependency on the MR classpath because we use Thrift to
serialize the query plan. As for the other dependencies, json and commons-lang
are both required by a bunch of UDFs, and javaewah is required by the UDFs that
generate bitmap indexes.
I don't think there's going to be much support for splitting these out into
separate JARs because it increases the chances of jobs failing due to
unsatisfied dependencies.
@Travis: Any chance you'd be willing to investigate the JarJar approach?
> Don't expose thrift, commons and json classes in the hive exec jar
> -------------------------------------------------------------------
>
> Key: HIVE-2424
> URL: https://issues.apache.org/jira/browse/HIVE-2424
> Project: Hive
> Issue Type: Improvement
> Components: Build Infrastructure
> Reporter: Eli Collins
>
> The hive exec jar includes exploded thrift, json, and commons lang classes.
> These may conflict with the user's classpath. This could be fixed by jar
> jaring or using shade. A mechanism that allowed a user to substitute
> alternative versions w/o recompiling might be a useful intermediate step
> (though will require the user substitute alternative versions that work w/
> Hive).
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