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https://issues.apache.org/jira/browse/PIG-3261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621155#comment-13621155
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Koji Noguchi commented on PIG-3261:
-----------------------------------
I prefer with PIG_USER_CLASSPATH_FIRST. I've seen too many random users
including old pig jar in their custom UDFs...
In our environment, we perform QE on set of frameworks. (hadoop, pig, oozie,
etc)
And we tell our users, whenever they set HADOOP_USER_CLASSPATH_FIRST they are
running outside of the QA-ed environment. I want the same to apply within pig
with PIG_USER_CLASSPATH_FIRST.
> User set PIG_CLASSPATH entries must be prepended to the CLASSPATH, not
> appended
> -------------------------------------------------------------------------------
>
> Key: PIG-3261
> URL: https://issues.apache.org/jira/browse/PIG-3261
> Project: Pig
> Issue Type: Bug
> Components: grunt
> Affects Versions: 0.10.0
> Reporter: Harsh J
> Assignee: Harsh J
> Attachments: PIG-3261.patch, PIG-3261.patch
>
>
> Currently we are doing this wrong:
> {code}
> if [ "$PIG_CLASSPATH" != "" ]; then
> CLASSPATH=${CLASSPATH}:${PIG_CLASSPATH}
> {code}
> This means that anything added to CLASSPATH until that point will never be
> able to get overridden by a user set environment, which is wrong behavior.
> Hadoop libs for example are added to CLASSPATH, before this extension is
> called in bin/pig.
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