Github user zjffdu commented on the issue: https://github.com/apache/zeppelin/pull/1545 @AhyoungRyu @felixcheung I changed this PR to WIP. As there's still one issue I need to fix. The issue is that if user change the udf, the class can not been reloading unless restarting the interpreter. I need to fix this classloading issue in pig side first, then I will continue this PR.
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