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https://issues.apache.org/jira/browse/PIG-1427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitriy V. Ryaboy updated PIG-1427:
-----------------------------------

           Status: Resolved  (was: Patch Available)
    Fix Version/s: 0.8.0
       Resolution: Fixed

Committed. 

> Monitor and kill runaway UDFs
> -----------------------------
>
>                 Key: PIG-1427
>                 URL: https://issues.apache.org/jira/browse/PIG-1427
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.8.0
>            Reporter: Dmitriy V. Ryaboy
>            Assignee: Dmitriy V. Ryaboy
>             Fix For: 0.8.0
>
>         Attachments: guava-r03.jar, monitoredUdf.patch, monitoredUdf.patch, 
> PIG-1427.diff, PIG-1427.diff, PIG-1427.diff
>
>
> As a safety measure, it is sometimes useful to monitor UDFs as they execute. 
> It is often preferable to return null or some other default value instead of 
> timing out a runaway evaluation and killing a job. We have in the past seen 
> complex regular expressions lead to job failures due to just half a dozen 
> (out of millions) particularly obnoxious strings.
> It would be great to give Pig users a lightweight way of enabling UDF 
> monitoring.

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