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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:
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Attachment: monitoredUdf.patch
> 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
> Attachments: monitoredUdf.patch, monitoredUdf.patch
>
>
> 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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