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https://issues.apache.org/jira/browse/HIVE-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734794#action_12734794
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Namit Jain commented on HIVE-680:
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There was a internal problem recently:
One of internal custom mapper scripts was trying to split the string: probably
it expected to be in some fixed format, say a:b:c
It was not, and the process died.
The user was perfectly happy to ignore such records.
> add user constraints
> ---------------------
>
> Key: HIVE-680
> URL: https://issues.apache.org/jira/browse/HIVE-680
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Namit Jain
>
> Many times, because of a few bad input rows, the whole job fails and it takes
> a long time to debug those.
> It might be very useful to add some constraints, which can be checked while
> reading the data.
> An option can be added to ignore configurable number of bad rows.
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