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https://issues.apache.org/jira/browse/HIVE-1419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Klimontovich updated HIVE-1419:
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Attachment: corrupted_records_0.5.patch
corrupted_records_trunk.patch
> Policy on deserialization errors
> --------------------------------
>
> Key: HIVE-1419
> URL: https://issues.apache.org/jira/browse/HIVE-1419
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Serializers/Deserializers
> Affects Versions: 0.5.0
> Reporter: Vladimir Klimontovich
> Assignee: Vladimir Klimontovich
> Priority: Minor
> Fix For: 0.5.1, 0.6.0
>
> Attachments: corrupted_records_0.5.patch,
> corrupted_records_trunk.patch
>
>
> When deserializer throws an exception the whole map tasks fails (see
> MapOperator.java file). It's not always an convenient behavior especially on
> huge datasets where several corrupted lines could be a normal practice.
> Proposed solution:
> 1) Have a counter of corrupted records
> 2) When a counter exceeds a limit (configurable via
> hive.max.deserializer.errors property, 0 by default) throw an exception.
> Otherwise just log and exception with WARN level.
> Patches for 0.5 branch and trunk are attached
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