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https://issues.apache.org/jira/browse/HIVE-9993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365946#comment-14365946
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Szehon Ho commented on HIVE-9993:
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+1, good we caught it
> Retrying task could use cached bad operators [Spark Branch]
> -----------------------------------------------------------
>
> Key: HIVE-9993
> URL: https://issues.apache.org/jira/browse/HIVE-9993
> Project: Hive
> Issue Type: Bug
> Affects Versions: spark-branch
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
> Fix For: spark-branch
>
> Attachments: HIVE-9993.1-spark.patch
>
>
> For a Spark task, it could be retried on the same executor in case some
> failures. In retrying, the cache task could be used. Since the operators in
> the task are already initialized, they won't be initialized again. The
> partial data in these operators could lead to wrong final results.
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