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https://issues.apache.org/jira/browse/HIVE-19439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16466775#comment-16466775
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Rui Li commented on HIVE-19439:
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BTW, the hash table is loaded when we init the dummy operators
[here|https://github.com/apache/hive/blob/rel/release-2.2.0/ql/src/java/org/apache/hadoop/hive/ql/exec/spark/SparkMapRecordHandler.java#L113].
> MapWork shouldn't be reused when Spark task fails during initialization
> -----------------------------------------------------------------------
>
> Key: HIVE-19439
> URL: https://issues.apache.org/jira/browse/HIVE-19439
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Reporter: Rui Li
> Priority: Major
>
> Issue identified in HIVE-19388. When a Spark task fails during initializing
> the map operator, the task is retried with the same MapWork retrieved from
> cache. This can be problematic because the MapWork may be partially
> initialized, e.g. some operators are already in INIT state.
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