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https://issues.apache.org/jira/browse/TEZ-529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14254902#comment-14254902
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Hitesh Shah commented on TEZ-529:
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[~sseth] [~hagleitn] Is this still a valid issue?
> Hive communicates state from RecordReader to Processor via JobConf
> ------------------------------------------------------------------
>
> Key: TEZ-529
> URL: https://issues.apache.org/jira/browse/TEZ-529
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.2.0
> Reporter: Gunther Hagleitner
> Assignee: Siddharth Seth
>
> Hive currently switches between operator pipelines + partition descriptors
> via a map.input.file
> In the CombineFileInputFormat case Hive relies on the fact that
> CombineFileRecordReader sets this field every time a new file is processed.
> This file will then be read in the processor to setup the correct processing
> pipeline.
> After the Tez refactor RecordReader and TezProcessor use different job conf
> instances. Because of that Hive will fail since map.input.file isn't set and
> updated in the processor's conf.
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