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https://issues.apache.org/jira/browse/HIVE-6347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V updated HIVE-6347:
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Attachment: HIVE-6347.1.patch
Patch which applies over HIVE-6346 on hive/tez branch
> ZeroCopy read path for ORC RecordReader
> ---------------------------------------
>
> Key: HIVE-6347
> URL: https://issues.apache.org/jira/browse/HIVE-6347
> Project: Hive
> Issue Type: Bug
> Components: File Formats
> Affects Versions: tez-branch
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: HIVE-6347.1.patch
>
>
> ORC can use the new HDFS Caching APIs and the ZeroCopy readers to avoid extra
> data copies into memory while scanning files.
> Implement ORC zcr codepath and a hive.orc.zerocopy flag.
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