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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/06/02 10:19:59 UTC

[jira] [Updated] (HIVE-13821) OrcSplit groups all delta files together into a single split

     [ https://issues.apache.org/jira/browse/HIVE-13821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jesus Camacho Rodriguez updated HIVE-13821:
-------------------------------------------
    Fix Version/s:     (was: 2.2.0)

> OrcSplit groups all delta files together into a single split
> ------------------------------------------------------------
>
>                 Key: HIVE-13821
>                 URL: https://issues.apache.org/jira/browse/HIVE-13821
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 2.1.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Critical
>             Fix For: 2.1.0
>
>         Attachments: HIVE-13821.1.patch, HIVE-13821.2.patch
>
>
> HIVE-7428 had fix for worst case column projection size estimate. It was removed in HIVE-10397 to return file length but for ACID strategy file length is passed as 0. In worst case, this always return 0 and all files ends up in single split. 



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