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From "anishek (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18751) ACID table scan through get_splits UDF doesn't receive ValidWriteIdList configuration.
Date Mon, 12 Mar 2018 03:55:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394792#comment-16394792
] 

anishek commented on HIVE-18751:
--------------------------------

+ 1

> ACID table scan through get_splits UDF doesn't receive ValidWriteIdList configuration.
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-18751
>                 URL: https://issues.apache.org/jira/browse/HIVE-18751
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 3.0.0
>            Reporter: Sankar Hariappan
>            Assignee: Sankar Hariappan
>            Priority: Major
>              Labels: ACID, UDF, pull-request-available
>             Fix For: 3.0.0
>
>         Attachments: HIVE-18751.01.patch
>
>
> Per table write ID (HIVE-18192) have replaced global transaction ID with write ID to
version data files in ACID/MM tables,
> To ensure snapshot isolation, need to generate ValidWriteIdList for the given txn/table
and use it when scan the ACID/MM tables.
> In case of get_splits UDF which runs on ACID table scan query won't receive it properly
through configuration (hive.txn.tables.valid.writeids) and hence throws exception. 
> TestAcidOnTez.testGetSplitsLocks is the test failing for the same. Need to fix it.
>  



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