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https://issues.apache.org/jira/browse/HIVE-18751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16370353#comment-16370353
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Sankar Hariappan commented on HIVE-18751:
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[~ekoifman] this was a bug in master code too where ValidTxnList configuration
(hive.txn.valid.txns) was not set for ACID tables. But, it doesn't throw
exception as we assume all data as committed and read it.
With HIVE-18192, we throw exception if ACID table scan doesn't see this config
(hive.txn.tables.valid.writeids).
So, I think, this need not be a blocker for HIVE-18192.
> 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
> Fix For: 3.0.0
>
>
> 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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