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https://issues.apache.org/jira/browse/HIVE-21226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16803101#comment-16803101
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Denys Kuzmenko commented on HIVE-21226:
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[~vgumashta], [~pvary] do you know if this is still relevant?
My understanding was that we are now using ValidTxnWriteIdList, so there won't
be anything related to ReadOnly transactions. Do I miss something? Is there
some particular scenario where we would benefit from this optimization?
> Exclude read-only transactions from ValidTxnList
> ------------------------------------------------
>
> Key: HIVE-21226
> URL: https://issues.apache.org/jira/browse/HIVE-21226
> Project: Hive
> Issue Type: Improvement
> Components: Transactions
> Affects Versions: 3.0.0
> Reporter: Eugene Koifman
> Assignee: Denys Kuzmenko
> Priority: Major
>
> Once HIVE-21114 is done, we should make sure that ValidTxnList doesn't
> contain any read-only txns in the exceptions list since by definition there
> is no data tagged with such txnid.
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