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https://issues.apache.org/jira/browse/HIVE-16534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15985284#comment-15985284
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Eugene Koifman commented on HIVE-16534:
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using nextSetBig() is also linear but faster for cases where not all txn are
aborted; you'd still want to do Binary Search to find the minTxn in the
exceptions list
if there are no aborted txns, the BitSet is empty and "abortedBits.get(index)"
is always false - that is why it's the same for both.
> Add capability to tell aborted transactions apart from open transactions in
> ValidTxnList
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-16534
> URL: https://issues.apache.org/jira/browse/HIVE-16534
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Reporter: Wei Zheng
> Assignee: Wei Zheng
> Attachments: HIVE-16534.1.patch
>
>
> Currently in ValidReadTxnList, open transactions and aborted transactions are
> stored together in one array. That makes it impossible to extract just
> aborted transactions or open transactions.
> For ValidCompactorTxnList this is fine, since we only store aborted
> transactions but no open transactions.
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