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https://issues.apache.org/jira/browse/HBASE-1418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716758#action_12716758
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stack commented on HBASE-1418:
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It would be good if you could do a THLogKey with the extra fields. When THBase
is running, it writes THLogKeys whether transaction or not. Would be grand if
extra stuff was only present in the THBase subclass, not up in core (Someone
else up on list was interested in being able to record their own key/values in
commit log so i'd be interested in helping out making this subclassable).
> Transacitonal improvments and fixes
> -----------------------------------
>
> Key: HBASE-1418
> URL: https://issues.apache.org/jira/browse/HBASE-1418
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: client, regionserver
> Reporter: Clint Morgan
> Assignee: Clint Morgan
> Fix For: 0.20.0
>
> Attachments: 1418-0.19-v2.diff, 1418-0.19-v3.diff, 1418-0.19.diff,
> 1418-trunk.diff
>
>
> A number of improvements and fixes to the transactional server:
> - Use a lease listener to detect and remove dead transactions
> - Handle splitting/closing during transactions
> - improve 2-phase commit protocol to save some traffic for read only commits
> - expose as a JTA resource so we can work with other transactional resources
> - additional logging
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