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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1418) Transacitonal improvments and fixes
Date Fri, 05 Jun 2009 21:36:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716758#action_12716758
] 

stack commented on HBASE-1418:
------------------------------

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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