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https://issues.apache.org/jira/browse/HBASE-7501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13552227#comment-13552227
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Jonathan Hsieh commented on HBASE-7501:
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important addendum to lars's comment (please correct me if I'm mistaken)
... has multi-row transactions *if all rows are on a single region*.
> Introduce MetaEditor method that both adds and deletes rows in .META. table
> ---------------------------------------------------------------------------
>
> Key: HBASE-7501
> URL: https://issues.apache.org/jira/browse/HBASE-7501
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Matteo Bertozzi
> Attachments: HBASE-7501-v0.patch, HBASE-7501-v1.patch
>
>
> In review of HBASE-7365, MetaEditor.deleteRegions() and
> MetaEditor.addRegionsToMeta() are used in
> RestoreSnapshotHandler.java.handleTableOperation() to apply changes to .META.
> I made following suggestion:
> Can we introduce new method in MetaEditor which takes List of Mutation's ?
> The Delete and Put would be grouped and then written to .META. table in one
> transaction.
> Jon responded:
> I like that idea -- then the todo/warning or follow on could refer to that
> method. When we fix it, it could get used in other multi row meta
> modifications like splits and table creation/deletion in general.
> See https://reviews.apache.org/r/8674/
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