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https://issues.apache.org/jira/browse/OAK-638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger updated OAK-638:
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Attachment: OAK-638.patch
Initial patch.
All tests pass including integration tests, but I had to change
SecurityProviderImpl as well. ACLTest would otherwise fail most of the time but
not always with 'Unknown principal admin'. I'm not sure if it has to do with my
changes or the way initial content is indexed.
> Avoid branch/merge for small commits
> ------------------------------------
>
> Key: OAK-638
> URL: https://issues.apache.org/jira/browse/OAK-638
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Marcel Reutegger
> Priority: Minor
> Attachments: OAK-638.patch
>
>
> The branch/merge features on the MicroKernel were initially introduced to
> stage changes of large commits. Currently oak-core creates a branch even for
> small changes like updating a property. I think this introduces quite some
> overhead for scenarios with highly concurrent updates. E.g. think of a
> twitter like application or a forum with comments. Well, basically user
> generated content. These update tend to be rather small (couple of nodes) but
> frequent and concurrent.
> Right now oak-core always does:
> - MK.branch()
> - MK.commit() to branch
> - MK.merge()
> For small commits, it ideally should do:
> - MK.commit() to trunk
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