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https://issues.apache.org/jira/browse/OAK-442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496119#comment-13496119
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Michael Dürig edited comment on OAK-442 at 11/13/12 11:28 AM:
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{{MicroKernel.commit()}} should be more specific on its merge/conflict
semantics. See also
http://wiki.apache.org/jackrabbit/Transactional%20model%20of%20the%20Microkernel%20based%20Jackrabbit%20prototype
was (Author: mduerig):
{{MicroKernel.commit()}} should be more specific on what its merge/conflict
semantics. See also
http://wiki.apache.org/jackrabbit/Transactional%20model%20of%20the%20Microkernel%20based%20Jackrabbit%20prototype
> Concurrently adding nodes fails with CommitFailedException
> ----------------------------------------------------------
>
> Key: OAK-442
> URL: https://issues.apache.org/jira/browse/OAK-442
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: jcr
> Affects Versions: 0.5
> Reporter: Marcel Reutegger
>
> Concurrently adding nodes fails with CommitFailedException with a conflict on
> the node type property index.
> oak-jcr currently does not retry commits. In some cases retries are not
> useful, e.g. if conflict markers were added by AnnotatingConflictHandler.
> However, in the case described above, the conflict is introduced by the
> property index commit hook and a commit will eventually succeed when retried
> often enough.
> There's one problem though, the MicroKernel API only specifies a generic
> MicroKernelException. JavaDoc for MicroKerne.commit() does not contain too
> much detail about the conflicting case. It currently only mentions that the
> implementation *tries* to merge non-conflicting changes. I think we need to
> be more specific here, even if we have to say it's implementation specific. A
> client needs to know what it can expect. Is an implementation allowed to
> simply overwrite a conflict? Is it a requirement to detect a conflict and
> throw an exception (and what kind of exception)?
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