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https://issues.apache.org/jira/browse/OAK-2586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14352769#comment-14352769
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Julian Sedding commented on OAK-2586:
-------------------------------------
Thanks for the feedback [~chetanm] and [~mduerig]. I agree that we need to make
sure that performance does not suffer from this and we should measure
performance to avoid any degradation.
I have tried to address any performance concerns by only wrapping NodeState
that need to be wrapped (i.e. only NodeStates that are themselves hidden or
have hidden descendants). Thus for the default case without any
includes/excludes, no wrapping should occur at all.
I'll see if I can come up with a way to measure performance. Ideas welcome!
> Support including and excluding paths during upgrade
> ----------------------------------------------------
>
> Key: OAK-2586
> URL: https://issues.apache.org/jira/browse/OAK-2586
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: upgrade
> Affects Versions: 1.1.6
> Reporter: Julian Sedding
> Labels: patch
> Attachments: OAK-2586.patch
>
>
> When upgrading a Jackrabbit 2 to an Oak repository it can be desirable to
> constrain which paths/sub-trees should be copied from the source repository.
> Not least because this can (drastically) reduce the amount of content that
> needs to be traversed, copied and indexed.
> I suggest to allow filtering the content visible from the source repository
> by wrapping the JackrabbitNodeState instance and hiding selected paths.
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