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https://issues.apache.org/jira/browse/JCR-954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting updated JCR-954:
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Fix Version/s: (was: 1.4)
Dropping from 1.4. I think we definitely should support Przemo's use case, but
with two -1s on table we either need more discussion or an alternative proposal
for implementing this.
> Allow to disable referential integrity checking for workspace
> -------------------------------------------------------------
>
> Key: JCR-954
> URL: https://issues.apache.org/jira/browse/JCR-954
> Project: Jackrabbit
> Issue Type: New Feature
> Components: jackrabbit-core
> Reporter: Przemo Pakulski
> Attachments: JCR-954-patch.txt
>
>
> Some operations like clone, remove operating on huge subtree of nodes
> requires a lot of memory. To copy, clone, remove subtree all nodes are loaded
> into transient spaces. It allows such operations to be transactional, from
> other side it requires a lot of heap size and this memory size is directly
> dependent on the size of subtree (number of nodes). In result of this in some
> cases it is impossible to make such operations in one step. In our
> environment sometimes 1 GB of java heap is not enough to succesfully clone
> subtree from one workspace to another.
> You can always clone (copy, remove) tree in chunks, but if you have
> references between subtrees such approach fails. Possibilty of temporary
> disabling referential integrity checking for experienced JCR user could be
> very usefull then.
> Another use case is to allow to clone selected subtrees of the whole
> structure between worskpaces. In our application we need to clone only some
> selected subtrees from one workspace to another. But we can not do that
> because of existing references. We need to clone the whol estructure first,
> then remove all unwanted nodes, which is really time expensive and memory
> consuming.
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