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From "Stefan Guggisberg (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-169) Make Jackrabbit clusterable
Date Mon, 18 Jul 2005 09:04:11 GMT
    [ http://issues.apache.org/jira/browse/JCR-169?page=comments#action_12316027 ] 

Stefan Guggisberg commented on JCR-169:
---------------------------------------

further areas that need to be thoroughly analyzed/addressed in a 
clustering scenario:

- locking (already mentioned by walter): locks need to be syndicated/enforced
  among all nodes in the cluster
- NodeTypeRegistry: changes need to be syndicated 
- referential integrity (REFERENCE properties): changes need to be syndicated/enforced
- access rights/user management: changes need to be syndicated/enforced
- versioning: changes need to be syndicated

> Make Jackrabbit clusterable
> ---------------------------
>
>          Key: JCR-169
>          URL: http://issues.apache.org/jira/browse/JCR-169
>      Project: Jackrabbit
>         Type: New Feature
>   Components: core
>     Reporter: Marcel Reutegger
>     Priority: Minor

>
> This jira issue discusses the technical implications on the current design of Jackrabbit
to introduce clustering.
> Particularly the following areas require thorough investigation:
> - SharedItemStateManager and its cache
>     - cache integrity
>     - cache design: look aside, write through?
>     - hook for distributed cache, interface?
>     - isolation level
>     - transaction integrity within Jackrabbit, interaction with transient layer
> - VirtualItemStateProvider
>     - same strategy as SharedItemStateManager?
> - Search index
>     - single or per cluster node index?
> - Observation
> Please state more areas if needed.

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