[jira] Commented: (JCR-257) Use separate index for jcr:system tree

["Przemo Pakulski (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/JCR-257?page=comments#action_12370821 ] 

Przemo Pakulski commented on JCR-257:
-------------------------------------

I checked r386604 and it looks that doesn't work as expected.

Even if 'repository wide system index that contains /jcr:system tree' is not configured, following nodes are still indexed : versionLabels, versionStorage, versionHistory, version, frozenNode.

Additionally index is duplicated over all workspaces, what lead to huge index size and performance/memory problems especially if we use many workspaces.

What's interesting is that if I remove all index folders, and restart repository then all indexes are rebuilded without mentioned nodes, and indexes are much smaller then. 

> Use separate index for jcr:system tree
> --------------------------------------
>
>          Key: JCR-257
>          URL: http://issues.apache.org/jira/browse/JCR-257
>      Project: Jackrabbit
>         Type: Improvement
>     Reporter: Marcel Reutegger
>     Assignee: Marcel Reutegger
>     Priority: Minor
>      Fix For: 1.0

>
> Currently each workspace index also includes index data of repository wide data (e.g. version nodes under jcr:system). There are several drawbacks with this approach:
> - indexing is duplicated and does not scale when using a lot of workspaces
> - workspaces cannot be 'put to sleep' when they are not actively used.
> The repository should have an additional index for system data, which includes: versioning and nodetype representation in content. Basically data under /jcr:system.
> Queries issued on a workspace will then use two index to execute the query: the workspace index and the system index.

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