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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] Commented: (JCR-2710) Add support for large number of users in a group
Date Thu, 12 Aug 2010 12:24:18 GMT

    [ https://issues.apache.org/jira/browse/JCR-2710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897719#action_12897719

Michael Dürig commented on JCR-2710:

Committed initial implementation at revision 984740:

There is a new configuration setting for the user manager: groupMembershipSplitSize. If this
parameter is present group memberships are collected in a node structure below UserConstants#N_MEMBERS
instead of the default multi valued property UserConstants#P_MEMBERS. Its value determines
the maximum number of member properties until additional intermediate nodes are inserted.
Valid values are integers > 4.

> Add support for large number of users in a group
> ------------------------------------------------
>                 Key: JCR-2710
>                 URL: https://issues.apache.org/jira/browse/JCR-2710
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>    Affects Versions: 2.2.0
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
> In the current implementation there are several factors which limit the number of users
in a group:
> - group membership is recorded in a multi valued property which does not scale well
> - members of groups are collected eagerly which does not scale well
> I propose to add complementary support for recording group membership in a node structure
to the current solution. That node structure would - similar to users and groups - add intermediate
nodes when a group reaches a certain threshold on the number of its users.

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