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https://issues.apache.org/jira/browse/JCR-2710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897746#action_12897746
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Michael Dürig commented on JCR-2710:
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Another remaining issue is scalability of collecting members a group. Currently
this is done eagerly. In order to support large number of users we need to
change this to a lazy mechanism.
> 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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