Tobias Bocanegra created JCR-3688:
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Summary: Optimize MembershipCache invalidation
Key: JCR-3688
URL: https://issues.apache.org/jira/browse/JCR-3688
Project: Jackrabbit Content Repository
Issue Type: Bug
Components: jackrabbit-core, security
Reporter: Tobias Bocanegra
Assignee: Tobias Bocanegra
The current membership cache is invalidated entirely for every membership
change, i.e. entries that are not affected by the change are invalidated.
systems with many authorizables tend to have a full membership cache will
suffer from frequent invalidation.
The way the cache is invalidated today is based on synchronous observation
event. From the event alone it will be very inefficient to figure out all
membership changes without extra state keeping. A more direct approach is to
invalidate the membership changes directly in the cache based on the
Group.addMember(), Group.removeMember() and Group.remove() methods. If the user
manager is not autosave enabled, the invalidation needs to be delayed until the
save call.
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