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From "angela (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-2573) Performance of AC Evaluation
Date Wed, 17 Mar 2010 08:04:27 GMT
Performance of AC Evaluation
----------------------------

                 Key: JCR-2573
                 URL: https://issues.apache.org/jira/browse/JCR-2573
             Project: Jackrabbit Content Repository
          Issue Type: Improvement
          Components: jackrabbit-core
    Affects Versions: 2.0.0
            Reporter: angela
            Assignee: angela


1. Performance in access control evaluation
=====================================================================

 - main focus on
   > read performance
   > resource-based access control in .a.j.c/s/authorization/acl/*

 - comparison admin vs. anonymous with full permissions
 - comparision between shortcut and ACL-evaluation.
 - comparison JR 1.4 vs JR 2.0 [actually i will compare Day's CRX as it already provided
   some custom AC stuff with JR 1.4]


2. Potential Problems
=====================================================================

   I would expect the most significant problems to be found in

a) ACLProvider#retrieveResultEntries: calculating effective ACEs
     for each session separately.

b) AclPermission:
     Each instance registering an event listener in order to
     keep the result cache up to date

c) AclPermission:
     Resolution form Path to Item or to nearest existing Item 

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