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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-4555) Locking in SimpleCachedLDAPAuthorizationMap can lead to delays in Message dispatch.
Date Fri, 24 May 2013 14:06:19 GMT
Timothy Bish created AMQ-4555:
---------------------------------

             Summary: Locking in SimpleCachedLDAPAuthorizationMap can lead to delays in Message
dispatch.
                 Key: AMQ-4555
                 URL: https://issues.apache.org/jira/browse/AMQ-4555
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.8.0, 5.7.0
            Reporter: Timothy Bish
             Fix For: 5.9.0


The SimpleCachedLDAPAuthorizationMap attempts to cache the LDAP authentication data; however,
the locking used in the update phase can lead the broker to stall message dispatch since every
caller that looks up security ACLs will wait until the update completes.  Since we are caching
the updates should occur asynchronously and only replace the existing cached values once the
update completes.  

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