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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-4555) Locking in SimpleCachedLDAPAuthorizationMap can lead to delays in Message dispatch.
Date Fri, 24 May 2013 14:28:21 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish resolved AMQ-4555.
-------------------------------

    Resolution: Fixed
      Assignee: Timothy Bish

Fixed on trunk. 
                
> 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: 5.7.0, 5.8.0
>            Reporter: Timothy Bish
>            Assignee: 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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