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From "Peter Firmstone (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (RIVER-323) DynamicPolicyProvider - Concurrency
Date Fri, 10 Feb 2012 11:59:59 GMT

     [ https://issues.apache.org/jira/browse/RIVER-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Peter Firmstone resolved RIVER-323.

       Resolution: Fixed
    Fix Version/s: River_2.2.1
> DynamicPolicyProvider - Concurrency
> -----------------------------------
>                 Key: RIVER-323
>                 URL: https://issues.apache.org/jira/browse/RIVER-323
>             Project: River
>          Issue Type: Improvement
>          Components: net_jini_security
>         Environment: All
>            Reporter: Peter Firmstone
>            Assignee: Peter Firmstone
>            Priority: Minor
>             Fix For: River_2.2.1
>         Attachments: Concurrent_and_Revokeable_Permissions_Version6.patch
>   Original Estimate: 40h
>  Remaining Estimate: 40h
> From the river-dev mail list:
> I have been looking into some seemingly slow responses in several clients running simultaneously,
and I see in some stack traces that there are synchronization points in DynamicPolicyProvider.implies()
that seem to be heavily contended.  We probably need to revisit this class and rewrite it
to use copy on write mutation so that reads (the majority of activity) are completely uncontended.
> Any thoughts or experience with this issue?
> Gregg Wonderly

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