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https://issues.apache.org/jira/browse/DIRMINA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Trustin Lee closed DIRMINA-398.
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    Resolution: Fixed
      Assignee: Trustin Lee

Done.

> Change the default Map implementation of DemuxingIoHandler to 
> ConcurrentHashMap
> -------------------------------------------------------------------------------
>
>                 Key: DIRMINA-398
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-398
>             Project: MINA
>          Issue Type: Improvement
>          Components: Handler
>    Affects Versions: 1.0.3, 1.1.0
>            Reporter: Trustin Lee
>            Assignee: Trustin Lee
>            Priority: Trivial
>             Fix For: 1.0.4, 1.1.1
>
>
> DemuxingIoHandler's underlying Map implementation is a synchronized HashMap, 
> which doesn't perform well under heavy load.  It is because the map is 
> accessed by many threads at the same time.  Replacing it with a 
> ConcurrentHashMap will improve the overall performance of DemuxingIoHandler.

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