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From "Trustin Lee (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DIRMINA-144) Traffic shaping filter
Date Mon, 19 Dec 2005 08:49:30 GMT
    [ http://issues.apache.org/jira/browse/DIRMINA-144?page=comments#action_12360802 ] 

Trustin Lee commented on DIRMINA-144:
-------------------------------------

If this filter goes too phat, then we could split it into more than one small filters.

Plus we need a way to limit the maximum number of unprocessed bytes, so too fast network doesn't
lead the codec implementation to throw OutOfMemoryError.

> Traffic shaping filter
> ----------------------
>
>          Key: DIRMINA-144
>          URL: http://issues.apache.org/jira/browse/DIRMINA-144
>      Project: Directory MINA
>         Type: New Feature
>     Versions: 0.9
>     Reporter: Niklas Therning
>     Priority: Minor

>
> MINA now has basic support for suspending/resuming reads and writes on an IoSession for
all transport types. We should use this feature to implement a traffic shaping filter which
lets the user configure bandwidth limitations. Both globally and for individual sessions.
Here are some configuration options I can come to think of:
> * Globally specify a maximum data rate for individual sessions (e.g. max 10 kb/s for
all sessions).
> * Specify a maximum data rate on a per session basis (e.g. max 1 Mb/s for a particular
session).
> * Specify a maximum upper limit on the bandwidth used by all sessions in total (e.g.
all sessions share a total of 10 Mb/s).
> * Configure different traffic classes with different limits to allow for high/low priority
traffic and partition sessions into these priority classes.
> I'm not sure how advanced it would have to be so please share your thoughts. Maybe point
1 and 2 would suffice? I think 3 and 4 add a lot of complexity since they need some kind of
scheduling algorithm to provide fairness between sessions.

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