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From Greg Ames <>
Subject Re: httpd-2.1.3-beta under a large DDOS attack ... not good.
Date Tue, 15 Mar 2005 14:58:07 GMT
Paul Querna wrote:

> wrote:
>> *long but interesting, I hope*

yes it is, to me anyway.

> 3) The Event MPM Might handle this load better, since it could pass off 
> the one-char a second requests to the event thread.

no doubt it could be taught to do that and provide relief for this type of 
attack.  but just to be clear it doesn't do this today.  the connection will go 
into CONN_STATE_READ_REQUEST_LINE state, get dispatched to a worker thread, and 
call ap_read_request which is unchanged from the worker or prefork mpms (i.e. 
synchronous) AFAIK.


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