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From Thorsten von Eicken <>
Subject keep-alive & shedding load
Date Sun, 13 Jan 2002 01:54:32 GMT
We're running into resource problems with apache 1.3. We are currently 
serving between 100 and 150 requests/sec. The cpu usage is below 25% (quad 
sun solaris box) but we have some 600-odd apache processes running. Our 
current config allows up to 1000 processes, but we have "only" 1GB of 
memory and at some point soon it will start swapping. Looking at the 
server-status, it seems that the majority of the processes are actually 
just in the keep-alive state, which currently has a timeout of 15 seconds. 
Clearly we can reduce the timeout, but is seems it would be great if apache 
simply started recycling processes in keep-alive state if it runs out of 
processes. Does it do that? Will 2.0 do that? I haven't had the time to dig 
into the code to see whether there is any such load shedding algorithm, so 
if someone knows the answer, that would be great.

Thorsten von Eicken                              Phone: (805) 690-6445
5385 Hollister Ave #111                     Fax:   (805) 964-6103
Santa Barbara, CA 93111                     Cell:  (805) 403-0982

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