spread[logd] scalability

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I am looking for a way to handle 5000+ req/s on 100+ serveurs. =
mod_log_spread looks like exactly the tool I need to handle this kind of =
task, but I am a little bit concerned about scalability.

I did a quick & dirty test with 1 web server + 1 logger & 2 web servers =
+ 1 logger. Web servers & logger are on different subnets, using =
multicast, with the multicast ttl changed in data_link.c. Multicast =
should be working : spmonitor reports 0 unicast retransmits.

With 1 web server, spreadlogd wrote about about 260 lines/s, and about =
370 with 2 web servers. Each web server was handling about 400 req/s.

How does spread & spreadlogd scale ? What would be the limit of spread & =
spreadlogd ?

Jean-Fran=E7ois Bustarret
eTF1 - Internet Architect
[email protected]

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