Apache2, mod_proxy slow response
Hi people,
lately I have been playing with a setup of a load-balancing front-end
webserver (a reverse-proxy) and a number of backend servers. (All
Linuxes, Proxy Server Apache2 on Debian woody)
The setup is very similar to what is described in
http://httpd.apache.org/docs-2.0/misc/rewriteguide.html (load balancing
section)
It works! But there is a severe performance impact:
If I address my backend servers directly I have response times of an
average of (very) few hundred milliseconds (tested in Apache JMeter) but
when I access through the proxy, average response time is 1.3 secs.
Even worse: out of ~50-100 accesses one takes very long: 10-60 secs.
That is not tolerable.
Has anyone ever experienced anything similar? and found a (removable)
reason? I am happy to post my config if that helps.
TIA, Alexander
--
Mit freundlichen Grüßen
Alexander Banthien
_______________________________________
Alexander Banthien
Fon: +49 (0)7661 90 35-15
Fax: +49 (0)7661 90 35-20
www.questech.de
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