gcan - 8:17 pm on Dec 25, 2010 (gmt 0)
A few days ago I reinstalled one of my dedicated servers and got a new IP address. It runs Debian and Apache 2. Never had performance problems with this server.
After reinstallation everything was OK and I opened my website to the visitors. After some time i noticed that Apache periodically becames very slow. I can 10-20 clicks and pages load immediately. Then for some 2-3 minutes I can hardly open some page. Then it works fast again.
When this problem happends, everything runs fast on the server, except Apache. Server load is only ~0.2 - 0.3.
Apache configuration file has default settings and I was running this website with the same scripts and with th same Apache default settings for a long time. Never had problems.
Hostname lookups are disabled.
Any ideas? Thanks.