Re: overloaded webserver: nfs wait issue?

2005-12-03 Thread Norberto Meijome
N.J. Thomas wrote: * Norberto Meijome [EMAIL PROTECTED] [2005-12-02 11:06:49 +1100]: What's your MaxClients set to? It was set to 256, we actually lowered it to 180. I would have thought you'd want to increase it (after configuring everything else)...else you'll get all those nasty

overloaded webserver: nfs wait issue?

2005-12-01 Thread N.J. Thomas
We have a website with moderately high traffic, load balanced among 3 webservers. During peak traffic times however (when the volume is higher than normal), the load shoots up to over a 100, and the site crawls to its knees. We set up a script to take snapshots of top every 20 seconds. Here is

Re: overloaded webserver: nfs wait issue?

2005-12-01 Thread N.J. Thomas
* N.J. Thomas [EMAIL PROTECTED] [2005-12-01 14:38:13 -0500]: We have a website with moderately high traffic, load balanced among 3 webservers. During peak traffic times however (when the volume is higher than normal), the load shoots up to over a 100, and the site crawls to its knees. I

Re: overloaded webserver: nfs wait issue?

2005-12-01 Thread Freminlins
Can you provide the output of nfsstat -c 1 on the web servers (and nfsstat -s 1 on the nfs server if they are running FreeBSD)? Run them for a minute when you are getting bad performance. Please also quantify moderately high traffic. What is this in Mbit/s? Also, it may be helpful to know a

Re: overloaded webserver: nfs wait issue?

2005-12-01 Thread Norberto Meijome
N.J. Thomas wrote: We have a website with moderately high traffic, load balanced among 3 webservers. During peak traffic times however (when the volume is higher than normal), the load shoots up to over a 100, and the site crawls to its knees. We set up a script to take snapshots of top every

Re: overloaded webserver: nfs wait issue?

2005-12-01 Thread N.J. Thomas
* Norberto Meijome [EMAIL PROTECTED] [2005-12-02 11:06:49 +1100]: What's your MaxClients set to? It was set to 256, we actually lowered it to 180. Please define your values for lot of traffic. Running wc -l on the daily Apache access logs, I get: ~1.8million hits per day What CPU? RAM