non responsive on increased traffic

[petobamartin]

Hi

We are using serendipity for one of our websites. Today we posted a new article on the site and it has received a lot of traffic.

The News section has become completely unresponsive. This has happened a number of times before during high traffic. Our latest post is very important so we can't afford to just wait for it to fix itself. In the past the database/webserver were just rebooted. However in this instance it is likely that the same thing will happen again.

Is this a known issue? is there a fix?

Thanks in advanced

[yellowled]

The News section has become completely unresponsive.

I don't know about anybody else, but I can't even make sense of this without having an impression what the site's "anatomy" is. Can you please post a link to the site?

Also, more details about your server setup would probably be helpful, i.e. PHP/MySQL version, type of server and version number etc.

YL

[petobamartin]

Thanks for your response

we use
mysql5
php5
windows server (specifically CS New Media)

the installation is defaulted, just with a new skin

Quite simply, the serendipity blog falls over when traffic is very high.

I can't really give details about the url as I'm sure you understand

[yellowled]

mysql5
php5
windows server (specifically CS New Media)

I'm sure the minor version numbers for mysql and php would be interesting, as would be details on the exact windows server used. But most of all, do you have any reaction by your provider as to why this happens? After all (depending on your hosting plan), configuring the server is their responsibility.

Quite simply, the serendipity blog falls over when traffic is very high.

What -- roughly or exactly -- do you mean by "very high"?

I can't really give details about the url as I'm sure you understand

Actually, I don't.

YL

[garvinhicking]

Hi!

Please ask your server provider for possible performance improvement,s like tuning mysql query cache, decreasing TCP timeouts, using tools like APC, maybe even loadbalancing/clustering servers. Or maybe setting up a reverse proxy.

If the site is unresponsive, this would happen with any other dynamic PHP application as well under heavy load. The only action against that is horizontal scaling of the server infrastructure.

On the s9y side, you can try to disable performance intensive plugins, and maybe disable things like permission based reader privileges. The s9y settings tell you which of those can have a positive effect on performance. If you tell us the plugins you're running, I can tell you which ones of that may cause extra performance.

Also check your database table usage, maybe some tables like visitor stats or spamblock logs are large.

regards,
Garvin