Hi Everyone,

Che Blogs has been cracking up these past couple of weeks under the load. What I am wondering is if anyone has any sense of the maximum load that I should be able to achieve with Roller running on a hosted system under Linux?

My setup is:

Fedora Core 2
JAVA Hotspot Server 1.5.0_09-b01
Apache 2.0.51
MySQL 4.1.21
mod_jk

Roller 2.1 incubating

The Server has 3.0G of Ram installed and 800 processes/threads are available to it. It is a "virtual dedicated server" in the language of my hosting provider.

After much hair pulling I set the my configurations to attempt to allow
250 client connections for MySQL, Apache and Roller.

The jvm is booted with the following directive:
-server -Xms256m -Xmx570m

This setup seemed to be working ok, but it has problems after a bit of time.

Today it has crashed twice because of hitting the 1024 limit on open files.

Right now it is running but I cannot access Che Blogs but I can access two other little planetplanet sites that are on the same server.

One other problem is that I cannot start the jvm with any more than Xmx570m even thought I have 3G's of ram. Once the JVM for Roller is running I cannot start another JVM with anything above a trivial amount on memory allocated to it.

I am sorry that is this so long and I realize that this is a really opened question, but I have been reading, googling, testing and tweaking for over a week now and I am at my wits end as to what more I can do.

By the way, Che Blogs has probably less than 500 blogs on it total. I am trying to confirm that number but the MySQL response is unbelievably slow. I think that is a clue ;-) Lately, it is being hit by all the search engines and several RSS basis services very heavily.

Any tuning suggestions for MySQL?

So, I will post this and please let me know if I am missing something simple so that I can get on with the other areas of my life!

Thanks for your kind consideration of this plea.


Brian





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