[rt-users] RT : Apache Resource Usage

[Varun]

Hello Jesse

Yeah your right infact we have more than 30 concurrently users using RT and
I can't bring the number of Fastcgi processes less than 30. So I want to
make sure that will recent version of RT i.e. 3.8 will work well as far as
memory allocation is concerned and second thing I want to know is, Is it
possible to upgrade my RT on production as well and preserving the
customization and scrips we have placed over there. If not then what's the
way to achieve this backup stuff on application side and to upgrade it also.

Waiting for a valuable answer from your side.
 
Thanks & Regards
Varun Vyas


-----Original Message-----
From: Jesse Vincent [mailto:jesse at bestpractical.com] 
Sent: Friday, October 23, 2009 11:45 PM
To: Varun
Cc: rt-users at lists.bestpractical.com
Subject: Re: [rt-users] RT : Apache Resource Usage




On Thu, Oct 22, 2009 at 10:45:20AM +0530, Varun wrote:
> Hello All
> 
>  
> 
> I have RT 3.6.3 with fast cgi implemented and apache 2.0 with 8GB of
> physical RAM. My problem is that after every 3 days my physical ram gets
> fully utilized and apache starts using swap memory. So my machine gets on
> its knees. I have no other application running on my machine where I have
> apache installed and no other process is using memory when I see in top
> command its just my 30 fastcgi processes takes significant amount of RAM
i.e
> nearly 98% and I cant cut this 30 process to low level as by doing this,
> performance will degrade on concurrent request of RT users. Can any one
> suggest me how I can get best of both the worlds i.e giving good
performance
> plus limiting memory consumption also. I have RHEL 4 and its kernel
version
> is 2.6.9-42 

We've certainly done a fair bit of work on memory utilization in more
recent versions of RT. I know that recent 3.8 releases include fixes for
a number of memory leaks we've managed to track down.  30 concurrent
FastCGI processes suggests that you need to be able to handle 30 people
making requests of RT at exactly the same instant. If that's true,
you'll definitely want to come up to a more recent RT as there are a
fair number of performance improvements in addition to memory efficiency
improvements.

Best,
Jesse