[f-nsp] serveriron XL loadbalancer using 100% cpu

[David Morehead]

there are only 2 virtual IPs and on is for a group of 14 real servers 1 
is for a group of 2 real servers but as i said there are hundreds of 
websites running on these ips.  I checked the memory and there is free 
memory so im still kind of stumped.

Dynamic memory pool size:              29128800
    Free memory size:            12043866

thanks
dave

Timothy Arnold wrote:

> Dave,
>
> Just wondering how many virtual IP addresses you have set-up? And how 
> many connections per second you are getting? The XL max throughput is 
> 900 mpbs according to technical specs.
>
> I guess you could look at memory also?
>
> HTH
> Tim
>
> ----- Original Message ----- From: "David Morehead" <morehead at choopa.com>
> To: <foundry-nsp at puck.nether.net>
> Sent: Friday, May 06, 2005 7:29 PM
> Subject: [f-nsp] serveriron XL loadbalancer using 100% cpu
>
>
>> My company recently purchased a serverironxl loadbalancer (16 ports with
>> 1 gigabit fiber port) we attached 16 webservers to the device and setup
>> the virtual and real servers appropriately everything was running fine
>> with the servers running stand alone no loadbalancing. Once we changed
>> dns to use the loadbalanced ips the cpu went to 99% and download speeds
>> decreased significantly. It was pushing about 700 mbits before
>> loadbalancing was turned on after we started using the load balancing
>> traffic went down 30%, there are a few hundred websites running on all
>> these servers.
>>
>> So im wondering if this is just to much for the device to handle? I
>> would think it should not be a problem for it but im no expert. we have
>> another server iron pushing over 780 mbits but with fewer sites behind
>> it. So could it be the large number of sites overwhelming the device?
>> its running firmware ver Version 07.3.05T12
>>
>> thanks in advance for any help
>> dave
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