[CentOS-mirror] Good stress tester...

florian at gruendler.net florian at gruendler.net
Sun Feb 8 12:42:48 UTC 2009

Hi there,

what makes you believe the machine is having issues when it has not been 
made public and served any load yet?

There is two software suites I know of to do automated stress test on 
applications or websites as in your scenario


But before you invest in such a license and especially time in learning how 
to use the software, you are probably better off reading logs pointing to a 
hardware failure or just doing away with the machine. A mirror is an ideal 
environment to "just see when it fails" and have some network load normal 
websites don't see. It won't hurt anybody, the built in failover in yum will 
just pick another mirror if the mirror machine goes down or stops serving 
requests due to overload.

Sorry for being nearly cynical, but your e-mail address points to a network 
company and I suppose there is some people who back up the offerings with 
actual know-how do diagnose issues once they happen. You needn't worry about 
the design of the mirror as it has been a proven concept working well for 
many of us. Be confident, roll it out and let it happen, whatever it be.


----- Original Message ----- 
From: "Kate Gerry" <kate at oc3networks.com>
To: "Mailing list for CentOS mirrors." <centos-mirror at centos.org>
Sent: Sunday, February 08, 2009 4:40 AM
Subject: Re: [CentOS-mirror] Good stress tester...

> The reason I ask is I'm unsure if the machine is having issues and I'd
> like to see if it's a machine issue or what.
> Also, I sure hope there aren't any issues... It's a RAID5 on a gigabit
> uplink.
> --
> Kate Gerry
> OC3 Networks & Web Solutions
> 530 W 6th Street #901
> Los Angeles, CA 90014
> kate at oc3networks.com
> -----Original Message-----
> From: centos-mirror-bounces at centos.org
> [mailto:centos-mirror-bounces at centos.org] On Behalf Of
> mirror-maintainer at mirror.averse.net
> Sent: Saturday, February 07, 2009 15:19
> To: Mailing list for CentOS mirrors.
> Subject: Re: [CentOS-mirror] Good stress tester...
> On Sat, 7 Feb 2009, Kate Gerry wrote:
>> I've been setting up a mirror and I would like to know if anybody has
>> any good ideas on how to stress test it without being live?
>> I'd like to be able to simulate a lot of requests from either one or
>> multiple IPs (I know I'd have to run it on more than one system)
>> Please let me know as I'm not sure if it's working correctly as of
> yet!
> IMO, real world traffic for static files (ie, normal mirror servers) are
> unlikely to stress mirrors much. The bottleneck is likely to be
> available
> bandwidth, I/O, or possibly RAM/available threads/file descriptors to
> serve requests.
> Unless you're just trying to see at what the limit really is at which
> your
> server will fail...
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