On Tue, 2005-10-18 at 16:45 -0700, Greg Retkowski wrote:
> Hello Everyone,
> I've looked in the usual places but can't find an answer to this
> question, so I figured I'd pose it here to lots of folks who've got real
> world experience in this area. I have a farm of around 50 machines,
> growing rapidly, using yum to perform system package installation and
> updates. We are moving our yum repository to a new machine so it's a
> good time to evaluate if we want to stick with running our repository
> over NFS. From a purely performance standpoint is it better to have a
> Yum repository run from NFS or over HTTP? I'd love to hear some
> experiences from folks running yum repositories for clusters and what
> they have learned on this issue.
Greg,
To be honest, we never even tested NFS since we have over 4,000 yum
clients spread across the globe. Currently, about 1/3 go over a WAN
connection to our yum HTTP servers which are a 3-node load-balanced web
farm. We didn't set up the load-balanced farm for scalability, just
reliability. Plus, this web farm houses a bunch of other internal
applications geared towards Linux.
I think we all know that NFS over the WAN usually performs horribly, so
we didn't consider it :) In the case of your cluster, if they're all
in the same data center or lab, I don't know why you would choose one
over the other except if you also want to use HTTP load balancing.
/Brian/
--
Brian Long | | |
IT Data Center Systems | .|||. .|||.
Cisco Linux Developer | ..:|||||||:...:|||||||:..
Phone: (919) 392-7363 | C i s c o S y s t e m s
