[OpenAFS] Re: unix owner/group of files in AFS

FB fbo2@gmx.net
Fri, 30 Mar 2007 13:25:31 +0200


On Thu, Mar 29, 2007 at 11:56:56PM -0400, Jeffrey Hutzelman wrote:

> OK; so you haven't yet tried it in an environment where scalability is an
> issue.  I have at least ten times that many clients, and my site is pretty
> small.  Ask the folks at UMich or Morgan Stanley how that would work for
> them.

I actually wrote this nss-module to provide a simple way of uid-name-resolution
for Instantafs. Instantafs is a concept for interactively creating AFS-cells
which I decided to avoid ldap for.

I never intended to use it for bigger cells but when i tried it in my ~150 PC
cell, it outperformed the ldap-uid-name-resolution - so I kept using it.

> I'll bet you also haven't tried it with a fileserver down.

Yes. Actually, my test cell has some fileservers and one of 3 db-servers
down-by-default. The only impact is a short delay on bootup of the afs-client
until ptdbnssd marked the db-server down.

Did I mention, that the nss-plug is just a very small piece of software,
talking to a local server process (ptdbnssd) which does the real PTDB-stuff?