[OpenAFS] Re: Disk cache not updating

[Derrick J Brashear]

On Fri, 14 Jan 2005, Charles W Ball wrote:

> We had a similar symptom occur for our apache docroot this week. This
> occured as file servers providing web content were upgraded from 1.2.9 to
> 1.2.13. In this case, I'm prepared to attribute the problem to loss of
> callbacks across the fileserver restart/upgrade, but it is quite unusual
> for clients to lose state in this way.
>
> Client (webservers) which showed evidence of the problem were:
>
> AFS version:  OpenAFS 1.2.9 built  2003-05-12	(os: solaris 7 & 8)
> AFS version: Base configuration afs3.6 2.36	(solaris 8, test system)

Then this almost certainly isn't the problem we're looking at now.

> Is there a procedure that can be followed either before or after a
> fileserver restart to detect any existing, defunct callbacks and refresh
> them before volumes are modified and released?

Well, when you shut down the fileserver it's supposed to break all the 
callbacks it has outstanding. There's no way to collect the information in 
a new fileserver because you don't know what your clients are.