[OpenAFS] AFS performance problems at cell rl.ac.uk

Harald Barth haba@kth.se
Thu, 31 Jan 2008 13:03:02 +0100 (CET)

> We have recently been experiencing performance problems within our cell
> such that a use can wait several minutes to open or update a file.

$ rxdebug 7000 -version
Trying (port 7000):
AFS version: Base configuration afs3.6 2.51

Do I see this correct? Your AFS version is from 2004? You might want
to upgrade the software (this week's version is 1.4.6) or just move
the whole thing to a modern hardware and software and get it over

> Thu Jan 31 08:53:59 2008 BreakDelayedCallbacks FAILED for host 83eafe37
> which IS UP.  Possible network or routing failure.
> Thu Jan 31 08:53:59 2008 MultiProbe failed to find new address for
> host83eafe37.7001

Newer fileserver versions are more robust agaist such asymetric
routing (firewall and NAT) problems.