Derrick Brashear wrote:
On Mon, Oct 13, 2008 at 9:52 AM, Randy Kemp <[EMAIL PROTECTED]> wrote:
I had users again today to test with. The problem with fileserver
ceasing to respond and generating the "CallPreamble: Couldn't get CPS.
Too many lockers" error occurred again.
To the app server, or to both machines? I assume, actually, only to
the app server.
The last time it occurred (when I sent the first message) it stopped
responding to all connected clients. I did not think to test that this.
I'm now running fileserver with the following parameters, "-p 128 -b 512
-l 3072 -s 3072 -vc 3072 -cb 65536 -busyat 1536 -rxpck 1024 -nojumbo".
At the time that the problem started there were two physical clients
connected, one was a standalone workstation and the other was the
aforementioned application server with approximately 40 users logged
in. All requests from said application server are now coming from a
single address to a single interface on the AFS server.
It turns out that restarting AFS vs. rebooting the server does not make
the problem go away as I previously thought. It was purely coincidental
that I had also restarted the application server last time. What I have
now discovered is that even rebooting the AFS server does not resolve
the problem (errors start immediately upon startup) and it now appears
that the problem is only resolved by restarting the client on the
application server. The application server is running OpenAFS client
version 1.4.7 on Ubuntu Linux with kernel version 2.6.24.
echo t > /proc/sysrq-trigger on the application server, as root, when
the fileserver won't talk to it, collect the system log from e.g.
/var/log/messages with the backtrace in it, and let us see that.
I have about 90 users that will try to log in to the app server later
today so I'm sure it will do it again. I'll do this and test it from
other clients if/when it happens.
--
Randy Kemp
_______________________________________________
OpenAFS-info mailing list
[email protected]
https://lists.openafs.org/mailman/listinfo/openafs-info
