On 09/06/2009 03:42 AM, Anand Avati wrote:
On 9/6/09, Mark Mielke<mark@xxxxxxxxxxxxxx> wrote:
I used a very simple configuration. The server has a posix volume with
a server volume. The client has single client brick with a
cluster/replicate. I'd show you the volume files, but the server won't shut
down and restart to let me show you them, and I'll have to go in to the
server room to restart it.
If you tell me what commands you would like me to run, I'll try to help out
in diagnosing the problem. I am new to GlusterFS, and this was really my
first test.
is it possible to get a dmesg output somehow? anything on the console?
is this the system running storage/posix (server)? or the fuse mount
(client) or both?
Not any more - I got impatient and did 'kill -9 -1' to see if that would
help it shut down, but it only seems to have killed sshd. I will try it
again tomorrow.
I was using glusterfsd with storage/posix and mount -t glusterfs on the
same machine.
Another odd symptom for me - which I do not recall others having: I had
/export/gluster-test as the storage/posix directory, I had mounted as a
client on /tmp/t, and while cd'ed into /tmp/t, I could change files and
see them without any hang. It only hung when I tried to cd to /export
from a separate window to see what effect my changes in /tmp/t had.
Weird, eh? After this, any SSH in to /home/markm worked, and su to root
worked, but a cd to / or /export hung. Calls to df would show several
lines of output and then hang (presumedly on the /export/gluster-test
line?).
That cd / froze, when GlusterFS was exporting /export/gluster-test as
/tmp/t, makes me doubt that GlusterFS is directly responsible, although
it seems clear that it was GlusterFS that triggered the problem since I
have had no problems with the system before I tried this test.
One possibly "weird" configuration I have is that /tmp is a tmpfs file
system, but even with this configuration, I've never had problems
mounting any other file system as /tmp/t, and this is a common pattern
for me. For example, I often mount /tmp/t as the USB drive to rsync data
to as a alternate backup strategy.
--
Mark Mielke<mark@xxxxxxxxx>
