Hello managers,
I have been experiencing network problems on one of our subnets.
From time to time our server which is supporting about 8 clients
freezes and the only way to restart the production is to reboot the server.
In last couple of days frequency of the problem has increased quite
dramatically (3 within last week...) I have chased all error logs
and the only indication of some problems can be found in
/var/adm/syslog.dated on the server and the clients. Restarting moutd and
nfsd deamons does not help, the only recovery possible is by rebooting
the server.
Can any of you provide some hints regarding this type of problem?
(See samples of kern.logs below, the same messages have been produced
over a period of cca 3 hours before the incident) We run DU3.2a and
use UFS, NFS and automounter mounts only.
on the server:
Apr 25 14:31:08 mecmda vmunix: getattr, client address = 155.198.71.24, errno 22
Apr 25 14:31:08 mecmda vmunix: NFS server: stale file handle fs(8,32770) file 124945 gen 830445765
Apr 25 14:31:08 mecmda vmunix: getattr, client address = 155.198.71.24, errno 22
Apr 25 14:31:11 mecmda vmunix: NFS server: stale file handle fs(8,32770) file 124945 gen 830445765
Apr 25 14:31:11 mecmda vmunix: getattr, client address = 155.198.71.24, errno 22
Apr 25 14:31:11 mecmda vmunix: NFS server: stale file handle fs(8,32770) file 124945 gen 830445765
Apr 25 14:31:11 mecmda vmunix: getattr, client address = 155.198.71.24, errno 22
on the clients:
Apr 25 13:31:57 mecdq vmunix: NFS3 write error 69 on host mecmda
Apr 25 13:31:57 mecdq vmunix: UBC write error(69) on device (0, 0) at block 128 size 8192
Apr 25 13:31:57 mecdq vmunix: NFS3 write error 69 on host mecmda
Apr 25 13:31:57 mecdq vmunix: UBC write error(69) on device (0, 0) at block 144 size 8192
Apr 25 13:31:57 mecdq vmunix: NFS3 write error 69 on host mecmda
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Jiri V. Studnicka
Centre for Computing Services, phone 0171-594 6942
Imperial College of Science Technology & Medicine, fax 0171-594 6958
London SW7 2BX, England email j.studnicka_at_ic.ac.uk
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Received on Thu Apr 25 1996 - 20:23:38 NZST