Hi,
my NFS server not to be able to handle all its mount requests.
Problem report:
1. Clients loose connection from time to time and show nfs-stale
2. Server foo has only an uptime of about 2 Days then system crash (mostly
under heavy nfs-load)
3. 250 Clients accessing a 500G Partitition
Are there any limitations for the nfs-kernel server?
How to improve stability?
Input:
Debian Woody
Kernel 2.4.19
package nfs-kernel-server-1.0-2
######### logfiles output:
Aug 28 14:10:54 foo rpc.statd[213]: Received erroneous SM_UNMON
request from foo for 10.10.10.57
Aug 28 14:10:54 foo rpc.statd[213]: Received erroneous SM_UNMON
request from foo for 10.10.10.105
Aug 28 14:10:54 foo rpc.statd[213]: Received erroneous SM_UNMON
request from foo for 10.10.10..87
Aug 28 14:10:54 foo rpc.statd[213]: Received erroneous SM_UNMON
request from foo for 10.10.10.119
#############
Aug 28 09:55:44 foo rpc.mountd: authenticated mount request from
lxg0220.bar.de:693 for /BARroot (/BARroot)
Aug 28 09:59:49 foo rpc.mountd: authenticated mount request from
lxg0220.bar.de:790 for /BARroot/Log (/BARroot/Log)
#############
Aug 27 08:38:05 client kernel: nfs: server foo not responding, still
trying
Aug 27 08:40:12 client kernel: nfs: task 18177 can't get a request slot
Aug 27 08:59:33 client kernel: nfs: task 18178 can't get a request slot
Aug 27 09:03:01 client kernel: nfs: task 18179 can't get a request slot
Aug 27 09:32:01 client kernel: nfs: task 18180 can't get a request slot
Aug 27 10:03:01 client kernel: nfs: task 18181 can't get a request slot
Aug 27 10:32:01 client kernel: nfs: task 18182 can't get a request slot
Aug 27 11:03:01 client kernel: nfs: task 18183 can't get a request slot
Aug 27 11:15:43 client kernel: nfs: server foo OK
Aug 27 11:15:43 client last message repeated 7 times
Aug 27 17:30:11 client kernel: nfs: server foo not responding, still
trying
Aug 27 17:30:32 client kernel: nfs: server foo OK
Aug 28 09:16:29 client kernel: nfs: server foo not responding, still
trying
Aug 28 09:16:34 client kernel: nfs: server foo OK
######## end
--
Oliver Korff, credativ GmbH
Karl-Heinz-Beckurts-Str. 13
52428 J?lich, Germany
Tel.: +49 (2461) 69071-0
Fax: +49 (2461) 69071-1
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