Date: Fri, 6 Apr 2001 09:22:43 +0200 From: Cejka Rudolf <cejkar@dcse.fee.vutbr.cz> To: freebsd-stable@freebsd.org Subject: About NFS and NFSv3/UDP errors with iozone Message-ID: <20010406092243.A47655@dcse.fee.vutbr.cz>
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Hi,
I'm trying to test NFS stability in 4.2-STABLE and I have
some problems with NFSv3/UDP (however, I'm very happy that
FreeBSD 4.2 NFS server running NFSv3 no longer reboots):
Server is FreeBSD 4.2-STABLE, client is Solaris 7 on E450.
I'm using following script with "iozone -a" ($Revision: 3.24 $):
--
VER=3 # 2 or 3
PRO=udp # tcp or udp
mount -o nosuid,rw,vers=${VER},proto=${PRO},intr,soft freebsd:/export /mnt
( cd /mnt ; iozone -a ) > iozone.${VER}.${PRO}.output
umount /mnt
--
Combinations 2/TCP, 2/UDP and 3/TCP run fine, but 3/UDP repeatedly
reports "RPC: Timed out" (always in last section, where column
KB is 524288), for example:
# ./run.sh
NFS setattr failed for server kunhuta: error 5 (RPC: Timed out)
fdopen: Connection timed out
Please, is it reproducible on the other sites?
Or is it a natural behavior because of UDP protocol use?
--
Rudolf Cejka (cejkar@dcse.fee.vutbr.cz; http://www.fee.vutbr.cz/~cejkar)
Brno University of Technology, Faculty of El. Engineering and Comp. Science
Bozetechova 2, 612 66 Brno, Czech Republic
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