On 09/15/2016 04:00 PM, Trond Myklebust wrote:
Hi Ben,
On Sep 15, 2016, at 18:32, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote:
I have a Fedora-24 machine mounting an NFS server running Fedora-13 (kernel 2.6.34.9-69.fc13.x86_64).
F24 machine has this in /etc/fstab:
192.168.100.3:/mnt/d2 /mnt/d2 nfs nfsvers=3 0 0
When I copy a file from f24-32 to the F-13 machine, the file size is the same,
but the file is corrupted on the file server. I see a different md5sum each time.
Various other systems (F21, F19, etc) can all copy to the F13 machine fine.
And, F24-64 machine can copy to the F13 machine fine.
Anyone seen something similar?
Do you know if the corruption is happening on the read()s or on the write()s? Do you, for instance get the same corruption if you copy from a local file on the F-24 client to the server? ..or if you copy from a file on the server to a local directory on the F-24 client?
Cheers
Trond
Seems to be a write issue:
# This is the nfs server:
[greearb@fs3 candela_cdrom.5.3.5]$ md5sum gua-f21-32
ad4073fa8b806bb82b85a645e21f5e67 gua-f21-32
[greearb@fs3 candela_cdrom.5.3.5]$ md5sum ../greearb/tmp/gua-f21-32
582bfea0cc8cc52aa38dc0f5048d0156 ../greearb/tmp/gua-f21-32
[greearb@fs3 candela_cdrom.5.3.5]$
# This is the v-f24-32 client:
greearb@v-f24-32 ~]$ cp /mnt/d2/pub/candela_cdrom.5.3.5/gua-f21-32 ./
[greearb@v-f24-32 ~]$ md5sum gua-f21-32
ad4073fa8b806bb82b85a645e21f5e67 gua-f21-32
[greearb@v-f24-32 ~]$ cp gua-f21-32 /mnt/d2/pub/greearb/tmp/
[greearb@v-f24-32 ~]$ md5sum /mnt/d2/pub/greearb/tmp/gua-f21-32
ad4073fa8b806bb82b85a645e21f5e67 /mnt/d2/pub/greearb/tmp/gua-f21-32
Interesting that the client reads back the file it copied over as if it were correct, but
it shows up wrong on the nfs server. Maybe it is just reading a local cache?
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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