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I have NFS share mounted on CLIENT in /etc/fstab:

SERVER:/share on /mnt/share type nfs (rw,users,noexec,nosuid,nodev,timeo=14,hard,intr,addr=1.2.3.4)

Intensive use on client like copying a lot of data from it crashes the host after a few minutes.

/etc/exports on SERVER:

/nfsshare  1.2.3.4(rw,no_subtree_check,no_root_squash)

Sometimes (not always) I get on CLIENT:

messages:Nov 18 16:28:09 CLIENT kernel: nfs: server SERVER not responding, still trying

Client data:

Linux CLIENT 2.6.32-279.22.1.el6.x86_64 #1 SMP Sun Jan 13 09:21:40 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
% cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.3 (Santiago)

Server often (though not always) displays smth like:

Nov 18 16:04:07 SERVER kernel: rpc-srv/tcp: nfsd: sent only 943052 when sending 1048708 bytes - shutting down socket

What is the reason of crashing? And how I can fix that?

LetMeSOThat4U
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  • This can occur with a heavily loaded NFS server - TCP is more resource heavy than UDP - hence you might start by using UDP if server and client don't have dynamic address translation in between. – symcbean Nov 18 '14 at 16:41

0 Answers0