-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 24.09.2015 um 11:46 schrieb Vincent Lefevre: > On 2015-09-23 17:56:30 +0200, Peter Ludikovsky wrote: >> When mounted as NFS3 over UDP: - ---- root@lab1# echo foo > >> file1 root@lab1# cp file1 file2 >> >> root@lab2# cat file2 foo >> >> root@lab1# time mv file1 file2 real 0m0.004s user 0m0.000s sys >> 0m0.000s - ---- >> >> Same with NFS4 over TCP: root@lab1# time mv file1 file2 real >> 0m0.005s user 0m0.000s sys 0m0.000s >> >> Any special mount options or export options you might be using? > > Here this is NFS4 over TCP: > > filer.lip.ens-lyon.fr:/export/home/vlefevre on /home/vlefevre type > nfs4 > (rw,nosuid,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=140.77.14.11,local_lock=none,addr=140.77.14.5) > > > > Is there any other information I could get? >
The most obvious thing: remove the public visible IPs and DNS names. Other than that, what mount command did you use? Are you mounting the share yourself, or is this an fstab or autofs mount? Do you have any control over the NFS server, and if so what are its settings? I did manage to replicate your issue. However, it disappears as soon as I sync before the mv, as well as when both the rsize and wsize parameters are reduced to 65536, suggesting this has something to do with a local cache and/or lock. Apparently the issue also disappears as soon as both sides have noac added to the mount options. Regards, /peter -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJWA+6pAAoJEM+6Ng5pbtyZvjEQALFrhCJHmF/JYmAvXncmbBdz PYvSHTbAN9vNzCc4vqzkf4CmhgIVNSrP0WsPE/AHo2BNgpQQIQzfiiTgLGRBJnqT jDctQE/bJYMhk1aw08b/c2l6a7Ykc9R1rXu516ftrBKe9f5fcxFLndjIrtgGP01K 3Tah6v8epDd2t3MDzhABZdn4QB5oWesgcnISJOBsrds8+vfYOKjEYiCNGm7wlduV 8968HXrCWJxNrkyhMmHTpPopFxzk1LZD270zxkUiidA4kDxjcADSCJhP6+Bivv1H h+QhzNZ8NUEYBam+PuL3LhlBFalgvEZGfRF8gULEbjX7umA4b2tLWhgQAraYmiDO arfCrUPkcqv4oB9mldrL1PfhKLzMtz4bQfg3/8u7gBBWnpkFq7JhE9CMQ7oddBBQ rosT9sXsCRneYXfINJ57czof2kca3+5p/nZB7wgANKwD0nFWhFObduZJRnxqNXes jdKNRrGg4oy0HJAMWXUvr/0Oy5iqoWwtGNhx4FHr2W4Lgie8g+YOciLsInsdytCu x5x2EHcIOpVUBkya+xHxD02kk2loWKNh/sIV0RdgKabJ9YhY7srxh6uiPm/SNnvJ 67mpH7ekg5FOFc6njndeq1nXBzp/CX29GM8AnC5no5/Zmqf1qLiXxlTJFvYzZpNS g4oRynIeq5Zd7sD2JoaW =FojV -----END PGP SIGNATURE-----
