Hello, I have spend the two last day, trying to solve a strange problem. I have 2 hosts connected using Gigabit Ethernet link and a switch between: * host giga: NFS server, Cat6 SFTP link, RTL8111/8168B NIC (r8169), Core 2 Duo T7600, 1GB RAM, SATA drive (xen dom0), linux 2.6.18, etch * host grand: NFS client, Cat6 SFTP link, 3C940 NIC (skge), P4 SMT, 1GB RAM, linux 2.6.21.1, sid * switch 3Com OfficeConnect 8 port Gigabit, all links negotiate 1000BaseT/full
The directory /home/share/backup/old/gildor/ contains a lot of hidden files (former home dir). Here is my test : grand$> umount /home/share && mount /home/share grand$> time ls /home/share/backup/old/gildor/ ... real 0m59.553s user 0m0.000s sys 0m0.000s giga$>ping -i 0.2 grand grand$> umount /home/share && mount /home/share grand$> time ls /home/share/backup/old/gildor/ ... real 0m0.470s user 0m0.000s sys 0m0.000s When a ping is running hitting the host, the NFS returns almost immediatly. It is possible to run the ping on both host, but you need to ping the other end. This has no effect when you ping broadcast, or another non existing host. I try to : * change the switch * use other host as NFS client * follow indication of http://dsd.lbl.gov/TCP-tuning/linux.html and http://datatag.web.cern.ch/datatag/howto/tcp.html * change cable * connect directly one host to another * add hosts to /etc/hosts * disable/enable host caching in nscd Does anyone already solve this problem ? Regards, Sylvain Le Gall -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
