On Thu, Jun 03, 2010 at 10:08:05AM +0200, RaSca wrote: > Il giorno Mer 02 Giu 2010 15:10:14 CET, Florian Haas ha scritto: > [...] > >... and then mounted the exported /mnt directory on an Ubuntu lucid box. > >Then, in two parallel sessions, I started jobs that wrote to and read > >from the NFS mount. On the NFS cluster, I sent one node into standby and > >watched failover go completely flawlessly. The jobs continued to read > >from/write to NFS with an interruption on the order of seconds. > >Here are my NFS mount options, in case you're interested: > >192.168.122.110:/mnt on /tmp/nfsmount type nfs > >(rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.122.110,mountvers=3,mountproto=tcp,addr=192.168.122.110) > >So, I'll file this under "works for me". If it doesn't work for you, > >please collect an hb_report. > >Cheers, > >Florian > > Hi Florian, > I followed your suggestions, but the problem is the same. > There is only one difference between our architectures and is that > you're mounting an iscsi share while I'm using drbd. The rest of the > configuration is identical: I've mounted with "noatime" the ext3 > filesystem and from the client the nfs export is mounted with the > same your options. > The point is: is this an exportfs bug? It is a drbd related issue?
No, and no. > Those seems to be the differences between this solution and the one > that you (and also the creator of the exportfs RA) implemented with > success. I think the difference is that your client workload includes locking, and theirs do not. Please try with "nolock" on the client side, and see if that changes something. -- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
