On 3/25/2010 at 10:03 PM, Dejan Muhamedagic <[email protected]> wrote: > > Now for a little potential nastiness... I did some work in this area > > a year or two ago, and at the time, we ran into some curious edge cases. > > Hopefully things have moved on a little since then in NFS-land (I was > > using SLES 10 SP2, from memory), but for reference, have a look at: > > > > http://marc.info/?l=linux-nfs&m=123175640421702&w=2 > > > > This describes an edge case where (depending on what the clients are > > doing), it's possible that running "exportfs -i" to export one directory > > will result in an interruption of service to an unrelated exported > > directory on the same node. > > This sounds unexpected.
Yes, very unexpected. > BTW, I guess that this is a Linux specific exportfs, right? Yes. I *know* this problem existed in the kernel Linux NFS server and/or matching userspace tools a year ago. It may or may not still be a problem (the fix required reasonably obscure surgery, the magic of which I am not able to explain, as I'm not sufficiently familiar with the guts of the NFS server). I can't speak for userspace NFS servers (there's at least one of these for Linux, which I've never tried) and NFS servers on other OSes. They might work perfectly, or they might have different problems :-/ Regards, Tim -- Tim Serong <[email protected]> Senior Clustering Engineer, OPS Engineering, Novell Inc. _______________________________________________________ Linux-HA-Dev: [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev Home Page: http://linux-ha.org/
