On Tuesday, January 31, 2012 08:52:01 AM Mark Wendt did opine: > On 01/31/2012 06:09 AM, gene heskett wrote: > >>> Bear in mind Mark, that I now have it setup so each is both a client > >>> and a server, so that I can copy stuff in both directions. No clue > >>> if that is a no-no, but it works, until I reboot either one. > >>> Perhaps some other option needs to be enabled in /etc/exports? > >>> Like Sgt. Schultz, I no nothing. :) > >>> > >>> Cheers, Gene > >> > >> Do you really need to do that? That does make rebooting a bit > >> trickier. How are you mounting the NFS partitions? By that I mean, > >> what options are you using? Have you tried using the "soft" mounting > >> option, along with "retrans=n"? The default is "hard" and it keeps > >> banging away with NFS requests indefinitely. "soft", in conjunction > >> with the "retrans" option stops that behavior after "n" attempts. > >> > >> Mark > > > > That sounds as if the rest of the machine should remain usable. In > > these cases everything stops and the only response available is > > hitting the hardware reset button. It doesn't happen very often. > > Both machines had uptimes in excess of two weeks till then. > > > > Cheers, Gene > > NFS can use up all the CPU cycles trying to get a remount. I've seen > that quite a few times, especially at boot time, when a system is trying > to do an NFS mount on another system that's down at the time, and it > just sits there forever until the other machine comes back up. The soft > and retrans option allows the boot to continue after so many attempts, > and then you can fix the problem once it's fully booted. > > Mark > But, this is _after_ the other machine had been rebooted for 15-20 minutes when this one locked up, hence my tendency to think it wasn't related to any traffic thru NFS at the time. I had just logged back in over ssh, done a cd to a subdir and an ls. The next operation and I forget now what it was, was over that ssh link, might have been an ls -l, completed ok, but then the keyboard and mouse were gone, I looked over at the gkrellm strip, it was frozen, I then reached and found the reset button. Had it been synchronous to the shop machines reboot, that would have been another critter entirely to this, IMO.
Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> Beware of bugs in the above code; I have only proved it correct, not tried it. -- Donald Knuth ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
