Hi Jonathan. I think you're right. The only thing I can think of is the Oracle RAC Cluster that might send this resetting for save the integrity of the DB....in a few words is a fencing.
Thanks Alfredo On Sat, May 28, 2011 at 06:08, Jonathan Billings <[email protected]> wrote: > On Fri, May 27, 2011 at 11:20:36AM +1000, Alfredo De Luca wrote: > > Hi all. > > > > We have Red Hat Enterprise Linux Server release 5.5 running on Sun Blade > > x6270 and occasionally the server hang with just error message in the > logs: > > > > May 23 14:37:41 xxxxxxxxxxxx kernel: SysRq : Resetting > > Looks like someone hit the Magic Sysrq key for doing a reset: > http://en.wikipedia.org/wiki/Magic_SysRq_key#Magic_commands > (look at 'b' in the qwerty column) > > This is something done either from a keyboard, from a serial console > (if that's set up) or someone running 'echo b > /proc/sysrq-trigger'. > > I think some load-balancing software uses the /proc/sysrq-trigger > method to kill wedged server, so it might be an indicator something > else is resetting the system. > > > -- > Jonathan Billings <[email protected]> > College of Engineering - CAEN - Unix and Linux Support > > -- > redhat-sysadmin-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/redhat-sysadmin-list > -- *Alfredo*
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