[Beowulf] using watchdog timers to reboot a hung systemautomagically: Good idea or bad?

Greg Lindahl lindahl at pbm.com
Fri Oct 23 14:23:17 EDT 2009


On Fri, Oct 23, 2009 at 01:01:05PM -0500, Rahul Nabar wrote:

> 2. Some errors are hardware precipitated. Aging, out-of-warranty
> aging, hardware can sometimes need such a reboot compromise for
> one-off random errors.
> 
> Maybe all the "nice" clusters out there never have this issue but for
> me it is fairly common. Just confessing.

Why, exactly, are you assuming that your freezes are one-off random
errors due to aging hardware? Sounds like you're either guessing, or
you _are_ doing forensics, but aren't calling it forensics.

-- greg




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