John Plocher writes: > James Carlson wrote: > > Links flapping in the breeze cause log files to fill and overflow with > > garbage, causing users to be unable to find any relevant messages, and > > sometimes causing file systems to fill up. > > > As Kais said, links flapping in the wind sounds like a bug in that > an upstream packer generator isn't being informed of a link-down > event. Fix the bug. In addition, this proposal addresses the "fills > log" symptom as well.
No. That's a misunderstanding. I fully agree that persistent "link still down" messages are application bugs that need to be fixed. I'm talking about the case where a misconfigured link goes up and down rapidly over time, even with no traffic at all present. > If links are flapping in the wind because of some external > misconfiguration, why wouldn't you want to tell someone? Yes. Just not at the rate of dozens or hundreds of messages per second. > > Different drivers issue completely different messages in different > > contexts, and these cause customers to get annoyed or confused. > > So, improve those drivers as well. That's exactly what's going on here. We need commonality in order to improve at all. Trying to fix those drivers piecemeal to do something better is *exactly* the strategy that got us into the mess we're in. > This is an opportunity to > improve the debugging of our systems at little to no cost - it > should be a no brainer. And it should not preclude improving > other parts of the system as well - having tools other than > syslog is a Good Thing - they are not exclusive choices! Nor did I suggest otherwise. -- James Carlson, Solaris Networking <james.d.carlson at sun.com> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677
