I believe you are running into a flapping issue.<div> </div><div>Read this: <a href="http://nagios.sourceforge.net/docs/2_0/flapping.html">http://nagios.sourceforge.net/docs/2_0/flapping.html</a></div><div> </div><div> <a href="http://nagios.sourceforge.net/docs/2_0/flapping.html"></a> Regards, Justin Dorfman Mahalo.com Inc. > Jr. Systems Engineer 818.485.1458 <a href="http://www.twitter.com/jdorfman" target="_blank">@jdorfman</a> | <a href="http://twitter.com/MahaloSysops" target="_blank">@MahaloSysops</a> | Blog: <a href="http://bit.ly/aNiWSk" target="_blank">http://bit.ly/aNiWSk</a> <div class="gmail_quote">On Tue, Sep 7, 2010 at 5:39 PM, Mike Chesnut <<a href="mailto:mikec@aggregateknowledge.com">mikec@aggregateknowledge.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> I'm wondering if this is a known bug, and/or if anybody else has seen similar behavior... We're using Nagios 3.2.1 on Linux, monitoring several Linux systems. We run the check_load probe against every system. Occasionally (at non-regular intervals), Nagios will freak out and alert on the load average of many (sometimes *all*) systems. When this occurs, it reports the *same* load averages for each system, and the weirdest part is that these load averages are completely bogus. Then, over the course of the next 20 or so minutes, the load averages being reported gradually decrease (they go from CRITICAL to WARNING to OK), always staying in sync across *every* system. Again, when this happens, the load averages being reported are completely unrelated to the actual load averages on any of the systems that are actually being checked. Any ideas for what I can do to get to the bottom of why this happens? Thanks, Mike ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. <a href="http://p.sf.net/sfu/intel-thread-sfd" target="_blank">http://p.sf.net/sfu/intel-thread-sfd</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div> </div>