On 16 October 2014 10:35, Maik Heinelt <maik at vegasystems.com> wrote:
We recently migrated our Hobbit 4.2 server to Xymon 4.3.18. For some some clients, I noticed a warning "Xymon WARNING: Flapping status". What is flapping status?
A flapping status is set when Xymon detects that a test for one server goes into and out of a normal state too often. Rather than logging hundreds of red/green/red/green events, it correlates them together into a "flapping" state for a while.
The default flap count threshold is 5, and the default flap-seconds threshold is 30 minutes. That means if a test flip/flops more than 5 times in 30 seconds or less, the test will go into a flapping state.
More information about flapping detection and behaviour is in the xymond(8) man page. Here's a link:
http://xymon.sourceforge.net/xymon/help/manpages/man8/xymond.8.html
how to avoid, but not disable it?
You have a few options:
- fix the service or test so that it doesn't go red
- increase values for flap-seconds and flap-count by adding the relevant arguments to the xymond execution (in the [xymond] section of tasks.cfg)
- use the delay-red option for xymond (in tasks.cfg), or set delayred or delayyellow for the host (in hosts.cfg)
More information about the delayred setting in hosts.cfg is in the hosts.cfg(5) man page. Here's a link:
http://xymon.sourceforge.net/xymon/help/manpages/man5/hosts.cfg.5.html
Cheers Jeremy