Forum Discussion
Sarah_258804
Cirrus
CirrusInterval and Timeout set to two seconds on HTTP/HTTPS health monitor
Hi all, I currently have a need from upper management to shorten the length of time a user will need to wait if they're connected to our site and tomcat goes down on one of our backend servers that t...
Hi Sarah,
The recommended setting for health monitors is to use the scheme of n3+1, meaning, if you pick an interval of 2 seconds, then your timeout should be 7 seconds. The default that ships with the system is 53+1=16.
This article may help. In the "Verifying Monitoring Settings" section, it discusses the recommended timings.
https://support.f5.com/kb/en-us/solutions/public/12000/500/sol12531.html
Interval/timeout ratio
Configuring an appropriate interval/timeout ratio is important for simple monitors. In most cases, the interval/timeout should have a timeout value of three times the interval, plus one. For example, the default ratio is 5/16. Verify that the ratio is properly defined.