We address this kind of thing using an external daemon which receives and parses syslog messages from haproxy.
On Fri, May 5, 2017 at 1:10 AM, Stephan Mueller <[email protected]> wrote: > Hi, > > is it possible to define some custom action on a server state > change, e.g. execution of a script? > > Background: Recently, I had some issues with a flapping service - it > worked well without load ;p - but rapidly degraded in UP state. In > result it was flapping UP/DOWN. rise/fall could only scale my problem > in time and also agent-checks could not help as is the service > considered itself functional all the time (other story). > > As a first countermeasure it would be nice, to have some kind of > flapping detection direct in haproxy itself. For example it would be > helpful to have a separate log for server UP/DOWN messages. Then its > much easier to see frequent state changes. > > Thanks for your thoughts > > -- James Brown Engineer

