Forum Discussion

Gajji's avatar
Gajji
Icon for Cirrostratus rankCirrostratus
Jun 19, 2021

Custom HTTP monitor query

If configured custom HTTP monitor with send string check on the server   would that HTTP request will go from both the Active-Standby loadbalancer to the server? any if both loadbalancer send req...
application delivery
BIG-IP
Gajji's avatar
Gajji
Icon for Cirrostratus rankCirrostratus

Thanks, Daniel for the Reply...

 

Actually issue was wait time more for the request from LB to backend...it's not getting closed immediately...

 

The application team said its a dynamic URL... so I just change the path from /monitor/monitor

too simple "/" as per their suggestion and wait time was reduced

Daniel_Wolf's avatar
Daniel_Wolf
Icon for MVP rankMVP
Jun 20, 2021

It depends on the value you are getting from this content check monitor. If it helps you to reliably determine the server state, you should discuss with the application team why the response takes so long. In the end it should be their interest as well that the BIG-IP can quickly check the state of the server and does not impose additional load on the server by querying dymanic URLs.

 

You could tune your health monitor too.

With "time curl http://backend/status.php?appID=02" you can measure the time the server needs to respond and adjust your monitor.

Or you check whether an adaptive monitor or an EAV external monitor might be of use for your case.