Forum Discussion

Tim_Sil_178134's avatar
Tim_Sil_178134
Icon for Nimbostratus rankNimbostratus
Dec 10, 2014

Is there a way to see which part of the monitor failed?

This morning we had our website suffer a temporary outage. We have three nodes for the pool and all three were marked down several times over the course of a two minute period, bringing the whole po...
application delivery
availability
devops
iRules
LTM
management
gsharri's avatar
gsharri
Icon for Altostratus rankAltostratus
Dec 10, 2014

By default LTM logs nothing related to a monitors request/response. Beginning with v11.4.0 or maybe v11.5.0 you can enable monitor logging in the properties of a pool member. Monitor activity is then logged to /var/log/monitors/.

 

Also try using telnet or curl from the LTM cli and make the same request the monitor is making to the pool member so you can see exactly what the response contains.

 

Tcpdump can also be used to capture and examine monitor traffic.