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Forum Discussion

Dixit_18200's avatar
Dixit_18200
Icon for Nimbostratus rankNimbostratus
Apr 26, 2009

How to enable logs for Keep Alive

Hi Guys,     We are facing some problem with our nodes in pool. We have enabled health monitoras keep alive for html file. That means when ever the load balancer cannot fetch the html fil...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 27, 2009
As Denny says, it would be ideal to set the monitor up correctly. It can help to enable debug on the monitoring daemon, bigd, to do see the request and response send/received for the monitoring. You can enable debug from the command line using 'b db bigd.debug enable' and disable it using 'b db bigd.debug disable' . It does create very large output files (/var/log/bigd.debug). You could also use tcpdump and filter on the non-floating self IP address and the server IP address:port:

 

 

tcpdump -ni SERVER_VLAN -s0 -w/var/tmp/`/bin/hostname`.monitor.dmp host LTM_STATIC_IP and host SERVER_IP and port SERVER_PORT

 

 

Aaron