Detect if node is half-dead with an iRule?

I set the monitor_id with "after" inside LB_SELECTED, then cancel it in both http_request and http_response.i do not think we should cancel monitor_id in HTTP_REQUEST event since the monitor_id will start scheduling in LB_SELECTED event.

 

 

the situation Aaron and I am discussing is when bigip has established 3-ways handshake to pool member and that is it (the pool member does not respond to GET request). what we want to do is to re-select another pool or pool member, establish a new 3-ways handshake and send GET request over. however, it appears bigip does not pick up a new pool or pool member.