Jason_Hook_4092
Dec 16, 2009Nimbostratus
HTTP Keep-alive holding connection to disabled server
We have x number of servers in a pool and they are configured with HTTP keep-alives enabled. When one of the servers needs maintenance or is getting sick, we go into the pool member list and select the server and choose Force Offline to sever idle connections. After this we need to wait for an indefinite amount of time before the active connections drop...in some cases this could be all day until evening when volume decreases dramatically...but at times we need to take the sick server out "now."
We could issue an iisreset on the server to clear the connections, but we risk an in-progress request to be dropped on the floor which we want to completely avoid.
My question is...how can we creatively redirect connections going to the sick member of a pool to another member of the same pool when we disable the member without killing any requests in the process?
Big-IP 6900 w/ LTM v10.0.1
Windows Server 2003 w/ IIS6
Any suggestions would be appreciated.
Jason