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LeeG_118759's avatar
LeeG_118759
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May 20, 2013

Take Pool Member offline for service upgrade

Disclaimer: I may not be using correct terminology. ( Pool member environment: Windows Server 2008 R2)   We have a pool named LF_Pool, with two members: 10.16.20.83:9080 and 10.16.20.84:9080 ...
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LeeG_118759's avatar
LeeG_118759
Icon for Nimbostratus rankNimbostratus
May 22, 2013
Well, we had mostly success, but with a two points of wonder. First, I tested my web service using Fiddler (a simple HTTP GET query) without altering the "Action On Service Down" setting (e.g. left it as "None"). When we set one of the nodes in the pool Offline, Fiddler still continued to communicate with that offline node. I don't believe Fiddler is sending any "Keep-Alive" header or any other header to keep persistence... so I'm ignorant as to what is keeping the connection alive.

 

 

Then... when we changed the "Action On Service Down" in the BIG-IP settings window to "Reject"... my tests started working as expected. Steve, do you feel this is the recommended way to achieve taking a pool member down for maintenance? Do you recommend an alternative way? I'm not the Admin of the BIG-IP... just a developer, so I need a little hand-holding. Thanks.

 

-Lee