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Glenn_Wellingto's avatar
Glenn_Wellingto
Icon for Nimbostratus rankNimbostratus
Aug 09, 2012

LTM 1600 - 10.2 - Drop all connections to member

Hey guys,

 

 

Is there a way to sever all connections to a specific pool member within the LTM? We currently force offline nodes when we want to take them out, but it takes several minutes for the connections to drain off and even then, existing connections continue to persist. Due to our workflow, this behavior puts a damper on deploying for our clients and causes people to reconnect to servers that are undergoing maintenance.

 

 

 

Our pool setups currently have:

 

1) Src-IP persistence

 

2) Reselect on service down

 

3) Disable by force offline

 

 

 

Any help would be greatly appreciated.

 

 

 

Thanks

 

basic
getting started
new to f5

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  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Aug 10, 2012
    i understand forced offline would leave only active connection.

     

     

    sol7566: Disabling nodes or pool members for maintenance (9.x - 10.x)

     

    http://support.f5.com/kb/en-us/solutions/public/7000/500/sol7566.html

     

     

    to drop active connection, is manual deleting connection through tmsh acceptable?
  • Nate_7016's avatar
    Nate_7016
    Historic F5 Account
    Aug 29, 2012
    The easiest way (in my mind...) is to force a monitor failure on the node. As soon as the node is marked offline/down it will kill all connections and not send anymore to it.

     

     

    One way to do this is set the node to a node specific monitor and put an http monitor on it if it's only ftp or the reverse of that. Then it causes a failure, kills everything and you're offline.

     

     

    The other option (for http) is to put a http disable string into your http monitor. Then, when you want it offline for maint. simply send the disable string to the LTM from the server and it will mark it down.