Forum Discussion

some1youknow_86's avatar
some1youknow_86
Icon for Nimbostratus rankNimbostratus
Oct 30, 2007

newbie: stop session to specific node

Hello,

 

 

Is it possible to stop session to a node (one of load balanced node in a pool) on specific time frame using iRule?

 

 

I need to reboot app server regularly and would like to stop session on specific time frame while servers are rebooted one at a time. I need to disable session prior to rebooting each server so that users can at lease save work while connected to specific node.

 

 

Thank you

 

 

Steve
application delivery
dev
devops
iRules
v4
  • AndrewO_4840's avatar
    AndrewO_4840
    Icon for Nimbostratus rankNimbostratus
    May 13, 2008
    Using an iRule? no

     

     

    But you can via iControl, or even SSH.

     

     

    Presumably you have some kind of cron task calling a script that initiates the reboot. You could edit that script to issue a 'node down' (or disable) for the node prior to restarting the app, followed by a 'node up' (or enable).

     

     

    If getting your head around iControl's SOAP interface is too much, consider setting up a private key-based account, then you can manage it via ssh:

     

     

    ssh user@bigip bigpipe node 1.1.1.1:80 down

     

     

    Since you have a private key setup, this will automatically log into the Big/IP and issue the bigpipe command. It's also a lot faster than SOAP for one-off commands.