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Forum Discussion

nevot_66724's avatar
nevot_66724
Icon for Nimbostratus rankNimbostratus
Jul 12, 2008

iControl graceful stop node

Hello,   I'm searching for a perl script just to make a 'graceful' stop of one of my webservers.   My objective is to add some code to /etc/init.d/httpd for:   a) do not accept more con...
dev
devops
iControl
Joe_Pruitt's avatar
Joe_Pruitt
Jul 14, 2008
The way to gracefully stop a pool member is to first stop all new connections to it by disabling new sessions with the LocalLB.PoolMember.set_session_enabled_state() method.

 

 

http://devcentral.f5.com/wiki/default.aspx/iControl/LocalLB__PoolMember__set_session_enabled_state.html

 

Click here

 

 

 

You will then have to poll the statisitcs for the Pool Member with the LocalLB.PoolMember.get_statistics() method and look at the STATISTIC_SERVER_SIDE_CURRENT_CONNECTIONS statistic.

 

 

http://devcentral.f5.com/wiki/default.aspx/iControl/LocalLB__PoolMember__get_statistics.html

 

Click here

 

 

 

You'll need to continue polling until the current connections drops to zero. At that point you can mark the pool member down with the LocalLB.PoolMember.set_monitor_state() method.

 

 

http://devcentral.f5.com/wiki/default.aspx/iControl/LocalLB__PoolMember__set_monitor_state.html

 

Click here

 

 

 

Hope this helps...

 

 

-Joe