For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

apara_5691's avatar
apara_5691
Icon for Nimbostratus rankNimbostratus
Jul 07, 2010

Check monitor status from an iRule

Hi everyone!     I have a question. I have a VS that selecets the correct pool using an iRule, I want to check the status of that pool before it's selected (I mean, before 'pool $selected_pool' ...
application delivery
dev
devops
iRules
Chris_Miller's avatar
Chris_Miller
Icon for Altostratus rankAltostratus
Jul 07, 2010
Posted By hoolio on 07/07/2010 05:16 AM

 

Hi Alberto,

 

 

You can check the status of a pool using LB::status:

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/lb__status

 

 

However there isn't a way to change the monitor assigned to a pool from an iRule. If a pool member was already marked down, you could use HTTP::retry to send a new HTTP request. You might be able to specify the IP and port to send that request to using the node command. I'm not sure whether this would work if the node address had also been marked down though.

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/http__retry

 

http://devcentral.f5.com/wiki/default.aspx/iRules/node

 

 

Aaron

 

 

Hoolio - what's your take on using LB::status vs if {active_members pool x > 0}?