Irule winner Chetan Bhatt's entry

You can check out the complete irules here

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/Pool__Member__Status__Page_on_a__Virtual__Server_v10.html

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/Pool_Member_Status_Page_on_a_Virtual_Server.html

 

 

There already has been some contribution to the original code.

 

 

Bhattman

 

Couldn't resist. :>

Nope

Seems like the 9.4.7 version doesn't include handling for HA clusters like the v10 does - any chance that can be added, so the b load statement only happens on the Active node?

You could replace

 

 

 

!/bin/bash

 

b pool all |grep "POOL MEMBER" | awk '{sub(":any",":0",$4);print "\""$4"\","}' | sort >/var/class/pool_member_status_list.class

 

b load

 

exit 0

 

 

 

 

 

with

 

 

 

!/bin/bash

 

b pool all |grep "POOL MEMBER" | awk '{sub(":any",":0",$4);print "\""$4"\","}' | sort >/var/class/pool_member_status_list.class

 

 

if [ "`/bin/ps1`" == "Active" ]; then

 

b load

 

fi

 

 

exit 0

 

 

 

 

 

I hope this helps

 

 

Bhattman

Is there another command we can use besides "b load" to update the datagroup when the external file changes? I think we ran into a memory issue and lost our config after running the "b load" command.

Yep:

 

 

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&tpage=1&view=topic&postid=11704231170423

 

 

you do not have to do a full b load

 

 

You can get away with toggling one of the attributes on the class. Here's a CodeShare entry that does the trick

 

 

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

 

Click here

 

 

I hope this helps

 

 

Bhattman

 

 

 

 

Aaron

Thanks for the quick response. It's going to take me a while to understand how to use the CodeShare entry. In the mean time, can I remove the b load command from the pool member status cron job if I run it after a daily config sync cron job using

 

 

bigpipe fo | grep -q "FAILOVER standby" && nice b config sync pull

If you want to programmatically force a re-read of the external datagroup file, you could create the PingExternalClass Perl script on LTM and then call it from the script you're running from cron.

 

 

Aaron

I appreciate the Perl script, Hoolio. I didn't realize it would be so easy to implement. It works great.