HELP! using LB_fail

So i'm trying to get html to display when active members of the pool are not available. I have tried 4 or 5 different rules and i get the same result which is just the standard IE message.

Here is my latest....

set my_pool [LB::server pool]
when LB_FAILED {
log local0. "[active_members $my_pool]"
if { [active_members $my_pool] < 1 } {
HTTP::respond 200 content {


Please help, i'm kind of a noob to irules.

8 Answer(s):

Hi Brandon,

That looks about right. Do you see the LB_FAILED log message?

Can you make a request to the virtual server using curl and check the response as well as the /var/log/ltm output? You can use curl like this to make the request:

curl -v
curl -kv

I do not see anything in the logs. I was wondering about using the DNS_REQUEST event for the IF statement. for some reason i don't get the desired results with multiple tries on different irules i configured to do the same thing.
i would start some basic debugging, output something in client_accepted event to check if that part is reached.

then output the selected pool to see if that makes sense.

start simple and then expand.
what do you mean by "standard IE message." are you seeing connection reset error?
I came to that conclusion yesterday and will be testing the irule with some extra log inputs on thursday. Thanks for the push!

"your page cannot be displayed"
our web addy is https, i dont know if that is causing a problem or if there is something not enabled. i added additional log inputs and i do not see them in the logs at all. What could be the issue
I also realized under the statistics page for irules that nothing has been counted even the default irules have nothing.
Thanks for the help, i resolve my problem, but now i have another one. I will create a new string with it.

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