How to detect if pool member is down?

Hi Roman,

No way to execute the HTTP::retry in the LB_FAILED Event. There are ways around it though.

You can set the HTTP::request in a variable in the HTTP_REQUEST Event and if the LB_FAILED Event occurs you can perform an LB::down, persist none, and LB::reselect to restart the process instead of dying. Setting a retry flag to know if you need to resend the previous request could then be processed in the HTTP_RESPONSE.

Something like this:

 
when HTTP_REQUEST {
log local0. "HTTP Request Event."
set httprequest [HTTP::request]
set retry 0
}
when LB_SELECTED {
log local0. "LB Selected Event [LB::server addr] : [LB::server port]"
}
when LB_FAILED {
log local0. "LB Failed Event [LB::server addr] : [LB::server port]"
LB::down
persist none
LB::reselect
set retry 1
}
when HTTP_RESPONSE {
log local0. "HTTP Response Event."
if { $retry == 1 } {
set retry 0
HTTP::retry $httprequest
}
}

Hope this helps.