Forum Discussion
CirrusEphemeral node down in pool
Hi all, I have a question about fqdn pool members. I added 2 nodes with FQDN and big-IP has created two ephemeral nodes. I added them to the pool with a specific monitor that make GET /gen/1/admin/node/status\r\n and wait for the string ONLINE. The strange thing is that the ephemeral nodes are marked as down on the pool instead the fqdn nodes are marked as up. What I'm doing wrong?
Thank you for your help
Luca
If the ephemeral nodes are marked down, but the FQDN (template) nodes are marked as up in the pool, this means that the F5 CAN resolve DNS, but the health monitor check is failing.
Please verify that the health check file on the server exists and contains the content string ONLINE and is in the correct folder location
You can test the health check monitor by sending a cURL request from the F5 bash prompt:
curl http:///gen/1/admin/node/status- Anthony_Graber
Employee
Curl may work even if that monitor is failing. It's possible your send string isn't working for that pool member due to HTTP 0.9/1.0/1.1 differences. https://support.f5.com/csp/article/K2167
jaikumar_f5Noctilucent
The nodes usually have gateway_icmp monitor, which could be the reason it's marked up. Whereas the pool would have certain service/content check based monitors, and thus failing.
As pointed out by others,
First check if the port is listening. Then try doing a curl to see the response.
Luca_ComesHi guys, thankyou for your help you were right. The health monitor didn't work so the real node was marked as down. I've modifiee the GET request and all is working now.
Thanks
Luca
