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Forum Discussion

Sawan_312205's avatar
Sawan_312205
Icon for Nimbostratus rankNimbostratus
Jun 21, 2017

503 service unavailable error

Hi, I have a physical server which sits behind the loadbalancer. When development team generates a load of 100 users on the representing virtual it works fine but later they start getting 503 code ...
application delivery
BIG-IP
LTM
Hectorm's avatar
Hectorm
Icon for Nimbostratus rankNimbostratus
Jun 21, 2017

The 503 is a server side error. I do not believe this is the BIGIP. this 503 is when the website is not available and the server sends a 503. Since this happens when the load is increase I will check the number of threads in the server. I think you are getting max out on the threads available in the server side.