Forum Discussion
Sawan_312205
Nimbostratus
Nimbostratus503 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 ...
dragonflymr
Cirrostratus
CirrostratusHi,
Not much except checking via tcpdump on internal VLAN if 503 is coming from your backend server, if so then you have performance issue at backend server side.
One more thing, if you are using HTTP monitor send string without Connection: close header then it's possible that monitor traffic can create a lot of open TCP connections on the backend server - could be part of the issue.
Piotr
