Hi,
It appears that mod_proxy considers a backend as failed only when
the transport layer connection to that backend fails. Is this expected?
The backends are VMs and only when I SIGSTOP the VMs, the backend is
considered in an error state and the retry= parameter has an affect.
If I've set ping=10, the client has to wait for a full minute before a
503 occurs. On subsequent requests, the requests keep coming to this
failed server as if it's healthy effectively making the ping= parameter
pointless (it does nothing).
If a timeout occurs (as set in ProxyTimeout), then too the backend is
not considered as failed and subsequent requests keep coming to it.
When I've set status=E, requests still come to the origin and get served.
failonstatus= has no effect regardless of the value. Requires will
always get served.
