Onion Service (v2) hosting Tor instance reporting under high load: Failed to find node for hop #1 of our path. Discarding this circuit.
An onion hosting Tor instance is reporting strange stuff for the last 3 days. The server was attacked (DOS / SYN Flood last days), so maybe this could have triggered some network connection changes but the connection remained active / online. The torrc is very simple:
SocksPort 127.0.0.1:9050
ControlPort 0
HiddenServiceDir /var/lib/tor/tor_hs
HiddenServiceVersion 2
HiddenServicePort <port> 127.0.0.1:<port>
May 12 11:16:08.000 [notice] Your network connection speed appears to have changed. Resetting timeout to 60s after 18 timeouts and 362 buildtimes.
May 12 22:20:32.000 [notice] No circuits are opened. Relaxed timeout for circuit 398807 (a Hidden service: Connecting to rendezvous point 4-hop circuit in state doing handshakes with channel state open) to 106324ms. However, it appears the circuit has timed out anyway. [16 similar message(s) suppressed in last 3600 seconds]
May 13 11:05:36.000 [notice] No circuits are opened. Relaxed timeout for circuit 399137 (a General-purpose client 3-hop circuit in state waiting to see how other guards perform with channel state open) to 106324ms. However, it appears the circuit has timed out anyway. [27 similar message(s) suppressed in last 3600 seconds]
May 14 21:27:36.000 [warn] Failed to find node for hop #1 of our path. Discarding this circuit.
May 14 21:27:36.000 [notice] Our circuit 0 (id: 400112) died due to an invalid selected path, purpose General-purpose client. This may be a torrc configuration issue, or a bug. [8 similar message(s) suppressed in last 3600 seconds]
I wish I could reproduce the last one. Could this be a bug that occurs when our primary #1 Guard is in consensus but not reachable just for a certain machine / IP?