Commit Graph

4 Commits

Author SHA1 Message Date
Sudarsan Reddy 99f39225f1 TUN-6617: Dont fallback to http2 if QUIC conn was successful.
cloudflared falls back aggressively to HTTP/2 protocol if a connection
attempt with QUIC failed. This was done to ensure that machines with UDP
egress disabled did not stop clients from connecting to the cloudlfare
edge. This PR improves on that experience by having cloudflared remember
if a QUIC connection was successful which implies UDP egress works. In
this case, cloudflared does not fallback to HTTP/2 and keeps trying to
connect to the edge with QUIC.
2022-08-12 08:40:03 +00:00
Sudarsan Reddy d3fd581b7b Revert "TUN-6617: Dont fallback to http2 if QUIC conn was successful."
This reverts commit 679a89c7df.
2022-08-11 20:27:22 +01:00
Sudarsan Reddy 679a89c7df TUN-6617: Dont fallback to http2 if QUIC conn was successful.
cloudflared falls back aggressively to HTTP/2 protocol if a connection
attempt with QUIC failed. This was done to ensure that machines with UDP
egress disabled did not stop clients from connecting to the cloudlfare
edge. This PR improves on that experience by having cloudflared remember
if a QUIC connection was successful which implies UDP egress works. In
this case, cloudflared does not fallback to HTTP/2 and keeps trying to
connect to the edge with QUIC.
2022-08-11 17:55:10 +00:00
Nuno Diegues 1ee540a166 TUN-5368: Log connection issues with LogLevel that depends on tunnel state
Connections from cloudflared to Cloudflare edge are long lived and may
break over time. That is expected for many reasons (ranging from network
conditions to operations within Cloudflare edge). Hence, logging that as
Error feels too strong and leads to users being concerned that something
is failing when it is actually expected.

With this change, we wrap logging about connection issues to be aware
of the tunnel state:
 - if the tunnel has no connections active, we log as error
 - otherwise we log as warning
2021-11-10 09:00:05 +00:00