tailscale/net/netcheck
James Tucker aa04f61d5e net/netcheck: adjust HTTPS latency check to connection time and avoid data race
The go-httpstat package has a data race when used with connections that
are performing happy-eyeballs connection setups as we are in the DERP
client. There is a long-stale PR upstream to address this, however
revisiting the purpose of this code suggests we don't really need
httpstat here.

The code populates a latency table that may be used to compare to STUN
latency, which is a lightweight RTT check. Switching out the reported
timing here to simply the request HTTP request RTT avoids the
problematic package.

Fixes tailscale/corp#25095

Signed-off-by: James Tucker <james@tailscale.com>
2024-12-13 12:53:10 -08:00
..
netcheck.go net/netcheck: adjust HTTPS latency check to connection time and avoid data race 2024-12-13 12:53:10 -08:00
netcheck_test.go cmd/tailscale,net/netcheck: add debug feature to force preferred DERP 2024-12-04 16:52:56 -08:00
standalone.go