Jordan Whited 0d6e71df70
cmd/stunstamp: add explicit metric to track timeout events (#12564)
Timeouts could already be identified as NaN values on
stunstamp_derp_stun_rtt_ns, but we can't use NaN effectively with
promql to visualize them. So, this commit adds a timeouts metric that
we can use with rate/delta/etc promql functions.

Updates tailscale/corp#20689

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2024-06-21 09:17:35 -07:00
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