Hey all. For the past few days, I have noticed very high latency on my website. I recently added my first US based machine, and since then, I’ve noticed the issue. Previously, I only had an AMS machine. Now, I have one machine in FRA and one in IAD.
I tried to debug where the routing was leading and used the fly-request-id header to do so. The last part seems to indicate the machine or edge where the request either left or entered. I first tried using debug.fly.dev, which showed me EWR as the Fly-Region header. As of today, it now shows CDG, which is correct. However, for my own site, the routing changed from EWR to SIN, which is still much too far. I also tried another Fly provided service (worldpagespeed.fly.dev), which also routed my traffic through SIN, resulting in high latency.
I tested this with both my home connection and mobile carrier, and both routed my traffic through SIN. However, when I tried from my Windows Server hosted at Hetzner, it routed my traffic through CDG. Im located in Germany.
since this morning it seems to route correctly again with my home connection and my mobile carrier, it now enters or leaves at AMS. (fly-request-id ends in -ams)
This is an issue I’m having as well. I am near PHX, USA but all of my traffic seems to be routed to LHR. Sadly my ISP does not support ipv6 so I cannot test that.
~ ❯❯❯ curl -s -I -H "flyio-debug: doit" http://debug.fly.dev | grep flyio-debug
flyio-debug: {"n":"edge-cf-lon1-8e62","nr":"lhr","ra":"67.1.197.253","rf":"Verbatim","sr":"lhr","sdc":"lon1","sid":"e148e2365a7892","st":0,"nrtt":0,"bn":"worker-cf-lon1-ac54","fbn":null}
~ ❯❯❯ traceroute debug.fly.dev
traceroute to debug.fly.dev (77.83.140.164), 30 hops max, 60 byte packets
1 _gateway (192.168.0.1) 0.713 ms 0.754 ms 0.795 ms
2 tcso-dsl-gw26.tcso.qwest.net (75.160.240.26) 9.748 ms 9.589 ms 10.097 ms
3 tcso-agw1.inet.qwest.net (75.160.241.201) 9.679 ms 10.028 ms 10.124 ms
4 ae16.edge2.phx1.sp.lumen.tech (4.68.73.122) 14.184 ms 14.220 ms 14.322 ms
5 * * *
6 4.30.181.50 (4.30.181.50) 68.451 ms 77.403 ms 67.164 ms
7 ae1-5.rt.thn.lon.uk.retn.net (87.245.233.230) 136.680 ms 131.095 ms 131.060 ms
8 87.245.208.155 (87.245.208.155) 131.373 ms 158.138 ms 131.272 ms
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