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<wpp>
Hi, I'm having an issue where connections to aws-eu-cache01.rubygems.org (54.216.164.178) seem to be "freezing". Is this the right place to discuss?
<havenwood>
wpp: This is one of the best places but depending on the time and day it can take a while for a response. You might want to also ask in a bustling channel like #ruby.
<wpp>
havenwood ok. I think I'll just lay it out here and if nobody responds I'll head over to #ruby.
<wpp>
havenwood is that ok?
<havenwood>
wpp: Sounds good to me!
<wpp>
Ok, since monday or tuesday I've noticed that bundle installs "failed". I went home those days and could not reproduce the issue. It just seemed to happen @work
<wpp>
So today I noticed that curl -v https://aws-eu-cache01.rubygems.org sometimes "hangs" at * Connected to aws-eu-cache01.rubygems.org (54.216.164.178) port 443 (#0)
<wpp>
I put curl in an endless loop and could constantly reproduce the issue.
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<wpp>
unfortunately thats about as much information I could get from curl, so I installed wireshark (and X11 :)) recorded the requests and now I've loaded the file into wireshark
<wpp>
It seems like the TCP handshake works and we see the client hello from tls
<wpp>
but the server hello never makes it
<wpp>
a co-worker said he had experienced something where large packets were lost and he fixed it by setting the MTU (from 1500 to 1400)
<wpp>
that seemed to make the problem occur less often, but not fix it permanently.
<wpp>
I don't quite understand how the curl client gets into this "hanging" state btw, can someone make sense out of that tcp-flow I posted?
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<wpp>
seems like the server tries sending the hello, never gets ack and the [fin,acks]
<wpp>
curl [fin, acks] but why does it keep on re-transmitting at that point?
<imperator>
wpp, might have better luck in #curl
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<wpp>
imperator thanks for the suggestion, I will try
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<wpp>
Just in case someone might know someone...I've documented my problem here https://gist.github.com/wpp/286607220876d553d365 As I'm currently not able to reproduce from @home I'll just go to bed :) Thanks anyways!
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