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Re: [tor-bugs] #25344 [Obfuscation/Snowflake]: proxy-go needs to relax between polls
#25344: proxy-go needs to relax between polls
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Reporter: dcf | Owner: (none)
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Obfuscation/Snowflake | Version:
Severity: Normal | Resolution:
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by dcf):
#23356 shows the consequence if proxy-go gets into a tight loop of
connection failures.
> A power outage disconnected the network of a laptop on which I was
running proxy-go. The laptop battery kept the computer running until the
power came back on, but the network was still down. When I checked on it,
the log was filled with 2.4 GB of
> {{{
> 2017/08/29 10:02:33 error polling broker: Post https://snowflake-
reg.appspot.com/proxy: dial tcp: lookup snowflake-reg.appspot.com on <dns
server>:53: dial udp <dns server>:53: connect: network is unreachable
> 2017/08/29 10:02:33 error polling broker: Post https://snowflake-
reg.appspot.com/proxy: dial tcp: lookup snowflake-reg.appspot.com on <dns
server>:53: dial udp <dns server>:53: connect: network is unreachable
> 2017/08/29 10:02:33 error polling broker: Post https://snowflake-
reg.appspot.com/proxy: dial tcp: lookup snowflake-reg.appspot.com on <dns
server>:53: dial udp <dns server>:53: connect: network is unreachable
> }}}
>
> There were 11,879,088 of these messages over the course of about an hour
(according to the log timestamps), so about 3,330 messages per second.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25344#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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