[tor-bugs] #30258 [Obfuscation/Snowflake]: Snowflake proxy stops working during browsing session

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#30258: Snowflake proxy stops working during browsing session
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 Reporter:  cohosh                 |          Owner:  cohosh
     Type:  defect                 |         Status:  assigned
 Priority:  Medium                 |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  snowflake              |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:  Sponsor19
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Comment (by cohosh):

 I'm having trouble reproducing the every 7min behaviour, but I do see the
 usual timeouts after 30s of inactivity (#25429). It's possible this has a
 noticeable affect on the browsing experience if the user makes a new
 request right as the client is timing out.

 In any case, this seems to be a client-side issue rather than with the
 proxies. There's two possible quick solutions:
 1. We could set the timeout to a much larger values as suggested in #25429
 2. We could set the snowflake client option `-max 2` or some number higher
 than the default of 1. I'm not entirely sure whether this will help but
 the source code seems to suggest that we will then collect 2 snowflakes
 and can switch to the other one when one snowflake stops working (or times
 out).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30258#comment:1>
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