[tor-bugs] #29787 [Metrics/Onionperf]: Enumerate possible failure cases and include failure information in .tpf output

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#29787: Enumerate possible failure cases and include failure information in .tpf
output
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 Reporter:  karsten            |          Owner:  metrics-team
     Type:  enhancement        |         Status:  new
 Priority:  Medium             |      Milestone:
Component:  Metrics/Onionperf  |        Version:
 Severity:  Normal             |     Resolution:
 Keywords:                     |  Actual Points:
Parent ID:                     |         Points:
 Reviewer:                     |        Sponsor:
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Comment (by karsten):

 Interesting! These sound like they could be very useful to better
 understand how the application observes failures and timeouts. But as you
 say, we'll probably have to further correlate these error codes with
 torctl logs to get a better insight into failures observed by the tor
 process.

 Ideally, we'd have combined error cases/codes for failures/timeouts
 observed by the application ''and'' the tor process, rather than including
 OnionPerf's error code and then something from torctl events in .tpf
 output. Or we'll have to specify somewhere which combinations are possible
 and what exactly they mean. This is probably not trivial to do, but if we
 don't do it, others will try it and do it slightly wrong, so it's better
 if we do it.

 Can I help with the digging? Maybe we can share the digging work without
 duplicating the effort?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29787#comment:2>
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