[metrics-bugs] #30612 [Metrics/Website]: Replace timeouts-and-failures graph with errorcodes graph

[Tor Bug Tracker & Wiki]

#30612: Replace timeouts-and-failures graph with errorcodes graph
-----------------------------+------------------------------
 Reporter:  karsten          |          Owner:  metrics-team
     Type:  enhancement      |         Status:  needs_review
 Priority:  Medium           |      Milestone:
Component:  Metrics/Website  |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:                   |  Actual Points:
Parent ID:  #29507           |         Points:
 Reviewer:  irl              |        Sponsor:
-----------------------------+------------------------------
Changes (by karsten):

 * status:  new => needs_review
 * reviewer:   => irl


Comment:

 Here are two samples of the new graph containing error codes rather than
 generic failures and timeouts:

 [[Image(onionperf-errorcodes-public.png, 600px)]]

 [[Image(onionperf-errorcodes-onion.png​, 600px)]]

 These are based on graphs I made for #29787 where we discussed how to
 extract error codes from logs. The graphs above are tailored for the Tor
 Metrics website.

 Setting needs_review for the graphs. The code will have to wait until
 #29787, #30602, and #30610 are resolved.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30612#comment:1>
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