[metrics-bugs] #25144 [Metrics/Statistics]: op-us onionperf instance spends much of its time at 100% timeout failure: why?

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#25144: op-us onionperf instance spends much of its time at 100% timeout failure:
why?
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 Reporter:  arma                |          Owner:  metrics-team
     Type:  defect              |         Status:  new
 Priority:  Medium              |      Milestone:
Component:  Metrics/Statistics  |        Version:
 Severity:  Normal              |     Resolution:
 Keywords:                      |  Actual Points:
Parent ID:                      |         Points:
 Reviewer:                      |        Sponsor:
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Comment (by irl):

 It appeared to be running normally, I suspect it has a bug where it stops
 working. The obvious answer, "the tgen server went away and there was
 nothing to talk to", didn't seem to be the answer.

 Improving monitoring of metrics services is on the roadmap. As a temporary
 measure I can keep an eye on these CSV files to ensure that the service
 looks like it is running. A medium-term goal may be to write a Nagios
 plugin (relatively simple task) to check the latest CSV files for 100%
 failure rates and alert on that. A longer-term goal would be to both track
 down the cause of the failure, and to instrument OnionPerf to be able to
 notify of such failures before the 24h cycle is complete.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25144#comment:5>
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