Observability_at_Google_--_OSCON.pdf

Transcript

1. Observability at Google JBD, Google (@rakyll)

2. @rakyll History Long history of distributed systems 10ks of different

   services built by 100s of teams Many backends/analysis tools invented here ™

3. @rakyll

4. @rakyll 100% availability (is a lie)

5. “ @rakyll A service is available if users cannot tell

   there is an outage.

6. “ @rakyll Google Load Balancers are available if users cannot

   tell there is an outage.

7. @rakyll Principled way of saying what level of downtime is

   acceptable. • Error rate • Latency expectations SLOs

8. @rakyll An observable system tells more than its availability.

9. @rakyll Context, status, expectations, debuggability

10. @rakyll How? Observe by collecting signals Export them to analysis

    tools Correlate and analyze to find root cause

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15. @rakyll This is hard Must have integrations for web, RPC,

    and storage clients Must support all languages Must be context aware (e.g. canary vs prod) Must support many analysis tools Developers need to add custom instrumentation

16. @rakyll This is too hard!

17. @rakyll Borg Stubby Census

18. opencensus.io

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23. @rakyll Z-Pages • Allows processes report their own dashboards. •

    Z-Pages have no sampling.

24. @rakyll Try! import “go.opencensus.io/plugin/ocgrpc” s := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{})) if err :=

    s.Serve(lis); err != nil { log.Fatalf("Failed to serve: %v", err) }

25. @rakyll import ( “go.opencensus.io/stats/view” “go.opencensus.io/trace” “contrib.go.opencensus.io/exporter/stackdriver” ) exporter, err :=

    stackdriver.NewExporter(stackdriver.Options{ … }) if err != nil { log.Fatal(err) } view.RegisterExporter(exporter) trace.RegisterExporter(exporter)

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28. @rakyll Roadmap Stable libraries in 8+ languages Exporter daemon Cluster-wide

    Z-Pages Smart sampling Exemplars Framework, database, MQ integrations

29. opencensus.io

30. Thank you! opencensus.io JBD, Google jbd@google.com @rakyll