open-telemetry/opentelemetry-demo 3.1.0

on GitHub

Breaking changes

• currency: Bump opentelemetry-cpp to 1.28.0 and migrate the RPC span attributes it deprecates to the current semantic conventions (#3967)
  rpc.system is replaced by rpc.system.name, rpc.service is folded into a
  fully-qualified rpc.method (for example oteldemo.CurrencyService/Convert),
  and the integer rpc.grpc.status_code is replaced by the string
  rpc.response.status_code.

Enhancements

• agent: Add aiSlowResponse and aiRunawayAgent feature flags to simulate LLM latency degradation and a runaway/looping agent (#3933)
• cart: Report health to the demo's OpAMP server when running with the observability stack (#3656)
• chatbot: Report health to the demo's OpAMP server when running with the agentic and observability stacks (#3808)
• checkout, product-catalog: Enable Go SDK self-observability metrics. (#3936)
• checkout, product-catalog: Bump go.opentelemetry.io/contrib to the v1.46.0/v0.71.0 release line, picking up otelgrpc recording error.type on RPC duration metrics for failed calls (#3901)
• collector: Add a data redaction/deletion example: delete, hash, and partially mask sensitive attributes with the transform processor, plus a documented redaction-processor fallback (#3662)
• collector: Gate raw PII emission (user.email, demo.payment.card_number, demo.payment.card_cvv) behind the new emitRawPii feature flag (off by default) in checkout/payment, and layer the purpose-built redaction processor alongside transform/redact_sensitive_data as a key-name safety net (#3867)
• docker: Add environment terms to compose.yaml to allow OTEL_EXPORTER_OTLP_METRICS_DEFAULT_HISTOGRAM_AGGREGATION to be overridden by .env.override. (#3961)
• flagd-ui: Add a scheduler that periodically activates randomly picked feature flags for a random duration, so failure scenarios appear and disappear on their own without external tooling (#2375)
  Configurable interval, minimum and maximum hold duration, how many flags run
  at once, per variant flag selection, and an optional seed for reproducible
  patterns.
• grafana: Show service names in the event volume table. (#3937)
• grafana: Add SDK processor throughput panels to the self-observability dashboard. (#3935)
• load-generator: Revert #3564: replace k6 with the pre-k6 Locust-based load generator, removing the now-unused loadGeneratorTraffic and loadGeneratorVUs feature flags along with it (#3873)
• payment: Add error.type attribute to error spans in charge.js and index.js to align with OpenTelemetry Semantic Conventions for errors (#3758)
• product-catalog: Add productCatalogLockContention flag to simulate database lock contention (#3930)
• product-catalog: Report health to the demo's OpAMP server when running with the observability stack. (#3807)
• python: Enable SDK self-observability metrics for the agent, chatbot, load-generator, MCP, and recommendation services (#3932)
• repo: Manage the changelog with per-PR .chloggen fragment files (chloggen) instead of hand-editing the shared CHANGELOG.md Unreleased section, eliminating changelog merge conflicts (#3926)
  Contributors now run make chlog-new to add a fragment; fragments are folded
  into CHANGELOG.md at release time with make chlog-update VERSION=x.x.x. See
  CONTRIBUTING.md for the workflow.

Bug fixes

• checkout: Bound order confirmation email requests so an unavailable email service cannot block orders until the caller deadline. (#3879)

• checkout: Fix synchronous srv.Serve call blocking signal handler registration, enabling graceful SIGTERM shutdown and preventing OpenTelemetry telemetry drops. (#3865)

• payment: Fix gRPC server not starting by calling server.start() after bindAsnc() (#3844)
  The server bound to the port but was never started to accept connections,
  causing the service to fail its health checks.

• podman: This work updates all dockerfiles to make them compatible with podman build (#3880)
  Podman's buildah is stricter compared to Dockers buildkit. For example using EXPOSE
  in Dockerfiles without specifying a ARG will work fine in Docker but in Podman this fails.

• recommendation: Align the recommendation request metric unit with its telemetry schema. (#3615)
  Change the emitted demo.recommendation.requests unit from
  recommendations to {recommendation}.

• react-native-app: Fix SessionGateway.setSessionValue to await getSession(), preventing stored session corruption and loss of userId (#3765)

• react-native-app: Catch errors from placeOrder in the Cart screen and show an error toast so payment failures are visible to the user instead of being silently dropped (#3760)

• react-native-app: Render missing City and State input fields in CheckoutForm (#3754)

• shipping: Fix floating-point truncation in create_quote_from_float and add two-digit zero padding to fmt::Display for Quote (#3877)

New Contributors

• @Adii-45 made their first contribution in #3662
• @1265433359-hash made their first contribution in #3958
• @oleksandr-zhyhalo made their first contribution in #3964
• @TobiTomson made their first contribution in #3868
• @ywwg made their first contribution in #3961

Full Changelog: 3.0.0...3.1.0