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Adds caveats to current exemplar support in the demo architecture #725

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Feb 1, 2023
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2 changes: 1 addition & 1 deletion docker-compose.yml
Original file line number Diff line number Diff line change
Expand Up @@ -628,7 +628,7 @@ services:

# OpenTelemetry Collector
otelcol:
image: otel/opentelemetry-collector-contrib:0.69.0
image: otel/opentelemetry-collector-contrib:0.70.0
container_name: otel-col
deploy:
resources:
Expand Down
6 changes: 5 additions & 1 deletion docs/demo_features.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ be added as the relevant SDKs are released.
Collector](https://opentelemetry.io/docs/collector/getting-started)**: all
services are instrumented and sending the generated traces and metrics to the
OpenTelemetry Collector via gRPC. The received traces are then exported to the
logs and to Jaeger; received metrics and exemplars are exported to logs and Prometheus.
logs and to Jaeger; received metrics and exemplars* are exported to logs and Prometheus.
- **[Jaeger](https://www.jaegertracing.io)**: all generated traces are being
sent to Jaeger.
- **Synthetic Load Generation**: the application demo comes with a background
Expand All @@ -30,3 +30,7 @@ be added as the relevant SDKs are released.
- **[Envoy](https://www.envoyproxy.io/)**: Envoy is used as a reverse proxy for
user-facing web interfaces such as the frontend, load generator, and feature
flag service.

_\*Only exemplars attached to histograms are currently exported to Prometheus.
See [issue in the collector](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/18201)
for details._