No Collector
Why and how to send signals directly from app to backends
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The simplest pattern is not to use a collector at all. This pattern consists of applications instrumented with an OpenTelemetry SDK that export telemetry signals (traces, metrics, logs) directly into a backend:
Example
See the code instrumentation for programming languages for concrete end-to-end examples for how to export signals from your app directly into a backend.
Tradeoffs
Pros:
- Simple to use (especially in a dev/test environment)
- No additional moving parts to operate (in production environments)
Cons:
- Requires code changes if collection, processing, or ingestion changes
- Strong coupling between the application code and the backend
- There are limited number of exporters per language implementation
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