Choose OpenTelemetry sampling from when the decision must be made
Head sampling does not inspect the whole trace; tail sampling can select traces using error or latency criteria.
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Minimize sensitive OpenTelemetry data before relying on downstream redaction
The simplest exposure to avoid is information the pipeline never needed to collect.
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Use OpenTelemetry diagnostic exporters without exposing real payloads
Detailed Collector debug output can print the entire telemetry payload.
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Enable configured OpenTelemetry components in the service section
A receiver definition can exist in the file without participating in any running pipeline.
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Monitor the OpenTelemetry Collector separately from application telemetry
A healthy application does not prove that its collection service can receive and export observations.
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Route complete traces to the intended OpenTelemetry processing gateway
Ordinary traffic distribution may be insufficient when a processor needs all spans from one trace.
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Define OpenTelemetry Collector loss boundaries before increasing queues
Retrying and buffering reduce some interruptions but cannot guarantee that every telemetry item survives.
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Budget Prometheus label values before adding high-cardinality dimensions
Every distinct label set creates another time series with real operating cost.
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Design Prometheus recovery beyond a single local data directory
Long retention on one disk is different from replicated and recoverable monitoring history.
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Inspect PromQL vector matching when a ratio unexpectedly disappears
Arithmetic combines matching label sets; an unmatched input is not automatically treated as zero.
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