Metrics Exporter - Standard output
Status: Stable
“Standard output” Metrics Exporter is a Push Metric Exporter which outputs the metrics to stdout/console.
The exporter’s output format is unspecified and can vary between implementations. Documentation SHOULD warn users about this. The following wording is recommended (modify as needed):
This exporter is intended for debugging and learning purposes. It is not recommended for production use. The output format is not standardized and can change at any time.
If a standardized format for exporting metrics to stdout is desired, consider using the File Exporter, if available. However, please review the status of the File Exporter and verify if it is stable and production-ready.
OpenTelemetry SDK authors MAY choose the best idiomatic name for their language. For example, ConsoleExporter, StdoutExporter, StreamExporter, etc.
“Standard output” Metrics Exporter MUST provide configuration to set
the MetricReader output temporality as a function of
instrument kind. This option MAY be named temporality, and MUST set
temporality to Cumulative for all instrument kinds by default.
“Standard output” Metrics Exporter MAY provide configuration to set
the MetricReader default aggregation as a function
of instrument kind. This option MAY be named default_aggregation, and MUST use
the default aggregation by default.
If a language provides a mechanism to automatically configure a
MetricReader to pair with the associated
exporter (e.g., using the OTEL_METRICS_EXPORTER environment
variable), by
default the exporter MUST be paired with a periodic exporting
MetricReader
with a default exportIntervalMilliseconds of 10000.
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