Start the Collector locally to see data being exported. Write the following file:
# otel-collector-config.yaml
receivers:
otlp:
protocols:
grpc:
endpoint: 0.0.0.0:4317
exporters:
debug:
processors:
batch:
service:
pipelines:
metrics:
receivers: [otlp]
exporters: [debug]
Then start the Docker container:
docker run \
-p 4317:4317 \
-v $(pwd)/otel-collector-config.yaml:/etc/otel/config.yaml \
otel/opentelemetry-collector-contrib:latest
The resulting metrics will appear in the output from the collector and look similar to this:
ScopeMetrics #0
ScopeMetrics SchemaURL:
InstrumentationScope getting-started 0.1.2
Metric #0
Descriptor:
-> Name: counter
-> Description:
-> Unit:
-> DataType: Sum
-> IsMonotonic: true
-> AggregationTemporality: Cumulative
NumberDataPoints #0
StartTimestamp: 2024-08-09 11:21:42.145179 +0000 UTC
Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
Value: 1
Metric #1
Descriptor:
-> Name: updown_counter
-> Description:
-> Unit:
-> DataType: Sum
-> IsMonotonic: false
-> AggregationTemporality: Cumulative
NumberDataPoints #0
StartTimestamp: 2024-08-09 11:21:42.145202 +0000 UTC
Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
Value: -4
Metric #2
Descriptor:
-> Name: histogram
-> Description:
-> Unit:
-> DataType: Histogram
-> AggregationTemporality: Cumulative
HistogramDataPoints #0
StartTimestamp: 2024-08-09 11:21:42.145221 +0000 UTC
Timestamp: 2024-08-09 11:21:42.145325 +0000 UTC
Count: 1
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