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32 lines
1.3 KiB
Markdown
32 lines
1.3 KiB
Markdown
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# OpenTelemetry Collector Go Exporter
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[](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp)
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This exporter exports OpenTelemetry spans and metrics to the OpenTelemetry Collector.
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## Installation and Setup
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The exporter can be installed using standard `go` functionality.
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```bash
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$ go get -u go.opentelemetry.io/otel/exporters/otlp
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```
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A new exporter can be created using the `NewExporter` function.
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## Retries
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The exporter will not, by default, retry failed requests to the collector.
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However, it is configured in a way that it can be easily enabled.
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To enable retries, the `GRPC_GO_RETRY` environment variable needs to be set to `on`. For example,
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```
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GRPC_GO_RETRY=on go run .
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```
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The [default service config](https://github.com/grpc/proposal/blob/master/A6-client-retries.md) used by default is defined to retry failed requests with exponential backoff (`0.3seconds * (2)^retry`) with [a max of `5` retries](https://github.com/open-telemetry/oteps/blob/be2a3fcbaa417ebbf5845cd485d34fdf0ab4a2a4/text/0035-opentelemetry-protocol.md#export-response)).
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These retries are only attempted for reponses that are [deemed "retry-able" by the collector](https://github.com/grpc/proposal/blob/master/A6-client-retries.md#validation-of-retrypolicy).
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