wu-sheng commented on code in PR #9817:
URL: https://github.com/apache/skywalking/pull/9817#discussion_r1000202009
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docs/en/setup/backend/exporter.md:
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@@ -0,0 +1,161 @@
+# Exporter
+SkyWalking provides the essential functions of metrics aggregation, trace,
log, alarm, and analysis.
+In many real-world scenarios, users may want to forward their data to a 3rd
party system for further in-depth analysis.
+**Exporter** has made that possible.
+
+The exporter is an independent module that has to be manually activated.
+
+Right now, we provide the following exporters:
+1. gRPC Exporter
+- Metrics
+2. Kafka Exporter
+- Trace
+- Log
+
+## gRPC Exporter
+### Metrics gRPC Exporter
+Metrics gRPC exporter uses SkyWalking's native exporter service definition.
Here is the proto definition.
+```proto
+service MetricExportService {
+ rpc export (stream ExportMetricValue) returns (ExportResponse) {
+ }
+
+ rpc subscription (SubscriptionReq) returns (SubscriptionsResp) {
+ }
Review Comment:
Agree, we used to copy them, but copy should be better.
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