kezhenxu94 commented on a change in pull request #4847:
URL: https://github.com/apache/skywalking/pull/4847#discussion_r454789951
##########
File path: docs/en/setup/backend/backend-receivers.md
##########
@@ -128,3 +129,20 @@ receiver-oc:
gRPCHost: ${SW_OC_RECEIVER_GRPC_HOST:0.0.0.0}
gRPCPort: ${SW_OC_RECEIVER_GRPC_PORT:55678}
```
+
+## Kafka receiver
+
+Kafka Receiver supports to receive `TraceSegment`, `JVMMetrics` and others of
Agent reported as gRPC Receiver.
+Currently, it has to connect to the whole topic or single partition of topic
when OAP is in cluster mode.
+And we have to configure **Zookeeper** as the OAP cluster management tool.
Review comment:
I suggest not to use too many different terms when you're saying the
same thing
```suggestion
And we have to configure **Zookeeper** as the OAP cluster coordinator.
```
##########
File path: docs/en/setup/backend/backend-receivers.md
##########
@@ -128,3 +129,20 @@ receiver-oc:
gRPCHost: ${SW_OC_RECEIVER_GRPC_HOST:0.0.0.0}
gRPCPort: ${SW_OC_RECEIVER_GRPC_PORT:55678}
```
+
+## Kafka receiver
+
+Kafka Receiver supports to receive `TraceSegment`, `JVMMetrics` and others of
Agent reported as gRPC Receiver.
+Currently, it has to connect to the whole topic or single partition of topic
when OAP is in cluster mode.
+And we have to configure **Zookeeper** as the OAP cluster management tool.
+
+**Suggestion and recommend**, creating the Kafka topics by self before OAP
Server starting. Although OAP server
+will create these if not exist.
+
+To active the `default` implementation:
+```yaml
+receiver-kafka:
+ selector: ${SW_RECEIVER_KAFKA:-}
Review comment:
`-` won't active the implementation, instead, it disables the
implementation
##########
File path: docs/en/setup/backend/backend-receivers.md
##########
@@ -128,3 +129,20 @@ receiver-oc:
gRPCHost: ${SW_OC_RECEIVER_GRPC_HOST:0.0.0.0}
gRPCPort: ${SW_OC_RECEIVER_GRPC_PORT:55678}
```
+
+## Kafka receiver
Review comment:
The doc on agent side is missing?
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