@Override
            public void onCompleted() {
                responseObserver.onNext(Commands.newBuilder().build());
                responseObserver.onCompleted();
            }
Collect and process the performance data and error log.
oap-server/server-receiver-plugin/skywalking-browser-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/browser/provider/handler/grpc/BrowserPerfServiceHandler.java