Method OnLog

internal/nodehub/hub.go:44–44

(nodeID, reqID string, body []byte)

	// OnUsagePush 返回 nil 时，hub 会向 node ack。
	OnUsagePush(nodeID string, seq uint64, body []byte) error
	OnLog(nodeID, reqID string, body []byte)
	OnTracerouteHop(nodeID, reqID string, body []byte)
}