add stats raft handler

weed/command/master.go

@@ -177,7 +177,7 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	ms.SetRaftServer(raftServer)
 	r.HandleFunc("/cluster/status", raftServer.StatusHandler).Methods("GET")
 	if *m.raftHashicorp {
-		//r.HandleFunc("/raft/stats", raftServer.).Methods("GET")
+		r.HandleFunc("/raft/stats", raftServer.StatsRaftHandler).Methods("GET")
 	}
 	// starting grpc server
 	grpcPort := *masterOption.portGrpc

weed/server/raft_server_handlers.go

@@ -25,3 +25,11 @@ func (s *RaftServer) StatusHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	writeJsonQuiet(w, r, http.StatusOK, ret)
 }
+
+func (s *RaftServer) StatsRaftHandler(w http.ResponseWriter, r *http.Request) {
+	if s.RaftHashicorp == nil {
+		writeJsonQuiet(w, r, http.StatusNotFound, nil)
+		return
+	}
+	writeJsonQuiet(w, r, http.StatusOK, s.RaftHashicorp.Stats())
+}