master ui add raft stats and Max Volume Id

weed/server/master_server_handlers_ui.go

@@ -15,6 +15,7 @@ import (
 func (ms *MasterServer) uiStatusHandler(w http.ResponseWriter, r *http.Request) {
 	infos := make(map[string]interface{})
 	infos["Up Time"] = time.Now().Sub(startTime).String()
+	infos["Max Volume Id"] = ms.Topo.GetMaxVolumeId()
 	if ms.Topo.RaftServer != nil {
 		args := struct {
 			Version           string

weed/server/master_ui/masterNewRaft.html

@@ -64,6 +64,17 @@
                 </tr>
                 {{ end }}
             </table>
+            <h2>Raft Stats</h2>
+            <table class="table table-condensed table-striped">
+                <tr>
+                    <th>applied_index</th>
+                    <td>{{ .RaftServer.Stats.applied_index }}</td>
+                </tr>
+                <tr>
+                    <th>last_log_term</th>
+                    <td>{{ .RaftServer.Stats.last_log_term }}</td>
+                </tr>
+            </table>
         </div>
     </div>