部署mongodb叢集時,rs.initiate(config)初始化配置時報錯

問題：mongodb配置完複製集檔案進行初始化時報錯：

"ok" : 0, "errmsg" : "replSetInitiate quorum check failed because not all proposed set members responded affirmatively: 172.24.240.103:28001 failed with No route to host, 172.24.240.104:28001 failed with No route to host, 172.24.240.105:28001 failed with No route to host",
"code" : 74,

"codeName" : "NodeNotFound"

解決方案：

由於mongodb分布式複製集初始化時需要各個節點之間的通話，所以需要將各個節點上的防火牆進行關閉。

方法一：命令為：# service iptables stop   （即時生效，臨時關閉防火牆，重系統後防火牆會自動開啟）

方法二：# chkconfig iptables off  （重啟後生效，永久關閉防火牆）