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一、部署

詳細部署步驟：https://blog.csdn.net/lihongtai/article/details/82826809

Redis5.0版本需要注意的參數配置：https://www.cnblogs.com/ibethfy/p/9965902.html

二、遇到的問(wèn)題

1、bind公網(wǎng)IP地址時(shí)，會(huì )出現異常：【Cannot assign requested address】

　　首先理解bind的含義：https://blog.csdn.net/cw_hello1/article/details/83444013

　　原因：這里無(wú)法bind公網(wǎng)IP地址，是因為ECS的本地IP是通過(guò)NAT技術(shù)轉換成了公網(wǎng)IP，即公網(wǎng)IP不是ECS任意一個(gè)網(wǎng)卡上的IP

　　解決方案：bind 0.0.0.0，這樣不論阿里云私網(wǎng)還是公網(wǎng)均可以訪(fǎng)問(wèn)

2、SpringBoot配置Redis主備哨兵集群后，無(wú)法連接

　　原因：ECS實(shí)例既綁定了私網(wǎng)IP地址，也綁定了公網(wǎng)IP地址，哨兵會(huì )將監控的Redis實(shí)例IP地址收集管理起來(lái)，設置bind 0.0.0.0后，使得哨兵會(huì )收集這兩個(gè)IP地址，而連接時(shí)使用的是私網(wǎng)IP地址，故無(wú)法連接

　　解決方案：修改哨兵配置文件sentinel.conf，【sentinel announce-ip 哨兵所在的公網(wǎng)IP】

　　announce-ip配置項的官方解釋如下：

# sentinel announce-ip <ip>
# sentinel announce-port <port>
#
# The above two configuration directives are useful in environments where,
# because of NAT, Sentinel is reachable from outside via a non-local address.
#
# When announce-ip is provided, the Sentinel will claim the specified IP address
# in HELLO messages used to gossip its presence, instead of auto-detecting the
# local address as it usually does.
#
# Similarly when announce-port is provided and is valid and non-zero, Sentinel
# will announce the specified TCP port.
#
# The two options don't need to be used together, if only announce-ip is
# provided, the Sentinel will announce the specified IP and the server port
# as specified by the "port" option. If only announce-port is provided, the
# Sentinel will announce the auto-detected local IP and the specified port.

　　大致意思是：考慮到NAT網(wǎng)絡(luò )的存在，設置非本地IP后，哨兵可以正常地被外部訪(fǎng)問(wèn)

　　同時(shí)，哨兵啟動(dòng)后，通過(guò)觀(guān)察配置文件sentinel.conf，發(fā)現已不會(huì )收集Redis實(shí)例的私網(wǎng)IP

　　最后SpringBoot可以正常連接Redis主備哨兵集群

注：以上場(chǎng)景為一主三備兩哨兵，一主一備一哨兵在同一個(gè)ECS實(shí)例上，兩備一哨兵在另一個(gè)ECS實(shí)例上，這兩個(gè)ECS實(shí)例在同一個(gè)區域，屬于同一個(gè)私有網(wǎng)段，且均綁定了公網(wǎng)IP