docker上配置redis集群报错

1:S 11 Aug 03:13:17.535 * Connecting to MASTER 192.168.0.11:6381
1:S 11 Aug 03:13:17.545 * MASTER <-> SLAVE sync started
1:S 11 Aug 03:13:17.547 # Error condition on socket for SYNC: Connection refused
1:S 11 Aug 03:13:18.563 * Connecting to MASTER 192.168.0.11:6381
1:S 11 Aug 03:13:18.574 * MASTER <-> SLAVE sync started
1:S 11 Aug 03:13:18.576 # Error condition on socket for SYNC: Connection refused
1:S 11 Aug 03:13:19.594 * Connecting to MASTER 192.168.0.11:6381
1:S 11 Aug 03:13:19.605 * MASTER <-> SLAVE sync started
1:S 11 Aug 03:13:19.608 # Error condition on socket for SYNC: Connection refused
1:S 11 Aug 03:13:20.629 * Connecting to MASTER 192.168.0.11:6381
1:S 11 Aug 03:13:20.632 * MASTER <-> SLAVE sync started
1:S 11 Aug 03:13:20.634 # Error condition on socket for SYNC: Connection refused

解决方案：

redis.conf中修改bind字段，将

redis.conf中修改bind字段，将
bind 127.0.0.1 改为 bind 0.0.0.0
或者注释掉（测试注释掉似乎不起作用）

原因： 
redis服务器绑定了127.0.0.1，跨服务器IP的访问就会失败，slave服务器用IP和端口访问master的时候，master发现本机6379端口绑在了127.0.0.1上，也就是只能本机才能访问，外部请求会被过滤，如果bind的IP地址是192.168.0.11，那么本机通过localhost和127.0.0.1、或者直接输入命令redis-cli登录本机redis也就会失败了。只能加上本机ip才能访问到。 
所以，在研发、测试环境可以考虑bind 0.0.0.0，线上生产环境建议绑定IP地址。