redis cluster 设置密码

redis集群设置密码(需重启实例)
1.修改redis 所有集群中的配置文件redis.conf

masterauth passwd 
requirepass passwd

2.登录各实例修改
config set masterauth passwd
config set requirepass passwd
config rewrite
注：设置的各实例密码必须保持一致，否则集群会失败

3.设置密码后，若使用redis-trb.rb会报错，修改文件client.rb中的password

class Client
DEFAULTS = {
:url => lambda { ENV["REDIS_URL"] },
:scheme => "redis",
:host => "127.0.0.1",
:port => 6379,
:path => nil,
:timeout => 5.0,
:password => "passwd",
:db => 0,
:driver => nil,
:id => nil,
:tcp_keepalive => 0,
:reconnect_attempts => 1,
:inherit_socket => false
}

可通过：find / -name "client.rb" 查找
/usr/local/gems/ruby-2.3.3/gems/redis-4.0.0/lib/redis/client.rb