Redis部署必备手册{{1026}}

ゝ一世哀愁。 2022-05-22 00:54 161阅读 0赞

##                                                          Redis运维 ##

前提：

redis安装后，测试连接、测试集群等等是需要首先验证的，不然程序排查问题很不方便

1、redis.config配置文件配置

#占位符号

2、服务端 启动redis（在相应执行文件目录下执行，如bin或者src目录下）

./redis-server ../redis.conf

3、客户端连接服务端

./redis-cli -h 10.2.8.120 -p 8020

连接后可以通过get或者set命令测试服务是否正常运行

也可以通过常用命令操作redis

#查询所有的keys
    
    keys *

通用可以使用 **info replication**命令查看主从信息

[root@localhost bin]# ./redis-cli -h 10.2.8.120 -p 8020
    10.2.8.120:8020> info replication
    # Replication
    role:slave
    master_host:10.2.8.119
    master_port:8020
    master_link_status:up
    master_last_io_seconds_ago:1
    master_sync_in_progress:0
    slave_repl_offset:3900010
    slave_priority:100
    slave_read_only:1
    connected_slaves:0
    master_replid:d9a59d90ef91ae28e94bb66378088b2c56989901
    master_replid2:0000000000000000000000000000000000000000
    master_repl_offset:3900010
    second_repl_offset:-1
    repl_backlog_active:1
    repl_backlog_size:1048576
    repl_backlog_first_byte_offset:3866899
    repl_backlog_histlen:33112
    10.2.8.120:8020>

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2、客户端测试：

./redis\-cli\-h127.0.0.1-p6379\-a Passw0rd

3、配置日志、守护集成、端口

![70][]

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## 1、错误解决方法： ##

## (error) DENIED Redis is running in protected mode because protected mode is enabled ##

*  Redis protected-mode 是3.2 之后加入的新特性，在Redis.conf的注释中，我们可以了解到，他的具体作用和启用条件

链接redis 时只能通过本地localhost (127.0.0.1）这个来链接，而不能用网络ip(192.168..)这个链接，问题然如果用网络ip 链接会报以下的错误：

(error) DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified, no authentication password is requested to clients. In this mode connections are only accepted from the lookback interface. If you want to connect from external computers to Redis you may adopt one of the following solutions: 1) Just disable protected mode sending the command 'CONFIG SET protected-mode no' from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent. 2) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to 'no', and then restarting the server. 3) If you started the server manually just for testing, restart it with the --portected-mode no option. 4) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.

是说处于保护模式，只能本地链接，我们需要修改配置文件../redis.conf   
1)打开配置文件把下面对应的注释掉

# bind 127.0.0.1

2)Redis默认不是以守护进程的方式运行，可以通过该配置项修改，使用yes启用守护进程，设置为no

daemonize no

3)保护模式

protected-mode no

[70]: /images/20220522/58195d735a4a4d22b1f21a7c19de9c99.png