有些东西需要改一下.
如果找不到, vim请用命令/somthing.

  1. 配置大小单位
    支持字节, 不支持位, 不区分大小写

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    # Note on units: when memory size is needed, it is possible to specify
    # it in the usual form of 1k 5GB 4M and so forth:
    #
    # 1k => 1000 bytes
    # 1kb => 1024 bytes
    # 1m => 1000000 bytes
    # 1mb => 1024*1024 bytes
    # 1g => 1000000000 bytes
    # 1gb => 1024*1024*1024 bytes
    #
    # units are case insensitive so 1GB 1Gb 1gB are all the same.

  2. INCLUDE
    在该文件中可以包含其他文件的内容.

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    # If instead you are interested in using includes to override configuration
    # options, it is better to use include as the last line.
    #
    # include /path/to/local.conf
    # include /path/to/other.conf

  3. NETWORK

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    bind: 127.0.0.1 -::1
    #只能通过本地访问, 注释掉就可以支持远程连接了
    ...
    protect-mode yes
    #本地访问保护, 将yes改为no, 就可以远程访问了
    ...
    port 6379
    #默认端口号
    ...
    tcp-backlog 511
    #连接队列, 未完成的tcp三次握手和已完成的tcp三次握手, 每300s检测一次.

  4. GENERAL

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    daemonize yes
    #前篇中, 为了支持后台启动, 将no改为了yes
    ...
    pidfile /var/run/redis_6379.pid
    #保存进程号文件位置
    ...
    # Specify the server verbosity level.
    # This can be one of:
    # debug (a lot of information, useful for development/testing)
    # verbose (many rarely useful info, but not a mess like the debug level)
    # notice (moderately verbose, what you want in production probably)
    # warning (only very important / critical messages are logged)

    loglevel notice
    #日志级别, 上面是四个级别, 默认notice
    ...
    logfile ""
    #输出日志路径, 默认为空
    ...
    databases 16
    #默认16个库

  5. SECURITY

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    # requirepass foobared
    #默认没有密码, 可以手动打开, 在设置中设置密码只是临时的, 重启就还原了, 永久设置需要在配置文件中设置
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    #通过命令的方式设置密码
    config get requirepass
    config set requirepass "123456"
    auth 123456

  6. CLIENTS

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    # maxclients 10000
    #设置客户端最大连接数, 默认10000.

  7. MEMORY MANAGEMENT

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    # maxmemory <bytes>
    # 设置能占用的最大的内存, redis是内存数据库, 如果不设置, 容易将内存占满, 造成服务器宕机, 默认未设置

    # maxmemory-policy noeviction
    # 如果内存用满了, 显然要根据一定的算法策略移除部分数据, 移除规则由它指定
    # volatile-lru: LRU, 只对设置了过期时间的key
    # allkeys-lru: LRU, 所有key
    # volatile-random: 随机, 只对设置了过期时间的key
    # allkeys-random: 随机, 对于所有key
    # volatile-ttl: 移除ttl值最小的key, 即最近要过期的key
    # noeviction: 不进行移除, 针对写操作, 只是返回错误信息