这里主要是解释一下redis的redis.conf文件中的配置信息。自己翻译+总结出来的，会不断更新的。
配置的顺序是按照redis.conf中的顺序。加粗高亮的是redis默认配置。
配置文件的说明
# Redis configuration file example. # # Note that in order to read the configuration file, Redis must be # started with the file path as first argument: # [请注意，为了读取配置文件，Redis必须是以文件路径作为第一个参数开始：] # ./redis-server /path/to/redis.conf # 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: # [关于单位的注意事项：当需要内存大小需要（被指定）时，可以通常以1k 5GB 4M的形式指定它，依次类推：] # 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. # [单位是忽略大小写的，所以（配置）1GB 1Gb 1gB都是一样的]
INCLUDES
# Include one or more other config files here. This is useful if you # have a standard template that goes to all Redis servers but also need # to customize a few per-server settings. Include files can include # other files, so use this wisely. # [在此处包含一个或多个其他配置文件。 如果您有一个标准模板可用于所有Redis服务器，
# 但也需要自定义一些每服务器设置，这将非常有用。 # 包含文件可以包含其他文件，因此请明智地使用它。] # Notice option "include" won't be rewritten by command "CONFIG REWRITE" # from admin or Redis Sentinel. Since Redis always uses the last processed # line as value of a configuration directive, you'd better put includes # at the beginning of this file to avoid overwriting config change at runtime. # [注意，选项“include”将不会被来自管理员或者Redis哨兵的“CONFIG REWRITE”所覆盖。 因为redis总是使用最后处理的行为作为配置指令的值，你最好将include放在这个文件的开头， 以避免在运行时覆盖配置更改] # If instead you are interested in using includes to override configuration # options, it is better to use include as the last line. # [反之，如果你想用include去覆盖配置选项，最好在最后一行使用include] # include /path/to/local.conf # include /path/to/other.conf
MODULES
# Load modules at startup. If the server is not able to load modules # it will abort. It is possible to use multiple loadmodule directives. # [在启动时加载模块。如果服务器无法加载模块，它将终止。可以使用多个loadmodule指令] # loadmodule /path/to/my_module.so # loadmodule /path/to/other_module.so
NETWORK
# By default, if no "bind" configuration directive is specified, Redis listens # for connections from all the network interfaces available on the server. # It is possible to listen to just one or multiple selected interfaces using # the "bind" configuration directive, followed by one or more IP addresses. # [默认情况下，如果没有配置“bind”指令，Redis会监听在服务器上来自所有可用网络接口的连接。 # 可以使用“bind”配置指令只监听一个或者多个选定的接口，然后是一个或者多个IP地址] # Examples: # [例如:] # bind 192.168.1.100 10.0.0.1 # bind 127.0.0.1 ::1 # # ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the # internet, binding to all the interfaces is dangerous and will expose the # instance to everybody on the internet. So by default we uncomment the # following bind directive, that will force Redis to listen only into # the IPv4 lookback interface address (this means Redis will be able to # accept connections only from clients running into the same computer it # is running). # [~~~ 警告 ~~~如果运行Redis的电脑直接暴露在互联网上，绑定所有的接口是危险的， # 并且会将这个实例暴露给因特网上的所有人。因此，默认情况下，我们取消注释下面的bind指令， # 这将强制Redis仅侦听IPv4回溯接口地址（这就意味着Redis将只能接受来自本机的客户端的连接）。] # # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES # JUST COMMENT THE FOLLOWING LINE. # # [如果你确定你想要你的实例监听所有的接口，只需要注释掉下面这一行] # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bind 127.0.0.1 # Protected mode is a layer of security protection, in order to avoid that # Redis instances left open on the internet are accessed and exploited. # [保护模式是一层安全保护，以避免在Internet上打开的Redis实例被访问和利用。] # When protected mode is on and if: # # 1) The server is not binding explicitly to a set of addresses using the # "bind" directive. # 2) No password is configured. # [当保护模式已经打开了，并且: # 1) 服务器没有使用“bind”指令显示绑定到一组地址上。 # 2) 没有配置密码。] # The server only accepts connections from clients connecting from the # IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain # sockets. # [服务器就只会接受来自IPv4和IPv6环回地址127.0.0.1和::1以及Unix域套接字的客户端连接。] # By default protected mode is enabled. You should disable it only if # you are sure you want clients from other hosts to connect to Redis # even if no authentication is configured, nor a specific set of interfaces # are explicitly listed using the "bind" directive. # [默认情况下，保护模式是开启的。你应该仅在下列情况下禁用它: # 你确定希望来自其他主机的客户端连接到Redis， # 即使未配置任何身份验证，也没有使用“bind”指令明确列出一组特定的接口] protected-mode yes # Accept connections on the specified port, default is 6379 (IANA #815344). # If port 0 is specified Redis will not listen on a TCP socket. # [接受指定端口上的连接，默认为6379.] # [如果指定了端口0，redis将不会侦听tcp套接字.] port 6379 # TCP listen() backlog. # # In high requests-per-second environments you need an high backlog in order # to avoid slow clients connections issues. Note that the Linux kernel # will silently truncate it to the value of /proc/sys/net/core/somaxconn so # make sure to raise both the value of somaxconn and tcp_max_syn_backlog # in order to get the desired effect. # [在每秒高请求的环境中，你需要较高的backlog以避免缓慢的客户端连接问题。 # 注意，Linux内核会默认将其缩短至/proc/sys/net/core/somaxconn的值， # 因此请确保同时提高somaxconn和tcp_max_syn_backlog的值以获得所需的效果。] tcp-backlog 511 # Unix socket. # # Specify the path for the Unix socket that will be used to listen for # incoming connections. There is no default, so Redis will not listen # on a unix socket when not specified. # [指定将用于侦听传入连接的Unix套接字的路径。 # 没有默认值，因此Redis在未指定时不会侦听unix套接字。] # unixsocket /tmp/redis.sock # unixsocketperm 700 # Close the connection after a client is idle for N seconds (0 to disable) # [客户端空闲N秒后关闭连接（0表示禁用）] timeout 0 # TCP keepalive. # # If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence # of communication. This is useful for two reasons: # # 1) Detect dead peers. # 2) Take the connection alive from the point of view of network # equipment in the middle. # # On Linux, the specified value (in seconds) is the period used to send ACKs. # Note that to close the connection the double of the time is needed. # On other kernels the period depends on the kernel configuration. # # A reasonable value for this option is 300 seconds, which is the new # Redis default starting with Redis 3.2.1. tcp-keepalive 300