常用¶

约定:

# 1k => 1000 bytes
# 1kb => 1024 bytes
# 1m => 1000000 bytes
# 1mb => 1024*1024 bytes
# 1g => 1000000000 bytes
# 1gb => 1024*1024*1024 bytes

主要配置参数:

daemonize
 是否以后台daemon方式运行(yes/no)

pidfile
 pid文件位置

port
 监听的端口号(default 6379)

timeout
 请求超时时间(Close the connection after a client is idle for N seconds (0 to disable))

loglevel
 log信息级别:
     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)

logfile
 log文件位置:
     stdout #往控制台写日志, 如果使用daemonize则往/dev/null写
     /var/redis/redis.log

databases
 开启数据库的数量(默认使用数据库0, 你可以使用 ``SELECT <dbid>`` 命令选择指定数据库,其中<dbid>是从0到你設定的值)

save <seconds> <changes>
 保存快照的频率,在一定时间内执行一定数量的写操作时,自动保存快照.可设置多个条件::

     save 900 1       # 900 sec (15 min)内至少1个key改变
     save 300 10      # 300 sec (5 min)内至少10个key改变
     save 60 10000    # 60 sec内至少10000个key改变
     # 注意: 如不想存入磁盘把所有的save注释即可

rdbcompression
 可往磁盘保存数据时是否使用LZF压缩

dbfilename
 数据快照文件名(文件名,不包括目录)

dir
 数据快照的保存目录(目录)

appendonly
 是否开启appendonlylog，开启的话每次写操作会记一条log，这会提高数据抗风险能力，但影响效率

appendfsync
 appendonlylog如何同步到磁盘（三个选项，分别是每次写都强制调用fsync、每秒启用一次fsync、不调用fsync等待系统自己同步）

复制配置参数:

slaveof <masterip> <masterport>
 指定master的ip与port(以下是解释，没大看明白):
     # Master-Slave replication. Use slaveof to make a Redis instance a copy of
     # another Redis server. Note that the configuration is local to the slave
     # so for example it is possible to configure the slave to save the DB with a
     # different interval, or to listen to another port, and so on.

masterauth <master-password>
 指定master的密码(如果有的话, 密码的設定是通过requirepass)

slave-serve-stale-data
 当slave与master失去连接时有两种处理方法:
     * yes: 让连接slave的客户端继续使用可能过时的数据(默认)
     * no: 给所有客户端返回 ``SYNC with master in progress`` 错误(除了 ``INFO`` and ``SLAVEOF`` 两个命令)

repl-ping-slave-period
 Slaves send PINGs to server间隔时间(默认10s).

repl-timeout
 The following option sets a timeout for both Bulk transfer I/O timeout and master data or ping response timeout(默认60s).
 注意: 确保这个值比 ``repl-ping-slave-period`` 設定的值大(原因自己想想)

slave-priority
     The slave priority is an integer number published by Redis in the INFO output.
     # It is used by Redis Sentinel in order to select a slave to promote into a
     # master if the master is no longer working correctly.
     #
     # A slave with a low priority number is considered better for promotion, so
     # for instance if there are three slaves with priority 10, 100, 25 Sentinel will
     # pick the one wtih priority 10, that is the lowest.
     #
     # However a special priority of 0 marks the slave as not able to perform the
     # role of master, so a slave with priority of 0 will never be selected by
     # Redis Sentinel for promotion.
     #
     # By default the priority is 100.

次要配置参数:

bind
 绑定ip

unixsocket
 指定unix socket的路径

unixsocketperm
 ???

syslog-enabled
 控制是否使用系统日志??(yes/no)

syslog-ident
 redis日志名

syslog-facility
 指定日志facility.(Must be USER or between LOCAL0-LOCAL7)