15_ Redis_ Redis. Conf detailed explanation

Redis To configure

When it starts , Just start with the configuration file !

Company

The configuration file ,units Case insensitive ,redis Commands are not case sensitive

contain

Multiple redis Of conf Combine into one

The network configuration

bind 127.0.0.1 -::1 // Bound port
protected-mode yes // Protected mode
port 6379 // Port settings

Universal ：GENERAL

daemonize yes // Whether to start as a daemon , The default is no, We need to turn it on ourselves yes

pidfile /var/run/redis_6379.pid // If it runs in the background mode , We need to specify one pid file !

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 // The level of logging

logfile “” // The file location name of the log . If it is empty , Default standard output

databases 16 // Number of databases , Default 16 A database

always-show-logo no // Always show logo, Default not to show

snapshot : SNAPSHOTTING

Persistence : Within the specified time , How many operations have been performed , Will be persisted to the file .rdb or .aof

redis Is a memory database , If there is no persistence , If the data is powered off, it will be lost !

// If 3600s Inside , If there is at least one 1 key It's been modified , Let's do persistence
save 3600 1
// If 300s Inside , If there is at least one 100 key It's been modified , Let's do persistence
save 300 100
// If 60s Inside , If there is at least one 10000 key It's been modified , Let's do persistence
save 60 10000

stop-writes-on-bgsave-error yes // Whether the persistence error works properly

rdbcompression yes // Is it compressed? rdb file , Compression will consume CPU resources , Default on

rdbchecksum yes // preservation rdb When you file , Check for errors !

dir ./ // rdb File storage directory , Default to current path

Master slave copy : REPLICATION

Security : SECURITY

redis No password by default ,

Set password with command

Restrict client : CLIENTS

APPEND ONLY Pattern : aof To configure

appendonly no // The default is not on aof Mode , The default is to use rdb Way persistent , In most cases ,rdb Quite enough !

appendfilename “appendonly.aof” // The name of the persistent file

appendfsync always // Every time you make a change, it will sync( Sync ). Consumption performance
appendfsync everysec // Once a second sync, You may lose this 1s The data of !
appendfsync no // Don't execute sync, At this time, the operating system synchronizes its own data , The fastest !