Redis.conf details

Familiar with basic configuration

Redis The configuration file is located in Redis Installation directory , The file named redis.conf

config get * # Get all the configuration

The address of the configuration file ：

We usually , One copy will be processed separately for operation . To ensure the security of the initial file

Units Company  

1、 Configure size units , Some basic units of measurement are defined at the beginning , Only support bytes, I won't support it bit

2、 Yes Case write Insensitivity

includes contain

 

and PHP The configuration file is similar. You can use the includes contain ,redis.conf Can be used as a master file , Other files can be included

network The network configuration  

bind 127.0.0.1   # binding ip

protected-mode yes # Protected mode

port 6379         # Port settings

Universal general

daemonize yes          # Run in daemon mode , The default is no  We need to turn it on ourselves yes

pidfile /www/server/redis/redis.pid        # If it runs in the background mode , We need to specify one pids file

# journal

# 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) Generating environment
# warning (only very important / critical messages are logged)
loglevel notice

logfile "/www/server/redis/redis.log"  # Location name of the log

databases 16        # Number of databases . The default is 16 A database

always-show-logo yes        # Yes, Fu always shows logo

snapshot

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

reids Is a memory database , If there is no persistence , So the data power failure and loss

# If 900 Inside If there is at least one 1 key It's been modified , We have done persistence operation

save 900 1

# If 300 Inside If there is at least one 10 key It's been modified , We have done persistence operation

save 300 10

# If 60 Inside If there is at least one 10000 key It's been modified , We have done persistence operation

save 60 10000

# We'll learn about persistence later , Will define the test itself
stop-writes-on-bgsave-error yes        # Persistence if something goes wrong , Whether you need to continue working

rdbcompression yes                           # Is it compressed? rdb file , It needs to be consumed cpu Resources for

rdbchecksum yes                     # preservation rdb When you file , Check for errors

dir /www/server/redis/               #rdb The directory where the files are saved

REPLICATION Copy We'll talk about master-slave replication later, and then explain to you ！ Let's skip here ！

SECURITY Security

You can set it up here reids Password . The default is no password

127.0.0.1:6379> config get requirepass        # obtain redis Password
1) "requirepass"
2) ""
127.0.0.1:6379> config set requirepass "123456"            # Set up redis Password
OK

127.0.0.1:6379> config get requirepass                        # Test sending requires verification
(error) NOAUTH Authentication required.

127.0.0.1:6379> auth 123456                        # verification
OK
127.0.0.1:6379> config get requirepass                
1) "requirepass"
2) "123456"
 

Limit CLIENTS

maxclients 10000 # Settings can be connected to redis The maximum number of client connections

maxmemory <bytes> # redis The maximum memory capacity of the configuration

maxmemory-policy noeviction # maxmemory-policy Processing strategy when the memory reaches the upper limit

#volatile-lru： utilize LRU Algorithm to remove the set expiration time key.

#volatile-random： Randomly remove the... With expiration time set key.

#volatile-ttl： Remove items that are about to expire key, Delete... Based on the latest expiration time （ supplemented TTL）

#allkeys-lru： utilize LRU The algorithm removes any key.

#allkeys-random： Remove any... At random key.

#noeviction： Do not remove any key, It just returns a write error .

APPEND ONLY Pattern   aof

appendonly no               # Not on by default aof Mode , The default is to use rbd Way persistent , In most cases ,rdb It's enough

appendfilename "appendonly.aof"        # The name of the persistent file

# appendfsync always                # Every time you make a change, it will sync  Consumption performance
appendfsync everysec                # Execute once per 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 , Fastest data

Specific configuration , We will explain it in detail in the persistence article