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There are many versions of redis, the latest version of redis-3.2.3. The installation procedure is the same as that of the previous version. The following are the installation steps:

1. First you need to download the tar installation file

Download address: http://redis.io/

Download version: redis-3.2.3.tar.gz

2. Extract the installation package

Tar-xzvf redis-3.2.3.tar.gz

Cd redis-3.2.3.tar.gz

Make

Make test

Cd src/

Make install

3. Parameter introduction:

After the make install command is executed, the executable files, redis-server, redis-cli, redis-benchmark, redis-check-aof, and redis-check-dump, are generated in the / usr/local/bin directory. Their functions are as follows:

Daemon launcher for redis-server:Redis server

Redis-cli:Redis command line operation tool. You can also use telnet to operate according to its plain text protocol

Redis-benchmark:Redis performance testing tool to test the read and write performance of Redis on the current system

Redis-check-aof: data repair

Redis-check-dump: check the export utility

4. It is convenient for future maintenance and management to migrate the above important files to the specified path

Mkdir-p / usr/local/redis/bin

Mkdir-p / usr/local/redis/etc

Cp mkreleasehdr.sh redis-benchmark redis-check-aof redis-cli redis-server / usr/local/redis/bin/

Cp redis.conf / usr/local/redis/etc/redis.conf

Redis.conf is an important configuration file for redis

5. Important parameters of redis.conf configuration file

Daemonize: whether to run in background daemon mode

Pidfile:pid file location

Port: the port number on which to listen

Timeout: request timeout

Loglevel:log information level

Logfile:log file location

Databases: number of databases opened

Save * *: how often the snapshot is saved. The first * indicates how long it takes, and the second * indicates how many writes are performed. The snapshot is automatically saved when a certain number of writes are performed within a certain period of time. Multiple conditions can be set.

Rdbcompression: whether to use compression

Dbfilename: data snapshot file name (file name only, not directory)

Dir: the directory where the data snapshot is saved (this is the directory)

Appendonly: whether or not to enable appendonlylog, each write operation will record a log, which will improve the anti-risk ability of the data, but affect the efficiency.

How to synchronize appendfsync:appendonlylog to disk (three options: forcing fsync to be called every time you write, enabling fsync once per second, and not calling fsync to wait for the system to synchronize itself)

A password is required when requirepass:redis-cli logs in

6. Program startup

. / redis-server / usr/local/redis/etc/redis.conf

7. Check whether the startup is successful

Ps-ef | grep redis

8. Master-slave configuration

The master-slave configuration of redis is very simple. You only need to modify two parameters of the configuration file.

Slaveof 192.168.127.121 6379 specifies the IP address and port of master

Authentication password for masterauth 12345678 master

After the modification is completed, restart redis.

PS: after the master-slave configuration is completed, master_link_status:down down for a long time after restart

Solution:

Modify redis master node configuration file bind 0.0.0.0

Restart master.

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