1.1. Install Redis dependencies
Redis is written based on C language, so you first need to install the gcc dependencies required by Redis:
yum install -y gcc tcl
1.2. Upload the installation package and decompress it
For example, Kege put it in the /usr/local/src directory:
unzip:
tar -xzf redis-6.2.6.tar.gz
After decompression:
Enter the redis directory:
cd redis-6.2.6
Run the compile command:
make && make install
If there are no errors, the installation should be successful.
The default installation path is in /usr/local/binthe directory :
This directory is configured as an environment variable by default, so these commands can be run from any directory. in:
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redis-cli: is the command line client provided by redis
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redis-server: is the redis server startup script
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redis-sentinel: is the redis sentinel startup script
1.3. Startup
There are many ways to start redis, for example:
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start by default
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Specify the configuration to start
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boot up
1.3.1. Start by default
After the installation is complete, enter the redis-server command in any directory to start Redis:
redis-server
As shown in the picture:
This kind of startup belongs to 前台启动, it will block the entire session window, and CTRL + CRedis will stop when the window is closed or pressed. Not recommended.
1.3.2. Specified configuration startup
If you want Redis to 后台start with mode, you must modify the Redis configuration file, which is under the redis installation package we decompressed earlier ( /usr/local/src/redis-6.2.6), and the name is redis.conf:
First check whether it is currently in the installation directory of Redis:
Modify redis.conf
Let's make a backup of this configuration file first:
cp redis.conf redis.conf.bck
Then modify some configurations in the redis.conf file
# The address allowed to be accessed, the default is 127.0.0.1, which will result in only local access. If you change it to 0.0.0.0, you can access it from any IP. Do not set it to 0.0.0.0 in the production environment. bind 0.0.0.0 # Daemon process, after changing it to yes, it can run in the background daemonize yes # Password, you must enter the password to access Redis after setting requirepass 123321
Other common configurations of Redis:
# Listening port port 6379 # Working directory, the default is the current directory, that is, the command when running redis-server, logs, persistence and other files will be saved in this directory dir. # The number of databases, set to 1, means only 1 is used There are 16 libraries by default, numbered 0~15 databases 1 # Set the maximum memory maxmemory that redis can use 512mb # Log file, the default is empty, no log is recorded, you can specify the log file name logfile "redis.log"
Start Redis:
# Enter the redis installation directory cd /usr/local/src/redis-6.2.6 # Start redis-server redis.conf
Out of service:
# Use redis-cli to execute the shutdown command to stop the Redis service, #Because the password was configured before, you need to specify the password through -u redis-cli -u 123321 shutdown
1.3.3. Boot up automatically
We can also implement boot self-starting through configuration.
First, create a new system service file:
vi /etc/systemd/system/redis.service
The content is as follows:
[Unit] Description=redis-server After=network.target [Service] Type=forking ExecStart=/usr/local/bin/redis-server /usr/local/src/redis-6.2.6/redis.conf PrivateTmp=true [Install] WantedBy=multi-user.target
Then reload the system service:
systemctl daemon-reload
Now, we can use the following set of commands to operate redis:
# Start systemctl start redis # Stop systemctl stop redis # Restart systemctl restart redis # View status systemctl status redis
Execute the following command to make redis boot up automatically:
systemctl enable redis