Install Redis on Ubuntu 20.04|18.04 / Debian 10|9
source link: https://computingforgeeks.com/how-to-install-redis-on-ubuntu-debian/
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In this tutorial, I’ll walk you through the steps to install Redis Server on Ubuntu 20.04|18.04 / Debian 10|9. Redis is an Open Source in-memory data structure store. Redis can be used as a database server, as a message broker or for caching data in memory for faster retrieval.
Redis supported data structures are:
- Hashes
- sets with range queries
- Strings
- sorted lists
- Hyperloglogs
- Bitmaps
- Geospatial indexes e.t.c
For CentOS 8 / CentOS 7 / Fedora use:
How to Install Latest Redis on CentOS 7
How to Install Redis on Fedora
Install and Configure Redis Server on RHEL 8 / CentOS 8
Install Redis on Ubuntu 20.04|18.04 / Debian 10|9
In this section, we will look at how to install the latest release of Redis on Ubuntu 18.04 / Debian 9. You can check the version of Redis Server available on your Ubuntu 20.04|18.04 / Debian 10|9 using the following command.
$ sudo apt policy redis-server redis-server: Installed: (none) Candidate: 5:5.0.7-2 500 Version table: 5:5.0.7-2 500 500 http://mirrors.digitalocean.com/ubuntu focal/universe amd64 Packages
Step 1: Update your server Package list
Ensure your system is updated before installing Redis
sudo apt update
Step 2: Install Redis on Ubuntu 20.04|18.04 / Debian 10|9
Redis Server package is available on the Ubuntu/Debian upstream repository. After updating your system, install Redis by running the following commands in your terminal.
sudo apt -y install redis-server
If you would like to have a more recent version of Redis Server, you may opt to use PPA repository maintained by Redis Development.
# Ubuntu only
sudo add-apt-repository ppa:redislabs/redis
sudo apt-get update
sudo apt-get install redis
If you don’t have add-apt-repository
command on your system, check our previous guide:
How to Install add-apt-repository on Debian / Ubuntu
Confirm Redis Server version:
$ redis-server -v Redis server v=6.2.1 sha=00000000:0 malloc=jemalloc-5.1.0 bits=64 build=81a84d60f8ac9371
You can also install redis server from snap:
sudo snap install redis
Step 3: Start Redis Service on Ubuntu 20.04|18.04 / Debian 10|9
By default, Redis service should be started after installation. But you can start and enable the service to start on boot manually using the command:
sudo systemctl enable --now redis-server
Step 4: Enable network Listen for Redis Service
For network clients to connect to your Redis server, it needs the service to listen on a network IP Address.
Open the file /etc/redis/redis.conf
with your favorite text editor
sudo vim /etc/redis/redis.conf
Then change line bind 127.0.0.1
to below:
bind 0.0.0.0
Restart redis service after making the change:
sudo systemctl restart redis-server
Configure Redis Authentication – (Optional but recommended)
Configure Redis Authentication for clients to require AUTH <PASSWORD>
before processing any other commands.
requirepass <AuthPassword>
Example:
requirepass oobaiY8BA
Set Persistent Store for Recovery
Set persistence mode by changing the appendonly
value to yes
appendonly yes
appendfilename "appendonly.aof"
Restart redis service after making the changes
sudo systemctl restart redis-server
Check redis service status:
$ systemctl status redis-server * redis-server.service - Advanced key-value store Loaded: loaded (/lib/systemd/system/redis-server.service; enabled; vendor preset: enabled) Active: active (running) since Sun 2018-12-23 03:42:41 PST; 1s ago Docs: http://redis.io/documentation, man:redis-server(1) Process: 10444 ExecStop=/bin/kill -s TERM $MAINPID (code=exited, status=0/SUCCESS) Process: 10447 ExecStart=/usr/bin/redis-server /etc/redis/redis.conf (code=exited, status=0/SUCCESS) Main PID: 10469 (redis-server) Tasks: 4 (limit: 2319) CGroup: /system.slice/redis-server.service `-10469 /usr/bin/redis-server 0.0.0.0:6379 Dec 23 03:42:40 ubuntu-01 systemd[1]: Starting Advanced key-value store... Dec 23 03:42:41 ubuntu-01 systemd[1]: Started Advanced key-value store.
You can view the port and IP used by Redis service using the ss
command:
$ ss -tunelp | grep 6379 tcp LISTEN 0 128 0.0.0.0:6379 0.0.0.0:* uid:112 ino:52652 sk:40 <->
If you have an active firewall service, allow port 6379
sudo ufw allow 6379/tcp
Step 5: Test connection to Redis Server
Confirm that you can connect to redis locally:
$ redis-cli
127.0.0.1:6379>
Test authenticate:
127.0.0.1:6379> AUTH <AuthPassword> OK
You should receive OK
in the output. If you input a wrong password, Authentication should fail:
127.0.0.1:6379> AUTH WrongPassword (error) ERR invalid password
Check redis information.
127.0.0.1:6379> INFO
This will output a long list of data. You can limit the output by passing Section as an argument. E.g.
127.0.0.1:6379> INFO Server # Server Server redis_version:5.0.3 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:45d60903d31a0894 redis_mode:standalone os:Linux 4.15.0-38-generic x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:atomic-builtin gcc_version:7.3.0 process_id:10469 run_id:1630ad8b0bb9b8b8f811aac4aa7cae1fee51951d tcp_port:6379 uptime_in_seconds:290 uptime_in_days:0 hz:10 configured_hz:10 lru_clock:2061779 executable:/usr/bin/redis-server config_file:/etc/redis/redis.conf
Step 6: Perform Redis Benchmarking
Run the benchmark with 15
parallel connections, for a total of 10k
requests, against local redis to test its performance.
$ redis-benchmark -h 127.0.0.1 -p 6379 -n 10000 -c 15 # Sample output ................................................
====== LRANGE_500 (first 450 elements) ======
10000 requests completed in 0.62 seconds
15 parallel clients
3 bytes payload
keep alive: 1
99.66% <= 1 milliseconds
100.00% <= 1 milliseconds
16129.03 requests per second
====== LRANGE_600 (first 600 elements) ======
10000 requests completed in 0.81 seconds
15 parallel clients
3 bytes payload
keep alive: 1
99.66% <= 1 milliseconds
99.93% <= 2 milliseconds
99.97% <= 3 milliseconds
100.00% <= 3 milliseconds
12345.68 requests per second
====== MSET (10 keys) ======
10000 requests completed in 0.09 seconds
15 parallel clients
3 bytes payload
keep alive: 1
100.00% <= 0 milliseconds
111111.11 requests per second
For more options and examples, use:
$ redis-benchmark --help
You have successfully installed Redis on Ubuntu 20.04|18.04 / Debian 10|9 Server or Workstation.
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