Once this server is installed on your system, you can conveniently use it as a powerful database.
You can easily see that you will be able to install Redis on your Ubuntu 20.04 system in no time if you follow this tutorial. Now if you want to uninstall the Redis service from your system, you can do so by running the following command: $ sudo apt-get purge -autoremove redis-server The status “active (running)” in the output shown in the figure below indicates that the Redis service has been successfully activated on our Ubuntu system. Step 4: check the status of the Redis service:įinally, you can also confirm the status of the Redis service by running the following command: $ sudo systemctl status rvice If the activation of the Redis service was successful and error-free, you will see an output on your terminal similar to the figure below: Hence, you have to activate it manually with the following command: $ sudo systemctl enable rvice However, the Redis service is not automatically activated after it is installed.
When the Redis server is installed on your system, you will see the output on your terminal similar to the one shown in the following figure: To install Redis on an Ubuntu system, the following command must be executed: $ sudo apt install redis-server If our system has been successfully updated, we can easily install Redis on it.
We’ll start with an Ubuntu system update with the command shown below: $ sudo apt-get update Redis can be installed and activated on an Ubuntu system using the following steps: Step # 1: start with a system update: Today’s goal is also to learn how we can install the Redis server on our Ubuntu 20.04. It is very popular with Linux users as it is quite easy to install and use on any Linux based system. If required one can make redis stop script like this (adapted default redis 5.0 init.Redis is a well-known open source data structure store that stores data in memory and is widely used as a database. If it is set or could be set, instead of searching for process id (pid) by using ps + grep something like this could be used: And the purge option removes the configuration and other Redis related data files. Here -auto-remove option removes the Redis server package and its dependencies. So in such cases, we uninstall Redis using the command, apt-get purge -auto-remove redis-server. # is used even if not specified, defaulting to "/var/run/redis.pid". The Ubuntu server install packages with apt-get. When the server is daemonized, the pid file # When the server runs non daemonized, no pid file is created if none is # If a pid file is specified, Redis writes it where specified at startup etc/nf - check redis source code), for example: Redis has configuration parameter pidfile (e.g. That was a headache but hopefully this saves someone a little time. Once I realized that, I logged in using root, reran the restart command on the redis ( service redis restart) and everything worked. But the problem was I was executing the restart as my deploy user which the permissions above are r-x, not allowing my user to write to the PIDFile directory. If you need a refresher on linux permissions, check this out. I was trying to restart the service logged in as deploy but the directory permissions were listed asĭrwxrwsr-x 2 redis redis 40 Jul 20 17:37 redis You specify the location of where this file is inĪnd it should have a section that looks something like this:ĮxecStart=/usr/bin/redis-server /etc/redis/nfĬheck the location and permissions of the PIDFile directory (in my case, '/run/redis'). One thing to check if the redis commands are not working for you is if your redis-server.pid is actually being created.