How To Install ruby-unicorn-worker-killer on Ubuntu 18.04
Introduction
In this tutorial we learn how to install ruby-unicorn-worker-killer on Ubuntu 18.04.
What is ruby-unicorn-worker-killer
ruby-unicorn-worker-killer is:
unicorn-worker-killer gem provides automatic restart of Unicorn workers based on
- max number of requests, and
- process memory size (RSS) without affecting any requests.
This will greatly improves site’s stability by avoiding unexpected memory exhaustion at the application nodes.
There are three methods to install ruby-unicorn-worker-killer on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ruby-unicorn-worker-killer Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ruby-unicorn-worker-killer using apt-get by running the following command:
sudo apt-get -y install ruby-unicorn-worker-killer
Install ruby-unicorn-worker-killer Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ruby-unicorn-worker-killer using apt by running the following command:
sudo apt -y install ruby-unicorn-worker-killer
Install ruby-unicorn-worker-killer Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install ruby-unicorn-worker-killer using aptitude by running the following command:
sudo aptitude -y install ruby-unicorn-worker-killer
How To Uninstall ruby-unicorn-worker-killer on Ubuntu 18.04
To uninstall only the ruby-unicorn-worker-killer package we can use the following command:
sudo apt-get remove ruby-unicorn-worker-killer
Uninstall ruby-unicorn-worker-killer And Its Dependencies
To uninstall ruby-unicorn-worker-killer and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove ruby-unicorn-worker-killer
Remove ruby-unicorn-worker-killer Configurations and Data
To remove ruby-unicorn-worker-killer configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge ruby-unicorn-worker-killer
Remove ruby-unicorn-worker-killer configuration, data, and all of its dependencies
We can use the following command to remove ruby-unicorn-worker-killer configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ruby-unicorn-worker-killer
References
Summary
In this tutorial we learn how to install ruby-unicorn-worker-killer package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
