How To Install syncache on Ubuntu 18.04

In this tutorial we learn how to install syncache on Ubuntu 18.04. syncache is Thread-safe time-limited cache for Ruby

Introduction

In this tutorial we learn how to install syncache on Ubuntu 18.04.

What is syncache

syncache is:

SynCache stores cached objects in a Hash that is protected by an advanced two-level locking mechanism which ensures that:

  • Multiple threads can add and fetch objects in parallel.
  • While one thread is working on a cache entry, other threads can access the rest of the cache with no waiting on the global lock, no race conditions nor deadlock or livelock situations.
  • While one thread is performing a long and resource-intensive operation, other threads that request the same data will be put on hold, and as soon as the first thread completes the operation, the result will be returned to all threads.

This package provides SynCache module for Ruby and a DRb server that exports a SynCache::Cache object for use in Ruby programs.

There are three methods to install syncache 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 syncache Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install syncache using apt-get by running the following command:

sudo apt-get -y install syncache

Install syncache Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install syncache using apt by running the following command:

sudo apt -y install syncache

Install syncache 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 syncache using aptitude by running the following command:

sudo aptitude -y install syncache

How To Uninstall syncache on Ubuntu 18.04

To uninstall only the syncache package we can use the following command:

sudo apt-get remove syncache

Uninstall syncache And Its Dependencies

To uninstall syncache and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove syncache

Remove syncache Configurations and Data

To remove syncache configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge syncache

Remove syncache configuration, data, and all of its dependencies

We can use the following command to remove syncache configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge syncache

References

Summary

In this tutorial we learn how to install syncache package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.