syncache-drb command not found

In this troubleshooting guide we learn how to fix syncache-drb command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

syncache-drb: command not found

or when using sudo you get the following error message

sudo: syncache-drb: command not found

In Ubuntu syncache-drb is provided by syncache package.

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.

To fix this problem, we can install more using the command below.

sudo apt-get -y install syncache

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install syncache.

sudo apt -y install syncache

Or if you have aptitude installed you can use the following command.

sudo aptitude install syncache

In this tutorial we learn how to fix syncache-drb command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.