LeeNaveen

How To Install Redis Server In Ubuntu.

2021-12-01T23:17:00.008-08:00

Introduction

Redis is an in-memory key-value store known for its flexibility, performance, and wide language support.

This tutorial is about how to install and configure Redis on Ubuntu Operating system.

Step 1: Installing and Configuring Redis

In order to get the latest version of Redis, we will use apt to install it from the official Ubuntu repositories.

First, update your local apt package cache if you haven’t done so recently:

Then, install Redis by typing:

This will download and install Redis and its dependencies. Following this, there is one important configuration change to make in the Redis configuration file, which was generated automatically during the installation.

Open this file with your preferred text editor:

Inside the file, find the supervised directive. This directive allows you to declare an init system to manage Redis as a service, providing you with more control over its operation. The supervised directive is set to no by default. Since you are running Ubuntu, which uses the systemd init system, change this to systemd:

in file ( /etc/redis/redis.conf )

. . .

# If you run Redis from upstart or systemd, Redis can interact with your
# supervision tree. Options:
#   supervised no      - no supervision interaction
#   supervised upstart - signal upstart by putting Redis into SIGSTOP mode
#   supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET
#   supervised auto    - detect upstart or systemd method based on
#                        UPSTART_JOB or NOTIFY_SOCKET environment variables
# Note: these supervision methods only signal "process is ready."
#       They do not enable continuous liveness pings back to your supervisor.
supervised systemd

. . .

That’s the only change you need to make to the Redis configuration file at this point, so save and close it when you are finished. Then, restart the Redis service to reflect the changes you made to the configuration file:

With that, you’ve installed and configured Redis and it’s running on your machine. Before you begin using it, though, it’s prudent to first check whether Redis is functioning correctly.

Step 2: Testing Redis

As with any newly-installed software, it’s a good idea to ensure that Redis is functioning as expected before making any further changes to its configuration. We will go over a handful of ways to check that Redis is working correctly in this step.

Start by checking that the Redis service is running:

If it is running without any errors, this command will produce output similar to the following:

Output● redis-server.service - Advanced key-value store
   Loaded: loaded (/lib/systemd/system/redis-server.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2018-06-27 18:48:52 UTC; 12s ago
     Docs: http://redis.io/documentation,
           man:redis-server(1)
  Process: 2421 ExecStop=/bin/kill -s TERM $MAINPID (code=exited, status=0/SUCCESS)
  Process: 2424 ExecStart=/usr/bin/redis-server /etc/redis/redis.conf (code=exited, status=0/SUCCESS)
 Main PID: 2445 (redis-server)
    Tasks: 4 (limit: 4704)
   CGroup: /system.slice/redis-server.service
           └─2445 /usr/bin/redis-server 127.0.0.1:6379
. . .

Here, you can see that Redis is running and is already enabled, meaning that it is set to start up every time the server boots.

To test that Redis is functioning correctly, connect to the server using the command-line client:

In the prompt that follows, test connectivity with the ping command:

OutputPONG

This output confirms that the server connection is still alive. Next, check that you’re able to set keys by running:

OutputOK

Retrieve the value by typing:

Assuming everything is working, you will be able to retrieve the value you stored:

Output"It's working!"

After confirming that you can fetch the value, exit the Redis prompt to get back to the shell:

As a final test, we will check whether Redis is able to persist data even after it’s been stopped or restarted. To do this, first restart the Redis instance:

Then connect with the command-line client once again and confirm that your test value is still available:

The value of your key should still be accessible:

Output"It's working!"

Exit out into the shell again when you are finished:

With that, your Redis installation is fully operational and ready for you to use.

That's it for the Tutorial Enjoy...!

DesignModo

2021-07-26T20:13:00.006-07:00

DesignModo

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Humaaan Illustration for Designing

2021-07-02T08:00:00.007-07:00

Humaaans Illustration

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speed up your coding using snippets

2021-07-02T07:55:00.001-07:00

HTML Snippets

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Get Rid of Ninja slider Trail version text from Website.

2021-06-06T01:39:00.005-07:00

Get Rid of Ninja slider Trail version text from Website.

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LeeNaveen

How To Install Redis Server In Ubuntu.

Introduction

Step 1: Installing and Configuring Redis

Step 2: Testing Redis

DesignModo

DesignModo

Grow Business With Their Website And Design Tools For Free.

They are providing three Major services with free and paid.1. Postcards2. Slides3. Startup

Humaaan Illustration for Designing

speed up your coding using snippets

HTML Snippets

Html in visual studio code

Intellisense

examples of code

Get Rid of Ninja slider Trail version text from Website.

Get Rid of Ninja slider Trail version text from Website.

They are providing three Major services with free and paid.
1. Postcards
2. Slides
3. Startup