Setup Redis on AWS

This setup will help you in setting up redis on AWS. Follow these steps

1. Sign up for an Amazon Web Services account.
2. Set up an EC2 instance (10 minutes). Be sure to select the Amazon Linux.
3. Leave the AWS Dashboard open in your browser.
4. Use SSH to connect to the server.

Table of Contents

You should now be at the Linux command line of your EC2 instance, and ready to begin installing Redis.

First, we will update server and install the toolchain.

sudo yum -y update
sudo yum -y install gcc make

Download and install Redis 3.2.

Double check Redis for the latest link. If you get an error, use command “ls” to check the file name.

cd /usr/local/src
sudo wget http://download.redis.io/releases/redis-3.2.0.tar.gz
sudo tar xzf redis-3.2.0.tar.gz
sudo rm -f 3.2.0.tar.gz

Recompile Redis

cd redis-3.2.0
sudo make distclean
sudo make

Install tcl and Test Redis Installation

sudo yum install -y tcl
sudo make test

Make directories & copy files

sudo mkdir -p /etc/redis /var/lib/redis /var/redis/6379
sudo cp src/redis-server src/redis-cli /usr/local/bin
sudo cp redis.conf /etc/redis/6379.conf

Configure Redis

You will need some vim basics for this part.
pressing “:set number” will show the line numbers
pressing “i” will allow you to insert text (edit)
pressing “esc” will stop inserting and allow other vim commands
pressing “:wq” followed by enter will write then quit vim

Open the config file

sudo vi /etc/redis/6379.conf

Edit the file, using vim, and confirm the options are set as shown. Line numbers may be shown in the bottom right hand side of the vim window. Don’t include the line numbers as you edit!

bind 127.0.0.1 //line 61
daemonize yes //line 127
logfile “/var/log/redis_6379.log” //line 162
dir /var/redis/6379 //line 246

Download and install the init script

sudo wget https://raw.githubusercontent.com/saxenap/install-redis-amazon-linux-centos/master/redis-server
sudo mv redis-server /etc/init.d
sudo chmod 755 /etc/init.d/redis-server

Open the Redis server init script with vim

sudo vi /etc/init.d/redis-server

Edit the config file reference to match

REDIS_CONF_FILE=”/etc/redis/6379.conf” //line 26

Auto-enable and start the Redis server

sudo chkconfig –add redis-server
sudo chkconfig –level 345 redis-server on
sudo service redis-server start

Open the system controller config file with vim.

sudo vi /etc/systctl.conf

Add the following lines to ensure background saves and fix low-memory issue. This is a new file.

# ensure redis background save issue
vm.overcommit_memory = 1
systctl vm.overcommit_memory=1

Test Redis Server

redis-cli ping

The response should be PONG. If not, something went wrong.

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