aw / redis-failover

Basic failover for local Redis instances with Keepalived

WARNING: DEPRECATED

I don't use this anymore, and don't plan on maintaining it. Please use at your own risk.

Usage Options:

• -m promote the redis-server to MASTER
• -s promote the redis-server to SLAVE
• -k start the redis-server and promote it to MASTER

Tested:

• Redis 2.2.12
• Keepalived 1.1.20

Redis Setup:

useradd -m -U redis
chmod 750 /home/redis
cd /home/redis
sudo -u redis git clone https://github.com/antirez/redis.git redis.git
cd redis.git
git checkout 2.2.12
sudo make

Configurations:

• MASTER/SLAVE config: /home/redis/redis-mdb.conf (runs on port 6379)

How it works:

• Keepalived runs on the Redis MASTER and SLAVE servers
• The Redis MASTER binds the IP 172.16.0.180
• The Redis SLAVE connects to a Master server which has the IP 172.16.0.180
• Keepalived handles checking and runs a script if a server is online or offline
• This script will handle starting Redis promoting it to MASTER or SLAVE

Note:

This has NOT been tested in a production environment, use at your own risk

Copyright

Copyright (c) 2011 Alex Williams. See LICENSE for details.