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Next we will need to configure the servers to run as a cluster
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redis-cli --cluster create redis01:6379 redis02:6379 redis03:6379
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 * https://www.tecmint.com/setup-redis-cluster-in-centos-8/

DISCLAIMER THIS ONLY WORKS IN BUSTER INCOMPLETE DO NOT USE

Redis

Redis is an in memory data structure storage. It will be used to share PHP-sessions between the apache servers. To guarantee a robust deployment three redis servers will be configured.

  • 192.168.1.59 redis01
  • 192.168.1.60 redis02
  • 192.168.1.61 redis03

Software

apt-get install redis-server

Configuration

Redis Server

Change the contents of the redis configuration file in /etc/redis/redis.conf.

Add the IP-address for each of the servers. Each of the redis servers needs to listen on its own IP-address.

bind 127.0.0.1 192.168.1.58

Enable redis to listen on the network, instead of only listening on the loopback device.

protected-mode no

Redis stores its data in memory only, hence its speed. To make sure redis does not loose its state, in case of a hardware failure, this will enable it to store the state as it changes in a file on disk.

appendonly yes

Activate redis cluster features

cluster-enabled yes
cluster-config-file nodes-6379.conf
cluster-node-timeout 15000

Restart the redis server on all hosts.

service redis-server restart

Next we will need to configure the servers to run as a cluster

redis-cli --cluster create redis01:6379 redis02:6379 redis03:6379

References

None: Redis (last edited 2022-01-03 22:09:21 by Kristian Kallenberg)