Install 1st Redis instance
By installing the first Redis instance, you can use the configuration as template for your 2nd one.
yum install redis
service redis start
This redis instance listens on localhost:6379
by default.
Install 2nd Redis instance
create a new working directory
The default redis instance uses /var/lib/redis
as its working directory, dumped memory content is saved under this directory with name dump.rdb
if you did not change it manually.
to avoid runtime conflict, we need to create a new working directory
mkdir -p /var/lib/redis2/
chown redis /var/lib/redis2/
chgrp redis /var/lib/redis2/
generate configurations
Create a new configuration file by copying /etc/redis.conf
cp /etc/redis.conf /etc/redis2.conf
Edit following settings to avoid conflicts
logfile "/var/log/redis/redis2.log"
dir "/var/lib/redis2"
pidfile "/var/run/redis/redis2.pid"
port 6380
add startup script
Create service file
cp /usr/lib/systemd/system/redis.service /usr/lib/systemd/system/redis2.service
Modify the settings under Service
section
[Service]
ExecStart=/usr/bin/redis-server /etc/redis2.conf --daemonize no
ExecStop=/usr/bin/redis-shutdown redis2
set to start with boot
systemctl enable redis2
start 2nd redis
service redis2 start
check status
lsof -i:6379
lsof -i:6380