I am testing a MariaDB Galera Cluster set up with only 2 nodes, I have three servers
haproxy, node1 and
node2 . I was able to set it up and it worked fine until testing phase.
There are two types of test that I made:
- The main node fails
- The second node fails
While testing I came across this page which describes the problems.
So I was thinking of setting up garbd on both servers as what the guide said, but I don't think it is working(?)
Here is my garbd config:
group="galera-testing" address="gcomm://10.10.10.16,10.10.10.17" options="gmcast.listen_addr=tcp://0.0.0.0:4444" log="/var/log/garbd.log"
If I run
sudo garbd --cfg /etc/garbd.cnf the logs stop at: Note: I started this on both servers
INFO: (b363d915-923d, 'tcp://0.0.0.0:4444') turning message relay requesting off
And I can't continue using the terminal without killing it.
Now, I'm thinking of two options:
Setting garbd on my HAProxy Server making it act as the arbitrator or
Setting garbd on both nodes (im confused as the guide says to set it on both servers? what??)
Can anyone point me to the right direction? Thanks!
Note: I was able to test Galera Clusters with three nodes before + HAProxy, and it went better than with two nodes. But to satisfy my curiousity, I kinda want to learn this one works too.