how to flip master - node

[Gambix]

Hi all,

I had a cluster with two nodes :
mx1 - master
mx2 - slave node

I had to reinstall and move mx1 ... so I did this:
turned off mx1
promoted mx2 to master
reinstalled mx1
added mx1 to cluster (as node)
I promoted mx1 to master

now they both pretend to be masters

they both report as master and the other as node ...

How do I fix this ?

 

[Gambix]

I saw in this thread

Post in thread 'I cannot rejoin a node to the cluster'

Jul 5, 2021

If possible simply setup your node fresh and then join it to the cluster - this is the cleanest solution.

Else (without trying it explicitly) try removing /etc/pmg/cluster.conf from the node you try to re-add to the cluster .... this could work

I hope this helps!

• Stoiko Ivanov

a suggestion to delete /etc/pmg/cluster.conf ... I did, restarted the node, and the cluster was gone, so I simply rejoined it as node to my intended master.
I think the utility pmgcm needs an additional feature : cluster-delete command.