How to ensure secondary node pushes updates to primary before I shut down

Hi all

I have a 3 node percona 5.6 cluster which needs to be shutdown on odd occasion.

node1 - bootstrap

I ran into a issue where, when I shutdown the nodes. Node 2,3 would not startup as they were ahead of the primary node1.

My question how can I ensure that all updates are pushed to primary node1 before I shutdown the nodes, is there a command I can run to push updates?

Thanks in advance :slight_smile: