When implementing multiple regions/clusters, sitecore documentation states that each cluster must have its own core database.(https://doc.sitecore.com/developers/90/platform-administration-and-architecture/en/clustering-and-geographic-distribution.html)
Each cluster has its own dedicated core database - core databases cannot be replicated and must be managed per cluster
How do you keep core dbs synced? One of the options we are looking at is to publish from CM server. We tested locally by adding core references in configuration files and a publishing target in core db. It seems to work fine at first sight. Is there any danger in publishing from one core to others?