Open sabahsawor opened 7 months ago
Hi, Galera itself does not have this capability, but you can use any Galera cluster node as a primary for native MySQL asynchronous replication.
To be able to seamlessly switch master nodes make sure to set
log_replica_updates=1
wsrep_sync_server_uuid=1
Hi, Galera itself does not have this capability, but you can use any Galera cluster node as a primary for native MySQL asynchronous replication.
To be able to seamlessly switch master nodes make sure to set
log_replica_updates=1 wsrep_sync_server_uuid=1
Thank you Alexey for your answer,
So your idea is to add 4 nodes (3 in AWS cloud servers and one in premise server) to Galera cluster and set the one in premise with the setting you provided?
@sabahsawor , hello. You should you use this parameters at all galera nodes.
log_replica_updates
is required for binlog that required for classic async MySQL replication.
wsrep_sync_server_uuid
- about this option you could read here https://galeracluster.com/library/documentation/mysql-wsrep-options.html
Node that will receive async replication will not be galera cluster node, it'll be just standalone MySQL that will receive data by classic replication mechanism.
Some links:
https://severalnines.com/blog/how-setup-asynchronous-replication-between-mariadb-galera-clusters/
Another variant is that your on prem node will be part of the cluster but with another segment
- https://severalnines.com/blog/deploying-hybrid-infrastructure-environment-percona-xtradb-cluster/
https://galeracluster.com/library/documentation/galera-parameters.html#gmcast-segment
Replication will work by the same galera mechanism (wsrep) but with some location optimisations.
This is not an issue question, but I'm not sure where I have to post this question.
I want to deploy both Synchronous vs. Asynchronous on the same time, basically I need to setup a 3 of mysql nodes as a cluster on AWS (Synchronous replication) and one node in our on premise server with Asynchronous replication.
I'm not sure if Galera have this capability