After some feedback we received from early adopters or discussions during events like FOSDEM, I realized that there is some misconception about the type of replication that MySQL Group Replication is using. And even experts can be confused as Vadim’s blog post illustrated it.
So, is MySQL Group Replication asynchronous or synchronous ?? … in fact it depends !
The short answer is that GR is asynchronous. The confusion here can be explained by the comparison with Galera that claims to be synchronous or virtually synchronous depending where and who claims it (Synchronous multi-master replication library, synchronous replication, …[Read more]