Peter, MM2 writes offset syncs upstream to the source cluster, which are then used to emit checkpoints to the target cluster. There is no particular reason why offset syncs are stored on the source cluster instead of the target, and it's been suggested that we swap that around.
Ryanne On Wed, Jan 8, 2020, 3:58 AM Péter Sinóros-Szabó <peter.sinoros-sz...@transferwise.com.invalid> wrote: > Hi, > > so I am planning to use MM2 and was thinking if it has any impact on the > source cluster when mirroring. > > Obviously it impacts the performance of the source cluster, so I plan to > use quotas to solve that, but other than that, > > Does MM2 write anything back to the source cluster? > > As I understand documentation, it won't, but a clarification on this would > be great. > > Thanks for creating MM2! :) > > best, > Peter >
