@flaviu there is no SDK bug here, at least as far as we can see in what’s been presented so far. You just need to create less SDK Cluster objects IMO, as each will be receiving these configs.
There is a secondary consideration of why you’re receiving so many config updates, as it’s true that is partially going to be a factor of the number of SDK Cluster objects you have, but does still look on a quick scan to be more than I’d expect. But there’s a limit to what we can do over a forum discussion - it’s the kind of in-depth investigation that our support team would be better equipped to help with. If you take a look at your Couchbase ns-server logs, there may be some clues in there.
TL;DR: I believe the fix is to dramatically reduce the number of SDK Cluster objects you are creating.