We got a interesting an issue with our setup.
2 query and search
Application when connects to all these servers in the connecting string, it gave an error:-
[10.166.70.206:11210][KeyValueEndpoint]: Authentication Failure: Bucket not found on Select Bucket command
So when we removed 2 servers of indexing and 2 for query/ search from connection string of app, issue got resolved.
My question is
Is application connections string only specifies data service?