We have a setup of 3.6.9 version, and observed two primaries on setup. Now as per this link
there can be a possibility of two P nodes being available.
As per docs, “When this occurs, clients that connect to the former primary may observe stale data despite having requested read preference primary, and new writes to the former primary will eventually roll back.”
but in our case, the writes did not happen to either of transient primary. Why is it so?