3 ms·from this answer and your blog post it appears you were not using mongodb replica sets. is this true?by coops 14y agofrom this answer and your blog post it appears you were not using mongodb replica sets. is this true?willbmoss 14y agoWe had two replica sets of three nodes each. After the first migration, we took it down to one replica set.coops 14y agodid the standard replica set election process not work for you? it is very rare for us to see a failed failover.