mlaunch init --replicaset --node 3 mongosh --quiet "mongodb: //localhost:27017/?replicaSet=replset" > db.foo.insert({a:1}) mongosh --quiet "mongodb: //localhost:27018" > db.shutdownServer() mongosh --quiet "mongodb: //localhost:27017/?replicaSet=replset" # empty collection replset [primary] test> db.runCommand( {createIndexes: "emptyCollection" ,indexes: [{key :{ c:1}, name: "foo_i" , unique: true },{key :{ a:1}, name: "foo_d" }]}) { numIndexesBefore: 1, numIndexesAfter: 3, createdCollectionAutomatically: true , commitQuorum: 'votingMembers' , ok: 1, '$clusterTime' : { clusterTime: Timestamp({ t: 1725466919, i: 3 }), signature: { hash: Binary.createFromBase64( 'AAAAAAAAAAAAAAAAAAAAAAAAAAA=' , 0), keyId: Long ( '0' ) } }, operationTime: Timestamp({ t: 1725466919, i: 3 }) } # not empty collection, wait for the quorum replset [primary] test> db.runCommand( {createIndexes: "foo" ,indexes: [{key :{ c:1}, name: "foo_i" , unique: true },{key :{ a:1}, name: "foo_d" }]})