MongoDB tip: Apply authentication option to a replica set, issue encountered and fix
Assuming we have a replicate set started as such, please refer to article 1 or article 2 to see how to configure a replica set if you haven't already done so and still have issues. Output of ps -ef | grep mongod root 20706 1 0 15:09 ? 00:00:01 mongod --port 31111 --replSet biDemo --dbpath /data/mongodb/demo1 --logpath /data/mongodb/demolog/1.log --fork root 20943 1 0 15:10 ? 00:00:01 mongod --port 31112 --replSet biDemo --dbpath /data/mongodb/demo2 --logpath /data/mongodb/demolog/2.log --fork root 21101 1 0 15:11 ? 00:00:01 mongod --port 31113 --replSet biDemo --dbpath /data/mongodb/demo3 --logpath /data/mongodb/demolog/3.log --fork Log into primary and add user, you will need at least one admin user to start and administer mongod with authentication enabled MongoDB Ente...