2026-03-12 21:01:38

tiddlywiki/MongoDB - example replication.txt

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+-- create keyfile for communication between MongoDB instances
+openssl rand -base64 756 > /app/mongodb/conf/keyfile.basic
+chmod 600 /app/mongodb/conf/keyfile.basic
+
+-- copy keyfile on ivera-mongo02 and ivera-mongo03
+
+-- mongod.conf on ivera-mongo01
+-------------------------------
+storage:
+  dbPath: "/data/mongodb/"
+  journal:
+    enabled: true
+  wiredTiger:
+    engineConfig:
+      cacheSizeGB: 1
+
+net:
+  port: 27017
+  bindIp: 127.0.0.1,ivera-mongo01,ivera-mongo01-priv
+
+security:
+  authorization: 'enabled'
+  keyFile: /app/mongodb/conf/keyfile.basic
+
+replication:
+  replSetName: majrc
+  oplogSizeMB: 100
+  enableMajorityReadConcern: true
+
+
+-- similar config files on ivera-mongo02 and ivera-mongo03
+
+
+-- on ivera-mongo01 that will be defined as PRIMARY
+
+cfg = { "_id" : "majrc", "members" : [ { "_id" : 0, "host":"ivera-mongo01-priv:27017", } ] }
+rs.initiate(cfg)
+
+rs.add('ivera-mongo02-priv:27017');
+rs.add('ivera-mongo03-priv:27017');
+
+rs.conf();
+rs.status();