MongoDB一主一副本一仲裁搭建步骤

mkdir -p /opt/mongo/replica_sets/myrs_27017/log & mkdir -p /opt/mongo/replica_sets/myrs_27017/data/db

vim mongod.conf

systemLog:
  destination: file
  path: /opt/mongo/replica_sets/myrs_27017/log/mongod.log
  logAppend: true
storage:
  dbPath: /opt/mongo/replica_sets/myrs_27017/data/db
  journal:
    enabled: true
processManagement:
  fork: true
  pidFilePath: /opt/mongo/replica_sets/myrs_27017/log/mongod.pid
net:
  bindIp: 192.168.0.253
  port: 27017
replication:
  replSetName: myrs

mkdir -p /opt/mongo/replica_sets/myrs_27018/log & mkdir -p /opt/mongo/replica_sets/myrs_27018/data/db

vim mongod.conf

systemLog:
  destination: file
  path: /opt/mongo/replica_sets/myrs_27018/log/mongod.log
  logAppend: true
storage:
  dbPath: /opt/mongo/replica_sets/myrs_27018/data/db
  journal:
    enabled: true
processManagement:
  fork: true
  pidFilePath: /opt/mongo/replica_sets/myrs_27018/log/mongod.pid
net:
  bindIp: 192.168.0.253
  port: 27018
replication:
  replSetName: myrs

mkdir -p /opt/mongo/replica_sets/myrs_27019/log & mkdir -p /opt/mongo/replica_sets/myrs_27019/data/db

vim mongod.conf

systemLog:
  destination: file
  path: /opt/mongo/replica_sets/myrs_27019/log/mongod.log
  logAppend: true
storage:
  dbPath: /opt/mongo/replica_sets/myrs_27019/data/db
  journal:
    enabled: true
processManagement:
  fork: true
  pidFilePath: /opt/mongo/replica_sets/myrs_27019/log/mongod.pid
net:
  bindIp: 192.168.0.253
  port: 27019
replication:
  replSetName: myrs

mongo --host=192.168.0.253 --port=27017
rs.initiate()
rs.conf()
rs.status()

rs.add("192.168.0.253:27018")
rs.status()

rs.addArb("192.168.0.253:27019")
rs.status()

db.comment.insert({"articleid":"100000","content":"今天天气真好，阳光明媚","userid":"1001","nickname":"Rose","createdatetime":new Date()})
db.comment.find()

mongo --host=192.168.0.253 --port=27018
rs.slaveOk()
show dbs
use articledb
db.comment.find()
db.comment.insert({"_id":"1","articleid":"100001","content":"我们不应该把清晨浪费在手机上，健康很重要，k一杯温水幸福你我他。","userid":"1002","nickname":"相忘于江湖","createdatetime":new Date("2019-08-05T22:08:15.522Z"),"likenum":NumberInt(1000),"state":"1"})

mongo --host=192.168.0.253 --port=27019