摘要：安裝環境簡介命令行操作比較方便創建數據庫文件夾配置文件等數據庫文件夾文件夾配置文件配置文件更改端口號即可，具體內容如下啟動查看狀態副本集配置并啟動添加其他成員這次指定參數，以為創建一個仲裁接點查看副

安裝環境簡介
Windows10、MongoDB4.0.3、Robo 3T(mongo命令行操作比較方便)

創建數據庫文件夾、配置文件等

  （1）數據庫文件夾：db27017、db37017、db47017
  （2）log文件夾：log27017、log37017、log47017
  （3）配置文件：mongod27017、mongod37017、mongod47017
  配置文件更改端口號即可，具體內容如下：
  λ cat mongod27017.conf
   systemLog:
       destination: file
       logAppend: true
       path: E:mongolog27017mongod27017.log
   
   storage:
       dbPath: E:mongodb27017
       journal:
           enabled: true
       engine: wiredTiger
   
   #processManagement:
   #    fork: true
   #    pidFilePath: E:mongomongod27017.pid
   
   net:
       port: 27017
   
   replication:
       replSetName: mongo
       

啟動primary

  λ mongod --config "..mongod27017.conf"
  2018-11-08T21:23:38.399+0800 I CONTROL  [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols "none"
   #查看狀態
   > rs.status()
   {
           "operationTime" : Timestamp(0, 0),
           "ok" : 0,
           "errmsg" : "no replset config has been received",
           "code" : 94,
           "codeName" : "NotYetInitialized",
           "$clusterTime" : {
                   "clusterTime" : Timestamp(0, 0),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }
  #副本集配置并啟動
  > config = {_id:"mongo",members:[{_id:0,host:"127.0.0.1:27017"}]}
       {
               "_id" : "mongo",
               "members" : [
                       {
                               "_id" : 0,
                               "host" : "127.0.0.1:27017"
                       }
               ]
       }
   > rs.initiate(config)
   {
           "ok" : 1,
           "operationTime" : Timestamp(1541685032, 1),
           "$clusterTime" : {
                   "clusterTime" : Timestamp(1541685032, 1),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }

添加其他成員

 λ mongod --config "..mongod37017.conf"
2018-11-08T21:52:18.237+0800 I CONTROL  [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols "none"

   mongo:PRIMARY> rs.add("127.0.0.1:37017")
   {
           "ok" : 1,
           "operationTime" : Timestamp(1541685236, 1),
           "$clusterTime" : {
                   "clusterTime" : Timestamp(1541685236, 1),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }
 
 λ mongod --config "..mongod47017.conf"
 2018-11-08T22:01:26.664+0800 I CONTROL  [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols "none"
   #這次指定arbiterOnly參數，以為創建一個仲裁接點
   mongo:PRIMARY> rs.add("127.0.0.1:47017",{arbiterOnly:true})
   {
           "ok" : 1,
           "operationTime" : Timestamp(1541685748, 1),
           "$clusterTime" : {
                   "clusterTime" : Timestamp(1541685748, 1),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }
   #查看副本集的狀態信息
   mongo:PRIMARY> db.isMaster()
   {
           "hosts" : [
                   "127.0.0.1:27017",
                   "127.0.0.1:37017"
           ],
           "arbiters" : [
                   "127.0.0.1:47017"
           ],
           "setName" : "mongo",
           "setVersion" : 3,
           "ismaster" : true,
           "secondary" : false,
           "primary" : "127.0.0.1:27017",
           "me" : "127.0.0.1:27017",
           "electionId" : ObjectId("7fffffff0000000000000001"),
           "lastWrite" : {
                   "opTime" : {
                           "ts" : Timestamp(1541685884, 1),
                           "t" : NumberLong(1)
                   },
                   "lastWriteDate" : ISODate("2018-11-08T14:04:44Z"),
                   "majorityOpTime" : {
                           "ts" : Timestamp(1541685884, 1),
                           "t" : NumberLong(1)
                   },
                   "majorityWriteDate" : ISODate("2018-11-08T14:04:44Z")
           },
           "maxBsonObjectSize" : 16777216,
           "maxMessageSizeBytes" : 48000000,
           "maxWriteBatchSize" : 100000,
           "localTime" : ISODate("2018-11-08T14:04:52.091Z"),
           "logicalSessionTimeoutMinutes" : 30,
           "minWireVersion" : 0,
           "maxWireVersion" : 7,
           "readOnly" : false,
           "ok" : 1,
           "operationTime" : Timestamp(1541685884, 1),
           "$clusterTime" : {
                   "clusterTime" : Timestamp(1541685884, 1),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }

以上副本集創建完成，接下來看下數據同步

   mongo:PRIMARY> show dbs
   admin   0.000GB
   config  0.000GB
   local   0.000GB
   mongo:PRIMARY> use mongo
   switched to db mongo
   mongo:PRIMARY> db.createCollection("test")
   {
           "ok" : 1,
           "operationTime" : Timestamp(1541686077, 1),
           "$clusterTime" : {
                   "clusterTime" : Timestamp(1541686077, 1),
                   "signature" : {
                           "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
                           "keyId" : NumberLong(0)
                   }
           }
   }
   mongo:PRIMARY> show collections
   test
   

以上就是搭建的全過程，后續學習再補充這塊內容~