我使用的是 Windows 10 环境。我想在 MongoDB 上实现副本集。我面临一些问题..
为此，我涵盖了几乎许多在 Windows 计算机上实现这些内容的教程。
我想创建一个由主 Node 和另一个 Node 组成的副本集，该 Node 将复制数据。
我的结构是这样的:
- 安装文件夹:C:/Programs Files\MongoDb\Server\3.4\bin\
- 数据库文件夹:C:/data/db
- 日志文件夹:C:/data/log
- 配置:C:/data/mongod.cfg
我已经使用此命令定义了服务:
sc.exe create MongoDB binPath= "\"C:\Program Files\MongoDB\Server\3.4\bin\mongod.exe\" --service --config=\"C:\data\mongod.cfg\"" DisplayName= "MongoDB" start= "auto"
我已使用以下命令启动服务:
net start mongodb
运行成功。
但是，现在我遇到了复制问题。我设置副本集的方法是:
- 使用命令
mkdir\data\rs1\data\rs1\data\rs2在数据文件夹下创建三个名为rs1、rs2、rs3的子文件夹 - 实现 Replset 以复制三台服务器。
我的三个启动命令是: 1.启动mongod --replSet udd --logpath\data\rs1\1.log --dbpath\data\rs1 --port 27017 --smallfiles --oplogSize 64 2.启动mongod --replSet udd --logpath\data\rs1\2.log --dbpath\data\rs2 --port 27018 --smallfiles --oplogSize 64 3.启动mongod --replSet udd --logpath\data\rs1\3.log --dbpath\data\rs3 --port 27019 --smallfiles --oplogSize 64
运行这些程序后，我可以输入 mongo --port 27017；这可以正确连接到 127.0.0.1:27017/
现在我的问题是，早些时候 mongo shell 提示符为 udd:PRIMARY>；但现在改为:udd:OTHER>
请指导我如何继续进行复制；非常感谢任何帮助。
我的 rs.reconfig(config,{"force":true}) 将是
udd:OTHER> config = {_id: "udd", members: [
... {_id: 0, host: "127.0.0.1:27017"},
... {_id: 1, host: "127.0.0.1:27018"},
... {_id: 2, host: "127.0.0.1:27019"}
... ]}
{
"_id" : "udd",
"members" : [
{
"_id" : 0,
"host" : "127.0.0.1:27017"
},
{
"_id" : 1,
"host" : "127.0.0.1:27018"
},
{
"_id" : 2,
"host" : "127.0.0.1:27019"
}
]
}
udd:OTHER> rs.reconfig(config,{"force":true})
{ "ok" : 1 }
udd:OTHER> rs.status()
{
"set" : "udd",
"date" : ISODate("2018-01-31T11:58:15.717Z"),
"myState" : 2,
"term" : NumberLong(1),
"heartbeatIntervalMillis" : NumberLong(2000),
"optimes" : {
"lastCommittedOpTime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"appliedOpTime" : {
"ts" : Timestamp(1517381781, 1),
"t" : NumberLong(1)
},
"durableOpTime" : {
"ts" : Timestamp(1517381781, 1),
"t" : NumberLong(1)
}
},
"members" : [
{
"_id" : 0,
"name" : "127.0.0.1:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1506,
"optime" : {
"ts" : Timestamp(1517381781, 1),
"t" : NumberLong(1)
},
"optimeDate" : ISODate("2018-01-31T06:56:21Z"),
"configVersion" : 37530,
"self" : true
},
{
"_id" : 1,
"name" : "127.0.0.1:27018",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDurable" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"optimeDurableDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2018-01-31T11:58:15.677Z"),
"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "No connection could be made because the target machine actively refused it.",
"configVersion" : -1
},
{
"_id" : 2,
"name" : "127.0.0.1:27019",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDurable" : {
"ts" : Timestamp(0, 0),
"t" : NumberLong(-1)
},
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"optimeDurableDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2018-01-31T11:58:15.670Z"),
"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
"pingMs" : NumberLong(0),
"lastHeartbeatMessage" : "No connection could be made because the target machine actively refused it.",
"configVersion" : -1
}
],
"ok" : 1
}
udd:SECONDARY>
现在 rs.conf() 将是
udd:SECONDARY> rs.conf()
{
"_id" : "udd",
"version" : 37530,
"protocolVersion" : NumberLong(1),
"members" : [
{
"_id" : 0,
"host" : "127.0.0.1:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
},
{
"_id" : 1,
"host" : "127.0.0.1:27018",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
},
{
"_id" : 2,
"host" : "127.0.0.1:27019",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : NumberLong(0),
"votes" : 1
}
],
"settings" : {
"chainingAllowed" : true,
"heartbeatIntervalMillis" : 2000,
"heartbeatTimeoutSecs" : 10,
"electionTimeoutMillis" : 10000,
"catchUpTimeoutMillis" : 60000,
"getLastErrorModes" : {
},
"getLastErrorDefaults" : {
"w" : 1,
"wtimeout" : 0
},
"replicaSetId" : ObjectId("5a715e56bff9fd66ea55b862")
}
}
udd:SECONDARY>
最佳答案
清除错误消息:InvalidReplicaSetConfig
所有 3 个代表 mongod 都已启动，然后尝试:
rs.reconfig({force:true})
db.isMaster()
关于node.js - Windows 上的 MongoDB 副本集面临一些基本问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48538346/