我的 Mongo DB 集具有 3 个副本集。一个主节点和两个辅助节点。
var connectionString = ConfigurationManager.AppSettings["MongoDBWriteCS"];
var client = new MongoClient(connectionString);
_MongoWriteServer = client.GetServer();
_WriteDatabase = _MongoWriteServer.GetDatabase("DBName");
_WriteDatabase.GetCollection<CollectionType>("CollectionName").Insert(Object);
当我的代码使用以下连接字符串运行时,插入记录没有问题
<add key="MongoDBWriteCS" value="mongodb://username:password@10.0.0.0:27019/admin?w=0" />
但问题是,因为它在副本集上,所以当主从 27019 变为 27018 或 27017 插入失败时,我的主会不断变化。
所以我尝试将我的连接字符串更改为更真实的副本集连接字符串。
<add key="MongoDBWriteCS" value="mongodb://username:password@10.0.0.0:27017,10.0.0.0:27018,10.0.0.0:27019/admin?replicaSet=myRepSet&readPreference=primaryPreferred&w=0" />
它一直以“没有这样的主机”或“无法连接到成员”而失败,但是在同一行代码中获取集合列表工作(我的意思是读取工作仅写入失败,如插入或保存命令)
我正在使用MongoDB 2.6.4
rs.status()
/* 0 */
{
"set" : "rbRepSet",
"date" : ISODate("2015-03-09T23:27:17.000Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "haboMongo:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 59570,
"optime" : Timestamp(1425941592, 5),
"optimeDate" : ISODate("2015-03-09T22:53:12.000Z"),
"lastHeartbeat" : ISODate("2015-03-09T23:27:16.000Z"),
"lastHeartbeatRecv" : ISODate("2015-03-09T23:27:17.000Z"),
"pingMs" : 0,
"syncingTo" : "haboMongo:27019"
},
{
"_id" : 1,
"name" : "haboMongo:27018",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 2220179,
"optime" : Timestamp(1425941592, 5),
"optimeDate" : ISODate("2015-03-09T22:53:12.000Z"),
"lastHeartbeat" : ISODate("2015-03-09T23:27:17.000Z"),
"lastHeartbeatRecv" : ISODate("2015-03-09T23:27:16.000Z"),
"pingMs" : 0,
"syncingTo" : "haboMongo:27019"
},
{
"_id" : 2,
"name" : "haboMongo:27019",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 2220202,
"optime" : Timestamp(1425941592, 5),
"optimeDate" : ISODate("2015-03-09T22:53:12.000Z"),
"electionTime" : Timestamp(1425100988, 1),
"electionDate" : ISODate("2015-02-28T05:23:08.000Z"),
"self" : true
}
],
"ok" : 1
}
rs.config()
/* 0 */
{
"_id" : "rbRepSet",
"version" : 3,
"members" : [
{
"_id" : 0,
"host" : "haboMongo:27017"
},
{
"_id" : 1,
"host" : "haboMongo:27018"
},
{
"_id" : 2,
"host" : "haboMongo:27019"
}
]
}