英文:
Connecting to MongoDB Atlas using Golang mgo: Persistent no reachable server to replica set
问题
我有一个来自MongoDB Atlas的副本集，可以用任何其他语言和常规的mongo客户端连接，提供的URL格式如下：
mongodb://user:pass@prefix1.mongodb.net:27017,prefix2.mongodb.net:27017,prefix3.mongodb.net:27017/test?&replicaSet=Cluster0-shard-0&authSource=admin
无论我尝试什么，添加ssl=true或者移除，都不起作用。始终显示"没有可达的服务器"。
我尝试了URL的每种组合，每种dialConfig的组合，还有Dial和DialWithConfig的配置。
可能的原因是什么？
英文:
I have a replica set from MongoDB atlas, to which I can connect with ANY other language, and regular mongo client, with the URL provided with the format :
mongodb://user:pass@prefix1.mongodb.net:27017,prefix2.mongodb.net:27017,prefix3.mongodb.net:27017/test?&replicaSet=Cluster0-shard-0&authSource=admin
No matter what I tried, adding ssl=true and removing, nothing works. It is always "no reachable server".
I tried every single combination for URL, every combination for dialConfig, and also Dial and DialWithConfig configurations.
What could be the reason ?
答案1
得分: 20
使用MongoDB Go驱动程序mgo的代码片段连接到MongoDB Atlas是有效的，使用您提供的示例数据：
import (
"gopkg.in/mgo.v2"
"crypto/tls"
"net"
)
tlsConfig := &tls.Config{}
dialInfo := &mgo.DialInfo{
Addrs: []string{"prefix1.mongodb.net:27017",
"prefix2.mongodb.net:27017",
"prefix3.mongodb.net:27017"},
Database: "authDatabaseName",
Username: "user",
Password: "pass",
}
dialInfo.DialServer = func(addr *mgo.ServerAddr) (net.Conn, error) {
conn, err := tls.Dial("tcp", addr.String(), tlsConfig)
return conn, err
}
session, err := mgo.DialWithInfo(dialInfo)
请注意，您还可以仅指定副本集成员中的一个作为种子。例如：
Addrs: []string{"prefix2.mongodb.net:27017"}
另请参阅：
更新：
您还可以使用ParseURL()方法解析MongoDB Atlas URI字符串。但是，目前此方法不支持SSL（mgo.V2 PR:304）。
解决方法是在解析之前删除ssl=true行。
//没有ssl=true的URI
var mongoURI = "mongodb://username:password@prefix1.mongodb.net,prefix2.mongodb.net,prefix3.mongodb.net/dbName?replicaSet=replName&authSource=admin"
dialInfo, err := mgo.ParseURL(mongoURI)
//以下部分与上面类似。
tlsConfig := &tls.Config{}
dialInfo.DialServer = func(addr *mgo.ServerAddr) (net.Conn, error) {
conn, err := tls.Dial("tcp", addr.String(), tlsConfig)
return conn, err
}
session, _ := mgo.DialWithInfo(dialInfo)
英文:
Using MongoDB Go driver mgo code snippet below to connect to MongoDB Atlas works, using your example data:
import (
"gopkg.in/mgo.v2"
"crypto/tls"
"net"
)
tlsConfig := &tls.Config{}
dialInfo := &mgo.DialInfo{
Addrs: []string{"prefix1.mongodb.net:27017",
"prefix2.mongodb.net:27017",
"prefix3.mongodb.net:27017"},
Database: "authDatabaseName",
Username: "user",
Password: "pass",
}
dialInfo.DialServer = func(addr *mgo.ServerAddr) (net.Conn, error) {
conn, err := tls.Dial("tcp", addr.String(), tlsConfig)
return conn, err
}
session, err := mgo.DialWithInfo(dialInfo)
Note that you can also specify only one of the replica set members as a seed. For example:
Addrs: []string{"prefix2.mongodb.net:27017"}
See also:
Update:
You could also use ParseURL() method to parse MongoDB Atlas URI string. However, currently this method does not support SSL (mgo.V2 PR:304)
A work around is to take out the ssl=true line before parsing.
//URI without ssl=true
var mongoURI = "mongodb://username:password@prefix1.mongodb.net,prefix2.mongodb.net,prefix3.mongodb.net/dbName?replicaSet=replName&authSource=admin"
dialInfo, err := mgo.ParseURL(mongoURI)
//Below part is similar to above.
tlsConfig := &tls.Config{}
dialInfo.DialServer = func(addr *mgo.ServerAddr) (net.Conn, error) {
conn, err := tls.Dial("tcp", addr.String(), tlsConfig)
return conn, err
}
session, _ := mgo.DialWithInfo(dialInfo)
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