Question

I am trying to connect from Java Driver 3.0.3 with the connection string below to a Mongo 3.0.5:

mongodb://admin:pass@myIP:myPort/databasename?authSource=databasename

but I am getting the following exception:

com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches PrimaryServerSelector. Client view of cluster state is {type=UNKNOWN, servers=[{address=myIP:myPort, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoException: java.lang.NoClassDefFoundError: com.mongodb.connection.ScramSha1Authenticator$ScramSha1SaslClient}, caused by {java.lang.NoClassDefFoundError: com.mongodb.connection.ScramSha1Authenticator$ScramSha1SaslClient}}]

I have read that MongoDB 3.0 has recently changed authentication API. I am currently using the previous interface client.getDB(), which is deprecated,

        DB db = client.getDB(uri.getDatabase()); (deprecated)

instead the new one client.getDatabase():

        MongoDatabase db = client.getDatabase("databasename");

This could be the cause of the exception supposing that getDB() is not longer supported.

BUT, the problem is, I am also using GridFS in my project and, currently, GridFS uses DB instead MongoDatabase, so I would expect the DB interface still being able to authenticate on current release because I cannot configure my mongodb to authenticate on normal connections but not authenticate on GridFS connections.

http://api.mongodb.org/java/current/com/mongodb/gridfs/GridFS.html

So, I have 2 options:

Is anyone being able to authenticate to MongoDB 3.0.5 with the old API (client.getDB())?
Is there a way to use GridFS from a MongoDatabase interface?

Thanks

Answer 1

我设法通过将身份验证机制更改为上一个（MONGODB-CR）而不是版本3中的默认新机制来解决此问题。*（SCRAM-SHA-1）。

以下是说明：

启动MongoDB而不进行身份验证（在/etc/mongod.conf中注释掉auth = yes）
更改mongodb中的身份验证机制


使用管理员

var schema = db.system.version.findOne（{＆＃34; _id＆＃34;：＆＃34; authSchema＆＃34;}）

schema.currentVersion = 3

db.system.version.save（模式）
在mydatabase数据库中创建用户（必须在更改身份验证机制后创建用户）


使用mydatabase

db.createUser（       {         用户：＆＃34; root＆＃34;，         pwd：＆＃34;传递＆＃34;，         角色：[＆＃34; readWrite＆＃34; ]       }   ）
使用身份验证重启MongoDB
从查询字符串
中指定MONGODB-CR的驱动程序调用

的mongodb：//根：通@ MYIP：MyPort上/ MyDatabase的的AuthMechanism = MongoDB的-CR

关键是：

更改mongoDB（2）和
在查询字符串（5）

Authentication on MongoDB 3.0.5 with Java Driver 3.0.3 and GridFS

1 个答案: