ApsaraDB for MongoDB:Connect to a replica set instance by using DMS

Preparations

Add the IP addresses of the DMS server to a whitelist of the ApsaraDB for MongoDB instance based on the network type of the instance. For more information, see Configure a whitelist for an ApsaraDB for MongoDB instance.

Procedure

1. Log on to the ApsaraDB for MongoDB console .

2. In the left-side navigation pane, click Replica Set Instances.

3. In the upper-left corner of the page, select the resource group and region to which the instance belongs.

4. Click the ID of the instance that you want to manage or click Manage in the Actions column.

5. In the upper-right corner of the page that appears, click Log On and select Primary, Secondary, or Readonly. Then, you are redirected to the DMS page.

   Note

   • Primary: the primary node in the replica set instance. If you connect to this node, you can perform both read and write operations on the databases of the replica set instance.

   • Secondary: the secondary node in the replica set instance. If you connect to this node, you can perform only read operations on the databases of the replica set instance.

   • Readonly: the read-only node in the replica set instance. If you connect to this node, you can perform only read operations on the databases of the replica set instance. For more information about read-only nodes, see Read-only nodes.

6. In the Log on to Database Instance dialog box, configure the parameters described in the following table.

   Parameter	Description
   Database Type	The engine of the database. By default, the engine of the database to be connected is selected.
   Instance Region	The region in which the instance is deployed. By default, the region of the current instance is selected.
   Connection string address	The endpoint of the instance. By default, the endpoint of the current instance is displayed.
   Database Name	The name of the authentication database in which the database account is created. Note If the Database Account parameter is set to root, the database name is admin. We recommend that you do not log on to a database as the root user in the production environment. You can create users and grant permissions to them based on your requirements. For more information, see Manage the permissions of MongoDB database users.
   Database Account	The account that is used to access the database. The initial account is root.
   Database password	The password that is used to access the database. Note If you forget the password of the root account, you can reset the password by using the method described in the (Optional) Reset a password section of this topic.
   Control Mode	The mode that you use to manage the instance. Select a mode based on your business requirements. For more information, see Control modes.

7. Click Login.

   Note

   If you want the browser to save the password, select Remember password and then click Login.

Common connection scenarios

• Connect to an ApsaraDB for MongoDB instance over the Internet

• Connect an ECS instance to an ApsaraDB for MongoDB instance that uses a different network type over the internal network

• Connect an ECS instance to an ApsaraDB for MongoDB instance in a different region over the internal network

• Connect an ECS instance to an ApsaraDB for MongoDB instance within a different Alibaba Cloud account over the internal network

FAQ

• Troubleshoot logon issues for the mongo shell

• How to troubleshoot database connection failures after the number of connections reaches the upper limit

• Troubleshoot the high CPU utilization of ApsaraDB for MongoDB

• How do I query and limit the number of connections?