Obtaining the Cluster Connection Address

Scenario

You can access GaussDB(DWS) clusters by different methods and the connection address of each connection method varies. This section describes how to view and obtain the private network address on the Huawei Cloud platform, public network address on the Internet, and JDBC connection strings.

To obtain the cluster connection address, use either of the following methods:

• Obtaining the cluster connection address on the Client Connections Page
• Obtaining the Cluster Access Addresses on the Cluster Information Page

Obtaining the cluster connection address on the Client Connections Page

1. Log in to the GaussDB(DWS) console.
2. In the navigation tree on the left, choose Management > Client Connections.
3. In the Data Warehouse Connection Information area, select an available cluster.

   You can only select clusters in the Available state.

4. View and obtain the cluster connection information.
   • Private Network IP Address
   • Public Network IP Address
   • ELB Address
   • JDBC URL (Private Network)
   • JDBC URL (Public Network)
   • ODBC URL
   

   • If no EIP is automatically assigned during cluster creation, Public Network Address is empty. If you want to use a public network address (consisting of an EIP and the database port) to access the cluster from the Internet, click Bind EIP to bind one.
   • If an EIP is bound during cluster creation but you do not want to use the public network address to access the cluster, click Unbind EIP to unbind the EIP. After the EIP is unbound, Public Network Address is empty.
   • If a cluster was not bound to ELB when it was created, the ELB Address parameter will be left blank. You can bind the cluster to ELB to avoid single CN failures.
   • If a cluster has been bound to ELB, use the ELB address to connect to the cluster for high availability purposes.
   • If the IPv6 dual stack is enabled for a GaussDB(DWS) cluster, private IPv4 and IPv6 addresses can be used. You can connect to the cluster via IPv4 or IPv6.

Obtaining the Cluster Access Addresses on the Cluster Information Page

1. Log in to the GaussDB(DWS) console.
2. In the navigation pane on the left, choose Clusters > Dedicated Clusters.
3. In the cluster list, click the name of the target cluster. The Cluster Information page is displayed.
4. In the Connection area, view and obtain the cluster's access address information, including the private network address and public network address.

   Table 1 Connection

   Parameter	Description
   Private Network Domain Name	Domain name for accessing the cluster database through the internal network. The domain name corresponds to all CN IP addresses. The private network domain address is automatically generated when a cluster is created. NOTE: If the cluster name does not comply with the domain name standards, the prefix of the default access domain name will be adjusted accordingly. Load balancing is not supported. You can click Modify to change the private network domain name. The access domain name contains 4 to 63 characters, which consists of letters, digits, and hyphens (-), and must start with a letter. For details, see Managing Access Domain Names.
   Private Network IP Address	IP address for accessing the database in the cluster over the private network. NOTE: A private IP address is automatically generated when you create a cluster. The IP address is fixed. The number of private IP addresses equals the number of CNs. You can log in to any node to connect to the cluster. If you access a fixed IP address over the internal network, all the resource pools will run on a single CN. If IPv6 is enabled for a cluster, both IPv4 and IPv6 private addresses will be displayed. You can use either of them as needed.
   Public Network Domain Name	Name of the domain for accessing the database in the cluster over the public network. For details, see Managing Access Domain Names. NOTE: Load balancing is not supported.
   Public Network IP Address	IP address for accessing the database in the cluster over the public network. NOTE: If no EIP is assigned during cluster creation and Public Network IP Address is empty, click Edit to bind an EIP to the cluster. If an EIP is bound during cluster creation, click Edit to unbind the EIP.
   Initial Administrator	Database administrator specified during cluster creation. When you connect to the cluster for the first time, you need to use the initial database administrator and password to connect to the default database.
   Port	Port number for accessing the cluster database through the public network or private network. The port number is specified when the cluster is created.
   Default Database	Database name specified when the cluster is created. When you connect to the cluster for the first time, connect to the default database.
   ELB Address	To achieve high availability and avoid single-CN failures, a new cluster needs to be bound to ELB. You are advised to use the ELB address to connect to the cluster.