Using DBeaver to Access HetuEngine

Prerequisites

• The DBeaver has been installed properly. Download the DBeaver software from https://dbeaver.io/download/.
• A human-machine user, for example, hetu_user, has been created in the cluster. For details, see Creating a HetuEngine User. For clusters with Ranger authentication enabled, the Ranger permission must be added to user hetu_user based on service requirements. For details, see Adding a Ranger Access Permission Policy for HetuEngine.
• A compute instance has been created and is running properly. For details, see Creating a HetuEngine Compute Instance.

Procedure

1. Download the HetuEngine client to obtain the JDBC JAR package.
   1. Log in to FusionInsight Manager.
   2. Choose Cluster > Services > HetuEngine > Dashboard.
   3. In the upper right corner of the page, choose More > Download Client and download the Complete Client to the local PC as prompted.
   4. Decompress the HetuEngine client package FusionInsight_Cluster_Cluster ID_ HetuEngine_Client.tar to obtain the JDBC file and save it to a local directory, for example, D:\test.
      

      Obtaining the JDBC file:

      Decompress the package in the FusionInsight_Cluster_Cluster ID_HetuEngine_ClientConfig\HetuEngine\xxx\ directory to obtain the hetu-jdbc-*.jar file.

      Note: xxx can be arm or x86.

2. Add the host mapping to the local hosts file.

   Add the mapping of the host where the instance is located in the HSFabric or HSBroker mode. The format is Host IP address Host name.

   Example: 192.168.42.90 server-2110081635-0001

   

   The local hosts file in a Windows environment is stored in, for example, C:\Windows\System32\drivers\etc.

3. Open DBeaver, choose Database > New Database Connection, search for Trino in ALL, and open Trino.
4. Click Edit Driver Settings and set parameters by referring to the following table.

   Table 1 Driver settings

   Parameter	Value
   Class Name	io.trino.jdbc.TrinoDriver
   URL Template	Accessing HetuEngine using HSFabric jdbc:trino://<HSFabricIP1:port1>,<HSFabricIP2:port2>,<HSFabricIP3:port3>/Catalog name/Schema name?serviceDiscoveryMode=hsfabric&tenant=Tenant name Example: jdbc:trino://192.168.42.90:29902,192.168.42.91:29902,192.168.42.92:29902/hive/default?serviceDiscoveryMode=hsfabric&tenant=default Accessing HetuEngine using HSBroker jdbc:trino://<HSBrokerIP1:port1>,<HSBrokerIP2:port2>,<HSBrokerIP3:port3>/Catalog name/Schema name?serviceDiscoveryMode=hsbroker&tenant=Tenant name Example: jdbc:trino://192.168.42.90:29860,192.168.42.91:29860,192.168.42.92:29860/hive/default?serviceDiscoveryMode=hsbroker&tenant=default

   

   • To obtain the IP addresses and port numbers of the HSFabric and HSBroker nodes, perform the following operations:
     1. Log in to FusionInsight Manager.
     2. Choose Cluster > Services > HetuEngine. Click the Instance tab to obtain the service IP addresses of all HSFabric or HSBroker instances. You can select one or more normal instances for connection.
     3. To obtain the port numbers, choose Cluster > Services > HetuEngine. Click Configurations then All Configurations.

        Search for gateway.port to obtain the HSFabric port number. The default port number is 29902 in security mode and 29903 in normal mode.

        Search for server.port to obtain the HSBroker port number. The default port number is 29860 in security mode and 29861 in normal mode.

   • If the connection fails, disable the proxy and try again.
   • The tenant parameter is optional. If it is not configured, a random tenant is used.

5. Click Add File and upload the JDBC driver package obtained in 1.
6. Click Find Class. The driver class is automatically obtained. Click OK to complete the driver setting. If io.trino:trino-jdbc:RELEASE exists in Libraries, delete it before clicking Find Class.
   Figure 1 Configuring the driver in security mode (Settings)
   
   Figure 2 Configuring the driver in security mode (Library)
   

7. Configure the connection.
   • Security mode (clusters with Kerberos authentication enabled):

     On the Main tab page for creating a connection, enter the user name and password created in Prerequisites, and click Test Connection. After the connection is successful, click OK then Finish. You can click Connection details (name, type, ... ) to change the connection name.

     Figure 3 Configuring parameters on the Main tab in security mode
     
   • Normal mode (clusters with Kerberos authentication disabled):

     On the Main tab page for creating a connection, set JDBC URL and do not enter the password of the username.

     On the page for creating a connection, configure the parameters on the Driver properties tab. Set user to the user created in Prerequisites. Click Test Connection. After the connection is successful, click OK then Finish. You can click Connection details (name, type, ... ) to change the connection name.

     Figure 4 Configuring parameters on the Driver properties tab in normal mode
     

8. After the connection is successful, the page shown in the following figure is displayed.
   Figure 5 Successful connection