Creating a Data Connection on the Flink Web UI

Scenario

Different data services can be accessed through data connections. Currently, FlinkServer supports HDFS, Kafka data connections.

Creating a Data Connection

1. Access the Flink web UI. For details, see Accessing the Flink Web UI.
2. Choose System Management > Data Connection Management. The Data Connection Management page is displayed.
3. Click Create Data Connection. On the displayed page, select a data connection type, enter information by referring to Table 1, and click OK.

   Table 1 Parameters for creating a data connection

   Parameter	Description	Example Value
   Data Connection Type	Type of the data connection, which can be HDFS, Kafka.	-
   Data Connection Name	Name of the data connection, which can contain a maximum of 100 characters. Only letters, digits, and underscores (_) are allowed.	-
   Cluster Connection	Cluster connection name in configuration management. This parameter is mandatory for HDFS data connections.	-
   Kafka broker	Connection information about Kafka broker instances. The format is IP address:Port number. Use commas (,) to separate multiple instances. This parameter is mandatory for Kafka data connections.	192.168.0.1:21005,192.168.0.2:21005
   Authentication Mode	SIMPLE: indicates that the connected service is in non-security mode and does not need to be authenticated. KERBEROS: indicates that the connected service is in security mode and the Kerberos protocol for security authentication is used for authentication. This parameter is mandatory for Kafka data connections.	-