Establishing a Connection
Creating a JDBC Data Source
You can create a JDBC data source to connect from your Java application. Creating a JDBC data source based on the CData JDBC Driver for Apache HBase consists of three basic steps:
- Add the driver JAR file to the classpath. The JAR file is located in the lib subfolder of the installation directory. Note that the .lic file must be located in the same folder as the JAR file.
- Provide the driver class. For example:
- Provide the JDBC URL. For example:
jdbc:apachehbase:Server=127.0.0.1;Port=8080; or jdbc:cdata:apachehbase:Server=127.0.0.1;Port=8080;
The second format above can be used whenever there is a conflict in your application between drivers using the same URL format to ensure you are using the CData driver. The URL must start with either "jdbc:apachehbase:" or "jdbc:cdata:apachehbase:" and can include any of the connection properties in name-value pairs separated with semicolons.
Connecting to Apache HBase
The CData JDBC Driver for Apache HBase connects to Apache HBase via the HBase REST (Stargate) server. Set the Port and Server properties to connect to Apache HBase. The Server property will typically be the host name or IP address of the server hosting Apache HBase. If there are multiple nodes, you will use the host name or IP address of the machine running the REST (Stargate) server.
Starting the Server
Different Hadoop distributions contain different interfaces and means of starting and stopping the HBase REST server, along with different default port settings. In most distributions, the HBase REST server can be started in the foreground by running the following command: "hbase rest start -p <port>". Please consult your Hadoop distribution's documentation for further information regarding the HBase REST server.
Authenticating to Apache HBase
If authentication is configured for your server, set AuthScheme to NEGOTIATE and set the User and Password, if necessary, to authenticate through Kerberos.