Troubleshooting HDFS catalog errors

The following issues might occur when creating an HDFS catalog in watsonx.data.

General configuration requirements

Before troubleshooting specific errors, ensure the following configuration requirements are met:

1. Use Service Principals: Always use Kerberos service principals for Hive and HDFS instead of user principals.
2. Hive Metastore Port: Use the Hive metastore port (typically 9083) for the thrift port field.
3. Network Access: If the server is behind network access controls, ensure the following ports are accessible to the client:
   • Port 9083 (Hive Metastore)
   • Port 10000 (HiveServer2)
   • Port 8020 (HDFS NameNode)