Cloudera Docs

Fixing issues with Database Catalog

After an HDFS NameNode migration on a Cloudera Base on premises instance, the Database Catalog in Cloudera Data Warehouse can go into an error state. Learn how to address this issue and bring the Database Catalog back to a healthy state.

Configuration changes, upgrade, or rebuild operations cannot fix this issue because the problem is that the namenode configuration in the Database Catalog remains the same as the one before the namenode migration, which is incorrect and not usable.
  1. Log in to Cloudera Data Warehouse and click the Database Catalogs tab.
  2. Select the required Database Catalog and click > Edit.
  3. From the Database Catalog details page, click CONFIGURATIONS and update the value of dfs.ha.namenodes.ns1 in the hadoop-hdfs-site configuration file for Databus producer, Hue query processor, and Metastore. Use the NameNode value that you saved previously from the prerequisite section.


  4. Click Apply Changes and wait for the Database Catalog to reach a healthy state.