hive.metastore.schema.verification is not enabled so recording the schema version 1.1.0-cdh5.12.0 17/09/10 23:13:42 WARN metastore.ObjectStore: Failed to get database default, returning NoSuchObjectException You might find the original Hive paper useful. In the CREATE EXTERNAL SCHEMA statement, specify FROM HIVE METASTORE and include the metastore's URI and port number. The hive schema holds the hive tables though. Upgrade the schema from an older version to current. This tool can be used to initialize the metastore schema for the current Hive version. If the external metastore version is Hive 2.0 or above, use the Hive Schema Tool to create the metastore tables. Hive now records the schema version in the metastore database and verifies that the metastore schema version is compatible with the Hive binaries that are going to access the metastore. Use the Metastore command-line schematool to upgrade or validate the metastore database schema for unmanaged clusters.. 2. From the Cloudera Manager Admin console, select the Hive service. This article will go through the steps to upgrade metastore schema using Hive schema tool, taking PostgreSQL for example. Instead of using the Databricks Hive metastore, you have the option to use an existing external Hive metastore instance or the AWS Glue Catalog. 3. It provides client access to this information by using metastore service API. Metastore is the central repository of Apache Hive metadata. Schematool is a offline command line tool to manage the metastore.. Hive-Metastore. All Hive implementations need a metastore service, where it stores metadata. What is Hive Metastore? Metastores. The hive metastore DB is a normal MySQL/etc database with a hive schema in it. The following example creates an external schema using a Hive metastore database named hive_db. The reason for this issue is that the Hive Metastore cannot access the Hive database. Solution. The Hive properties to implicitly create or alter the existing schema are disabled by default. Verify if the metastore schema version is compatible with Hive binaries. Before Hive 0.12, we have to manually run the upgrade DDL SQL files in the metastore database. For versions below Hive 2.0, add the metastore tables with the following configurations in your existing init script: I would also suggest you to browse through the official Hive documentation and read the good book Programming Hive. By default, Hive uses a built-in Derby SQL server. 17/09/10 23:13:41 WARN metastore.ObjectStore: Version information not found in metastore. Note: If you are using Cloudera Manager to manage your clusters, the Metastore schematool is also available in the Hive service page to validate or upgrade the metastore:. It is implemented using tables in a relational database. 2. 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