Hive unsupported interfaces and features

You need to know the interfaces available in HDP or CDH platforms that are not supported.

The following interfaces are not supported in CDP Private Cloud Base:

  • Druid
  • Hcat CLI (however HCatalog is supported)
  • Hive CLI (replaced by Beeline)
  • Hive View
  • LLAP
  • MapReduce execution engine (replaced by Tez)
  • Pig
  • S3 for storing tables
  • Spark execution engine (replaced by Tez)
  • Spark thrift server

    Spark and Hive tables interoperate using the Hive Warehouse Connector.

  • SQL Standard Authorization
  • Storage Based Authorization
  • Tez View
  • WebHCat

You can use Hue in lieu of Hive View.

Storage Based Authorization

Storage Based Authorization (SBA) is not longer supported in CDP. Ranger integration with Hive metastore provides consistency in Ranger authorization enabled in HiveServer (HS2). SBA does not provide authorization support for metadata that lacks a file/directory association. Ranger-based authorization has no such limitation.

Partially unsupported interfaces

Apache Hadoop Distributed Copy (DistCP) is not supported for copying Hive ACID tables. See link below.

Unsupported Features

CDP does not support the following features that were available in HDP and CDH platforms:

  • CREATE TABLE that specifies a managed table location

    Do not use the LOCATION clause to create a managed table. Hive assigns a default location in the warehouse to managed tables. That default location is configured in Hive using the hive.metastore.warehouse.dir configuration property, but can be overridden for the database by setting the CREATE DATABASE MANAGEDLOCATION parameter.

  • CREATE INDEX and related index commands were removed in Hive 3, and consequently are not supported in CDP.

    In CDP, you use the Hive 3 default ORC columnar file formats to achieve the performance benefits of indexing. Materialized Views with automatic query rewriting also improves performance. Indexes migrated to CDP are preserved but render any Hive tables with an undroppable index. To drop the index, google the Known Issue for CDPD-23041.

  • Hive metastore (HMS) high availablility (HA) load balancing in CDH

    You need to set up HMS HA as described in the documentation.

Unsupported Connector Use

CDP does not support the Sqoop exports using the Hadoop jar command (the Java API) that Teradata documents.