Hortonworks Data Platform for HDInsight
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Descriptions of New Features

Hortonworks Data Platform (HDP) 3.1.2 provides you with several new capabilities. You must learn about the new features and their benefits to use the new features in HDP 3.1.2.

Apache component Feature areas, benefits, and links to further information
Kafka

Core Capabilities

  • Kafka Streams is now officially supported. Kafka Streams is fully integrated with platform services like Ranger and Schema Registry, and supports secure/unsecure clusters.

Security

  • Simplified access control management with support for prefixed ACLs for bulk management of entities. Access control for topic creation for specific topics/topic prefix.
  • Hostname verification to prevent SSL configuration man in the middle attacks.
  • Improved Encryption support with faster TLS and CRC32C implementations. Over-the-wire encryption is faster.
  • Simpler security configuration with SSL trust stores update without broker restart and security for Zookeeper listeners can be configured before starting brokers.

Performance

  • Prevent indefinite consumer block with new configuration options.
  • Windowed aggregation performance in Kafka streams vastly improved.

Reliability

  • Quota limit notifications to distinguish network errors from quota limits reached.
  • Better broker resiliency by reducing memory footprint of message down conversion.
  • Replication protocol improvements for fixing log divergence during fast leader failover.
Ranger

Integration

  • support Kafka 2.0 in Kafka Ranger Plugin.
  • Support `DelegationToken` resource type with `Describe` operation for Kafka.
  • Support for cluster resource type for Kafka.
  • Support for Create operation with Topic resource in Kafka.
  • Support for Knox Trusted Proxy. Ranger now supports doAs (Trusted proxy).