Kafka Streams - 2009 (MEP 7.0.0) Release Notes

The following notes relate specifically to the MapR distribution for Apache Kafka. See Apache Kafka 2.1.1 Release Notes or the Apache Kafka Streams homepage for more information.

These release notes contain only MapR-specific information and are not necessarily cumulative in nature. For information about how to use the release notes, see Ecosystem Component Release Notes.

Release Date September 2020
MapR Version Interoperability See EEP Components and OS Support
Source on GitHub https://github.com/mapr/kafka
GitHub Release Tag
Maven Artifacts


Package Names

Navigate to https://package.ezmeral.hpe.com/releases/MEP/ and select your EEP and OS to view the list of package names

New in This Release



This MapR release includes the following fixes on the base release:
GitHub Commit Number Date (YYYY-MM-DD) MapR Fix Number and Description
fa80ee2 2019-03-30 MAPR-KAFKA-280 mapr version is changed to 6.2.0-mapr-SNAPSHOT
9a9e3ce 2019-05-15 MAPR-KAFKA-331 Kafka uses 2.7.4 version of hadoop.
4ffa437 2019-07-05 MAPR-KAFKA-399 Jetty version was updated at Kafka to latest 9.4 (as of 06/28 - it is 9.4.19.v20190610).
941f2b8 2020-04-06 MAPR-KAFKA-564 Update gradle version and fix config files in order to build with java 11
7a51ece 2020-07-09 MAPR-KAFKA-582 Update ZK to v3.5.6
33152eb 2020-07-09 MAPR-KAFKA-588 Create only absent internal streams for KStreams

Known Issues and Limitations

  • Pattern subscription is not supported.
  • The Application Reset tool hangs if it runs when the Kafka Streams application is running.
  • The Application Reset tool may throw a Null Pointer Exception if the date or duration parameter is used.
  • The Application Reset tool does not reset to intermediate offset if the topic has multiple partitions.
  • MAPR-KAFKA-581: Stream hangs in rebalancing state; caused by MS-915: MapR Stream application hangs inside cycle. Workaround: Increase the value of the streams.rpc.timeout.ms parameter, as described in Enabling Soft Mount and Setting the Timeout and Configuration Parameters.

Resolved Issues

  • None.