Kafka Streams - 2104 (MEP 7.1.0) Release Notes

The notes below relate specifically to the HPE Ezmeral Data Fabric Distribution for Apache Kafka. See Apache Kafka 2.1.1 Release Notes or the Apache Kafka Streams homepage for more information.
Release Date April 2021
HPE Version Interoperability See MEP Components and OS Support
Source on GitHub https://github.com/mapr/kafka
GitHub Release Tag
Maven Artifacts https://repository.mapr.com/maven/
Package Names See Package Names for MapR Ecosystem Packs (MEPs).

New in This Release

Kafka Streams - 2104 introduces the following enhancements or HPE platform-specific behavior changes:
  • None.


This HPE release includes the following fixes on the base release:
GitHub Commit Number



MapR Fix Number and Description
4d9def8021 2021-04-12 MAPR-KAFKA-696 Partition is returned in consumer.assignment(), but seekToEnd fails with "No current assignment for partition"
651c04c420 2021-03-31 MAPR-KAFKA-686 Service verifier was added to Kafka Connect
23e005ac30 2021-04-01 MAPR-KAFKA-692 Update Hadoop dependency to
0af5f9d9d4 2021-03-30 MAPR-KAFKA-685 CVE-2018-10237,CVE-2020-8908 vulnerabilities in Kafka
83081395 2021-03-03 MAPR-KAFKA-681 Avoid appearing NPE when using MirrorMaker
For complete details, refer to the commit log for this project in GitHub.

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 when 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. The workaround is to set a larger timeout. This issue is caused by MS-915: “MapR Stream application hangs inside cycle”

Resolved Issues

  • None.