KSQL - 2210 (EEP 9.0.0) Release Notes

The notes below relate specifically to the HPE Ezmeral Data Fabric Distribution for Apache Kafka.
Release Date October 2022
HPE Version Interoperability See EEP Components and OS Support.
Source on GitHub https://github.com/mapr/ksql
GitHub Release Tag
Maven Artifacts https://repository.mapr.com/maven/
Package Names See Package Names for Ecosystem Packs (EEPs).

New in This Release

KSQL - 2210 introduces the following enhancements or HPE platform-specific behavior changes:
  • CVE fixes.
  • Bug fixes.


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



MapR Fix Number and Description
818a4f3354 2022-10-14 KAFKA-902 Fix CVE's in Kafka (part2)
5db458bc8f 2022-08-30 KAFKA-902 Fix CVE's in Kafka
60a502e018 2022-08-22 KAFKA-901 KSQL not started because of Exception java.lang.NoClassDefFoundError: io/confluent/rest/RestConfig
db8f4f5b21 2022-08-19 KAFKA-900 Update hadoop artifacts version to
fa91685985 2022-08-12 KAFKA-881 Update Kafka to use 'reload4j'
92b603b567 2022-07-08 KAFKA-888 Kafka dependency updates to work with Hadoop3 libs
48d5226878 2022-06-13 KAFKA-882 Ksql client does not handle cross-cluster auth feature
9fd32a457e 2022-06-10 KAFKA-883 Update hadoop, hbase, hive dependencies for all kafka eco
e789ddd8a1 2022-06-01 KAFKA-863 Add explicit restutils dependency to ksql
For complete details, refer to the commit log for this project in Github.

Known Issues and Limitations

  • You cannot upgrade KSQL from 4.x to 5.x/6.x versions; you must uninstall KSQL 4.x and then install the newer version.
  • Concurrent queries on a table can result in a null pointer exception.
  • The SHOW TOPICS command does not print information about active consumers and consumer groups.
  • MAPR-KAFKA-437: Dropping streams/tables may take up to five minutes. This issue is caused by MS-915: “MapR Stream application hangs inside cycle”
  • MAPR-KAFKA-427: KSQL server periodically responds with a 403 code only. This issue is caused by MS-915: “MapR Stream application hangs inside cycle”

Resolved Issues

  • None.