Kafka Streams 2.6.1.0 - 2110 (EEP 8.0.0) Release Notes
The notes below relate specifically to the HPE Ezmeral Data
Fabric Distribution for Apache Kafka. See Apache Kafka 2.6.1 release notes or the Apache
Kafka Streams homepage for more information.
| Version | 2.6.1.0 |
| Release Date | October 2021 |
| HPE Version Interoperability | See EEP Components and OS Support. |
| Source on GitHub | https://github.com/mapr/kafka |
| GitHub Release Tag | 2.6.1.0-eep-800 |
| Maven Artifacts | https://repository.mapr.com/maven/ |
| Package Names | See Package Names for Ezmeral Ecosystem Packs (EEPs). |
New in This Release
Kafka Streams 2.6.1.0 - 2110 introduces the following enhancements or HPE platform-specific
behavior changes:
- Kafka-664: When a Consumer application (in HPE Ezmeral Data Fabric Event Data Streams)
calls
consumer.poll(), the Consumer does not read any data from the topic if the timeout (request.timeout.ms) is set to 0. In previous releases, Consumers read one message.
Fixes
This HPE release includes the following fixes on the base release:
For complete details, refer to the commit log for this project in GitHub.
| GitHub Commit Number |
Date (YYYY-MM-DD) |
MapR Fix Number and Description |
360bf7ab, b0507115 |
2021-10-11 | KAFKA-783 Add log4j properties for MM2. |
c9a89245 |
2021-10-06 | KAFKA-781 Avoid overwriting task user name. |
e3f52c9394 |
2021-09-25 | KAFKA-770 Configuration topic which stores offsets should store the topics' names without Mapr Stream name. |
69565a337e |
2021-09-23 | KAFKA-761 Seek to beginning of Mapr partitions before reading logs from configuration's topics. |
343c082fbc |
2021-09-16 | KAFKA-762 NPE while starting kafka-connect service on core 7.0.0 |
ba61df9ded |
2021-07-17 | KAFKA-654 Make MirrorMaker 2 fully functional with Mapr Streams |
bd0c93efd2 |
2021-09-08 | KAFKA-757 mapr-security-web jar should be taken from the cluster |
6ad6204cdf |
2021-09-05 | KAFKA-758 Update the maven artifact version strings to eep |
20f177c8fb |
2021-09-01 | KAFKA-752 KafkaConsumer.pause() throws NoSuchElementException |
cc0c8eaf13 |
2021-08-25 | KAFKA-751 Protobuf and JsonSchema formats were added to Schema Registry 6.0.0 |
290bf71f61 |
2021-08-19 | KAFKA-746 Remove workaround implemented due to the difference in work of poll(0) between Mapr and Apache Kafka. |
32cfddfd2a |
2021-08-18 | KAFKA-725 Update hadoop dependency |
9910062bb7 |
2021-08-17 | KAFKA-745 Update Jackson dependencies |
61e6625b43 |
2021-08-13 | KAFKA-686 Service verifier was added to Kafka Connect |
ecc67384f7 |
2021-08-10 | KAFKA-680 Jetty CVE for kafka components |
8fb65fa77b |
2021-07-08 | KAFKA-724 Avoid appearing NPE when using MirrorMaker |
ca2adcf2d9 |
2021-07-02 | KAFKA-654 The value of property AUTO_COMMIT_INTERVAL_MS_CONFIG has Long type |
e326b73eb2 |
2021-05-25 | KAFKA-714 mapr-streams dependency was replaced with kafka-eventstreams |
29e9fe9f14 |
2021-05-24 | KAFKA-715 Hadoop dependency was updated to 2.7.5.100-mapr-720-SNAPSHOT |
e6a7e80417 |
2021-03-03 | KAFKA-681 Avoid appearing NPE when using MirrorMaker |
00b0b4b438 |
2021-02-24 | KAFKA-679 Hadoop version was changed to 2.7.4.0-mapr-710 |
b02d49328f |
2021-02-23 | KAFKA-676 Workaround for not implemented method MarlinAdminClientImpl.describeConfigs |
939b524487 |
2021-02-19 | KAFKA-650 Kafka connect JDBC code base was upgraded to version 10.0.1 |
6dff118ef9 |
2021-02-15 | KAFKA-649 Kafka connect code base was upgraded to version 10.0.0 |
18c41383c0 |
2021-02-11 | KAFKA-670 Avoid potential use of Apache methods in Mapr Kafka 2.6 |
210c161329 |
2021-01-14 | KAFKA-660 TaskManager should be inited before adding records to tasks. |
c2898ea40c |
2021-01-21 | KAFKA-666 Synchronized blocks with monitor object 'taskmanager' were removed. |
0882ab8b3a |
2021-01-12 | KAFKA-662 InternalStreamCompacted attribute was removed from StoreChangelogReader |
5bd960288c |
2021-01-05 | KAFKA-659 Avoid appearing NullPointerException |
Known Issues and Limitations
-
Transactions are not supported.
-
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.