Pull request to implement KIP-1111, aims to add a configuration that
prevents a Kafka Streams application from starting if any of its
internal topics have auto-generated names, thereby enforcing explicit
naming for all internal topics and enhancing the stability of the
application’s topology.
- Repartition Topics:
All repartition topics are created in the
KStreamImpl.createRepartitionedSource(...) static method. This method
either receives a name explicitly provided by the user or null and then
builds the final repartition topic name.
- Changelog Topics and State Store Names:
There are several scenarios where these are created:
In the MaterializedInternal constructor.
During KStream/KStream joins.
During KStream/KTable joins with grace periods.
With key-value buffers are used in suppressions.
Reviewers: Lucas Brutschy <lbrutschy@confluent.io>, Sophie Blee-Goldman <sophie@responsive.dev>
Details:
1. Upgrades to 4.0.x are only supported from 3.3.x and for kraft mode clusters
2. Add rolling upgrade instructions for 4.0.x
3. Clarify the message for zk to kraft migrations
4. Remove all the upgrade instructions for older versions (they can still be found in the upgrade notes for older releases)
Reviewers: Chia-Ping Tsai <chia7712@gmail.com>, David Jacot <djacot@confluent.io>
3.3.0 was the first KRaft release that was deemed production-ready and also
when KIP-778 (KRaft to KRaft upgrades) landed. Given that, it's reasonable
for 4.x to only support upgrades from 3.3.0 or newer (the metadata version also
needs to be set to "3.3" or newer before upgrading).
Noteworthy changes:
1. `AlterPartition` no longer includes topic names, which makes it possible to
simplify `AlterParitionManager` logic.
2. Metadata versions older than `IBP_3_3_IV3` have been removed and
`IBP_3_3_IV3` is now the minimum version.
3. `MINIMUM_BOOTSTRAP_VERSION` has been removed.
4. Removed `isLeaderRecoverySupported`, `isNoOpsRecordSupported`,
`isKRaftSupported`, `isBrokerRegistrationChangeRecordSupported` and
`isInControlledShutdownStateSupported` - these are always `true` now.
Also removed related conditional code.
5. Removed default metadata version or metadata version fallbacks in
multiple places - we now fail-fast instead of potentially using an incorrect
metadata version.
6. Update `MetadataBatchLoader.resetToImage` to set `hasSeenRecord`
based on whether image is empty - this was a previously existing issue that
became more apparent after the changes in this PR.
7. Remove `ibp` parameter from `BootstrapDirectory`
8. A number of tests were not useful anymore and have been removed.
I will update the upgrade notes via a separate PR as there are a few things that
need changing and it would be easier to do so that way.
Reviewers: Chia-Ping Tsai <chia7712@gmail.com>, Jun Rao <junrao@gmail.com>, David Arthur <mumrah@gmail.com>, Colin P. McCabe <cmccabe@apache.org>, Justine Olshan <jolshan@confluen.io>, Ken Huang <s7133700@gmail.com>
This patch changes the default value of `group.coordinator.threads` to `4` and sets it priority to `HIGH`. This change makes it consistent with how we handle `num.network.threads` and `num.io.threads`. The patch also tweaks the upgrade notes.
Reviewers: Ismael Juma <ismael@juma.me.uk>
KAFKA-16720 aims to add the support for the AlterShareGroupOffsets AdminClient. Key Changes in the PR:
1. Added handing of alterShareGroupOffsets() in KafkaAdminClient and introduce AlterShareGroupOffsetRequest/AlterShareGroupOffsetResponse/AlterShareGroupOffsetsOptions classes.
2. Corresponding test in KafkaAdminClientTest.
3. Added ALTER_SHARE_GROUP_OFFSETS API (will finish it in next PR and the share coordinator pieces)
Reviewers: poorv Mittal <apoorvmittal10@gmail.com>, Andrew Schofield <aschofield@confluent.io>, Chia-Ping Tsai <chia7712@gmail.com>
Most of the changes are obvious clean-ups/fixes. A couple of noteworthy items:
1. Support for non LTS versions is clarified (we were incorrectly stating full support
for Java 23).
2. TLS version negotiation details are clarified.
Reviewers: Matthias J. Sax <matthias@confluent.io>, Chia-Ping Tsai <chia7712@gmail.com>
This patch introduces a new page to document the configs and metrics that have been removed in the transition to 4.0. While these removed items lack a formal deprecation cycle as they are part of KIP-500, KIP-500 itself does not provide an exhaustive list of all impacted configs and metrics. Therefore, this new page aims to assist Kafka users in understanding the specific configs and metrics that have been removed in the 4.0 release.
Reviewers: Chia-Ping Tsai <chia7712@gmail.com>
KIP-863 introduced a change to ByteBufferDeserializer which is not
properly documented, but should be called out because it could surface
bugs in application code which using ByteBufferDeserializer.
Reviewers: Lianet Magrans <lmagrans@confluent.io>, Kirk True <ktrue@confluent.io>, Chia-Ping Tsai <chia7712@gmail.com>
TengYao Chi
mingdaoy
Calvin Liu
Sebastien Viale
David Jacot
Ismael Juma
Kaushik Raina
Chirag Wadhwa
Andrew Schofield
Luke Chen
Jimmy Wang
Justine Olshan
Lianet Magrans
Jhen-Yung Hsu
PoAn Yang
Nick Guo
Albert
Ming-Yen Chung
Almog Gavra
Mehari Beyene
Joao Pedro Fonseca Dantas
Ken Huang
Matthias J. Sax
Jason Taylor
Alieh Saeedi
Sanskar Jhajharia
Kirk True