Re: New release branch 3.9

[Matthias J. Sax]

Hi Colin,

we found another blocker bug: 
https://issues.apache.org/jira/browse/KAFKA-17527

Working on a fix.


-Matthias

On 9/9/24 6:51 PM, David Arthur wrote:
Colin,

I found a race condition in the migration while investigating a flaky test.
If encountered, the migration driver will get stuck initializing.

JIRA: https://issues.apache.org/jira/browse/KAFKA-17506
PR: https://github.com/apache/kafka/pull/17147

I wouldn't normally consider this a blocker, since it's quite rare and easy
to work around, but I wanted to raise it here since this is our last chance
for migration fixes in 3.x

-David



On Mon, Sep 9, 2024 at 3:50 AM Lucas Brutschy
<lbruts...@confluent.io.invalid> wrote:

Hi Colin,

about KAFKA-17489, the bug Bruno mentioned. This needs to be fixed in
3.8 as well. The fix is probably small but tricky to get right - Bruno
has attempted to fix it, but soaking revealed that the fix is not
complete. Bruno is now out with Covid, so I will look into it. I'll
update this thread once I know more.

Cheers,
Lucas

On Mon, Sep 9, 2024 at 4:47 AM Colin McCabe <cmcc...@apache.org> wrote:

Hi Chia-Ping Tsai,

Thanks for the bug report. Let’s follow up on this this week.

Best,
Colin

On Fri, Sep 6, 2024, at 06:19, Chia-Ping Tsai wrote:
hi Colin

I raise a issue (https://issues.apache.org/jira/browse/KAFKA-17492) as
3.9 blocker, since the bug obstructs us from registering 3.9 broker to
3.8 controller

Best,
Chia-Ping

On 2024/08/09 01:46:35 Colin McCabe wrote:
Hi all,

I think it's time to transition the 3.9 branch to feature freeze.
Please note that this is 2 weeks past the original planned date. I
apologize for this; our planning wasn't perfect.

A few updates on features that are in or out of Apache Kafka 3.9:

- We have completed all the feature work for KIP-853: KRaft
controller membership changes. (Please note that there are still a few bug
fixes remaining, and the docs JIRA, KAFKA-17048, but those are all
post-feature-freeze tasks.)

- After speaking with Calvin, I moved KIP-966 out of 3.9 and into
4.0. I do feel bad about this but I just don't think we'll be able to get
it into this short release.

There are a few other KIPs that probably need to be moved to 4.0,
such as KIP-1023 and KIP-1025. I will do a more thorough review tomorrow
and reach out to people if there are gray areas. If you have a feature that
you have questions about, please reach out.

I would like to extend code freeze for Kafka 3.9 to August 29th. My
reasoning is that code freeze was 2 weeks later than expected, and also, I
will be out of the office most of next week.

I have also created a PR to mark 3.9-IV0 as stable, so look for that
shortly in trunk and 3.9.

As previously mentioned, please refrain from changing the Java
version in trunk (kafka 4.0) until we get an RC out. (However, please do
continue working on your 4.0 features and other refactors in trunk, even if
they don't apply to 3.9!)

Thanks to everyone who has worked on this release, and thanks for
your patience. I do believe we will deliver on the promise of a
much-shorter-than-usual release cycle, even with the 2 week delay.

best,
Colin