[dependabot]

Bumps github.com/twmb/franz-go/pkg/kadm from 1.19.0 to 1.20.0.

Changelog

Sourced from github.com/twmb/franz-go/pkg/kadm's changelog.

v1.20.0

This is a comparatively small minor release that adds support for Kafka 4.1, adds three new APIs, fixes four bugs (read below to gauge importance), has a few improvements, and switches the client from a default of 0ms linger to a default of 10ms linger.

Also of note: a new srfake package has been created so you can run a fake Schema Registry server in your CI tests (thank you @​weeco). This complements the existing kfake package that allows you to run a fake in-memory Kafka "cluster" for unit testing. If you did not know of either of these, check them out! kfake supports many Kafka features, but transactions are still WIP. All franz-go tests except transaction based tests pass against a kfake "cluster", so odds are, it'll work for you.

There are a few external contributors this release to features, docs, bugs, and internal improvements. If I do not call you out below directly, please know I'm thankful for your contributions!

Behavior changes

• This library now lingers by default for 10ms. You can switch back to 0ms lingering by adding kgo.ProducerLinger(0) to your options when initializing the client. The original theory for 0ms linger was more of a theory, and years of practice has shown that even a tiny linger can be beneficial to the throughput and batching of clients. See #1072 for more details.

Bug fixes

• Metadata refreshes could panic if a very specific flow of events happened, specifically only on a cluster that is transitioning from not using topic IDs to using topic IDs, and only if the transition is not implemented 100% correctly. This bug has existed for years and was only encountered during the recent addition of topic IDs to Redpanda. See 645f1126 for more details.

• The loop that determines whether more batches exist to be produced had its conditional backwards. This was hidden forever due to other minor logic flaws that caused the "do more batches exist?" check to occur more than it should have, so the bug caused no problems. The "do more batches exist?" checks have been improved and the conditional has been fixed.

• The internal linger timers fired way more than they needed to, causing batches to be cut WAY more frequently than they needed to when using lingering. The logic here has been fixed, so lingering should actually run its full time now and batches should be bigger.

• Azure resets connections when speaking ApiVersions v4. v1.19 of this library detected this resetting and after 3 attempts, downgrades to ApiVersions v3.

... (truncated)

Commits

• e77393c Merge pull request #1135 from twmb/test_robust
• 8afcf08 TestConsumeRegex: make even more robust
• eee0795 Merge pull request #1134 from twmb/cl_typo
• 6e9ab9f CHANGELOG: typo, ext contrib note
• 4402371 Merge pull request #1133 from twmb/cl
• d7b6fa2 CHANGELOG: note incoming v1.20.0
• 523379f README: note new kips
• d3aa863 list groups: note more group states
• 3916fa0 Merge pull request #1132 from twmb/deps
• e1d09e0 franz-go: bump deps
• Additional commits viewable in compare view

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