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Posted to jira@kafka.apache.org by "dbottini2 (via GitHub)" <gi...@apache.org> on 2026/05/11 08:52:38 UTC
[PR] docs: Document actual ProducerRecord default partitioner strategy [kafka]
dbottini2 opened a new pull request, #22253:
URL: https://github.com/apache/kafka/pull/22253
Since Kafka 2.4, the default partitioning strategy when producing records has been a Sticky strategy that allows for batch + linger configurations; and with recent evolutions around adaptive partitioning and rack awareness. References to round robin as the default are incorrect and misleading.
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Re: [PR] docs: Document actual ProducerRecord default partitioner strategy [kafka]
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github-actions[bot] commented on PR #22253:
URL: https://github.com/apache/kafka/pull/22253#issuecomment-4484392133
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Re: [PR] docs: Document actual ProducerRecord default partitioner strategy [kafka]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #22253:
URL: https://github.com/apache/kafka/pull/22253#issuecomment-6307501443
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Re: [PR] docs: Document actual ProducerRecord default partitioner strategy [kafka]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #22253:
URL: https://github.com/apache/kafka/pull/22253#issuecomment-6379225442
A label of 'needs-attention' was automatically added to this PR in order to raise the
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Re: [PR] docs: Document actual ProducerRecord default partitioner strategy [kafka]
Posted by "chia7712 (via GitHub) via jira" <ji...@kafka.apache.org>.
chia7712 commented on code in PR #22253:
URL: https://github.com/apache/kafka/pull/22253#discussion_r4516416713
##########
clients/src/main/java/org/apache/kafka/clients/producer/ProducerRecord.java:
##########
@@ -28,7 +28,9 @@
* <p>
* If a valid partition number is specified that partition will be used when sending the record. If no partition is
* specified but a key is present a partition will be chosen using a hash of the key. If neither key nor partition is
- * present a partition will be assigned in a round-robin fashion. Note that partition numbers are 0-indexed.
+ * present a partition will be assigned utilizing the {@link org.apache.kafka.clients.producer.Partitioner}
Review Comment:
The default logic depends on the `BuiltInPartitioner`, right?
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