[
https://issues.apache.org/jira/browse/KAFKA-20518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alan Lau reassigned KAFKA-20518:
--------------------------------
Assignee: Alan Lau
> Allow configuring a default StreamPartitioner
> ---------------------------------------------
>
> Key: KAFKA-20518
> URL: https://issues.apache.org/jira/browse/KAFKA-20518
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Stef Noten
> Assignee: Alan Lau
> Priority: Minor
>
> Similar to configuring the default {{{}Serde{}}}s, it would be useful to be
> able to configure a default {{{}StreamPartitioner{}}}.
> Often, you want to treat certain keys always in the same manner. Currently
> such a decision translates into configuration of the partitioner on every
> possible operation, e.g. with foreign-key joins or groupings. Moreover, many
> automatic repartitions are subtly triggered downstream by making a small
> change upstream (e.g. changing {{processValues}} to a {{{}process{}}}). It's
> easy to make mistakes against this, especially as it's also not possible to
> verify partitioning with {{TopologyTestDriver}} nor with validations on the
> {{{}TopologyDescription{}}}.
> An example: in our application we have many composite record keys, which
> should always be partitioned by the first part. With a default partitioner,
> it would be possible to do automatic correct partitioning by e.g. key class
> type, annotation, implementing an interface, ...
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
