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https://issues.apache.org/jira/browse/KAFKA-13709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676675#comment-17676675
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ASF GitHub Bot commented on KAFKA-13709:
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C0urante opened a new pull request, #478:
URL: https://github.com/apache/kafka-site/pull/478
Backports the docs updates from https://github.com/apache/kafka/pull/12941
and https://github.com/apache/kafka/pull/13106 to 3.3, the version in which
KIP-618 was released and exactly-once source connectors became possible.
> Document exactly-once support for source connectors
> ---------------------------------------------------
>
> Key: KAFKA-13709
> URL: https://issues.apache.org/jira/browse/KAFKA-13709
> Project: Kafka
> Issue Type: Task
> Components: KafkaConnect
> Reporter: Chris Egerton
> Assignee: Chris Egerton
> Priority: Major
>
> Add documentation for the support for exactly-once source connectors
> introduced in
> [KIP-618|https://cwiki.apache.org/confluence/display/KAFKA/KIP-618%3A+Exactly-Once+Support+for+Source+Connectors].
> This includes but is not limited to:
> * How to safely perform a rolling upgrade to enable exactly-once source
> support for an existing cluster
> * Any new APIs that connector authors can/should leverage for their source
> connectors that need clarification beyond what can be included in a Javadoc
> (for example, how to know what to return from
> {{{}SourceConnector::exactlyOnceSupport{}}}, and an example on how to define
> custom transaction boundaries for a connector)
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