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https://issues.apache.org/jira/browse/KAFKA-18171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17915718#comment-17915718
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Pranav Kumar Tiwari commented on KAFKA-18171:
---------------------------------------------
[~beatrizrodrigues]
[~nadinaf]
I am investigating the issue.
Thank you!
> Unexpected Change in bootstrap.servers Behavior After Upgrade to 3.8.0
> ----------------------------------------------------------------------
>
> Key: KAFKA-18171
> URL: https://issues.apache.org/jira/browse/KAFKA-18171
> Project: Kafka
> Issue Type: Bug
> Components: config
> Affects Versions: 3.8.0
> Environment: Operating system: windows 11
> Kafka Version: 3.8.0
> Previous Version: 3.7.0
> Configuration:
> - `bootstrap.servers: "140.2.15.25:9092 140.2.15.26:9092
> 140.2.15.27:9092"`
> Reporter: Beatriz Aparecida de Freitas Rodrigues
> Assignee: Pranav Kumar Tiwari
> Priority: Major
>
> After upgrading from Kafka version *3.7.0* to 3.8.0, I encountered an issue
> with the configuration of the `bootstrap.servers` property.
> In previous versions, it was possible to configure the `bootstrap.servers`
> with space-separated URLs, like this:
> {code:java}
> bootstrap.servers: "140.2.15.25:9092 140.2.15.26:9092 140.2.15.27:9092"
> {code}
>
> However, with version {*}3.8.0{*}, this configuration results in the
> following exception:
>
> {code:java}
> org.apache.kafka.common.config.ConfigException: Invalid url in
> bootstrap.servers: 140.2.15.25:9092 140.2.15.26:9092 140.2.15.27:9092 {code}
>
>
> The configuration only works correctly if the URLs are separated by commas,
> as shown below:
>
> {code:java}
> bootstrap.servers: "140.2.15.25:9092,140.2.15.26:9092,140.2.15.27:9092" {code}
>
>
> This behavior appears to be a change from previous versions where
> space-separated URLs were accepted.
> *Reproducible Example:*
> To demonstrate the issue, I created a minimal project that reproduces the
> problem. You can find it here:
> [GitHub Repository|https://github.com/BeatrizRodrigues/kafka-config-test]
> *Question:*
> Is this the expected behavior for version *3.8.0* ? Was support for
> space-separated `bootstrap.servers` values intentionally deprecated, or is
> this a bug introduced in the latest release?
> Looking forward to clarification on whether this is an intentional change or
> a bug. Thank you!
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