mingyen066 opened a new pull request, #18741: URL: https://github.com/apache/kafka/pull/18741
Revert the stricter configuration validation changes(#16048, #16319) that broke compatibility when used pass space-separated broker list with version >= 3.8 Previously, a space-separated broker list would be parsed as an ArrayList containing a single string instead of three separate strings. The single string would then pass through the `getHost` function, which would extract only the first broker. After applying stricter configuration validation, using a space-separated broker list results in an exception. #### Why when the space separated broker list is provided, only the first broker is parsed as ArrayList with single string element Because we define the type of bootstrap server config as List, and List config will be parsed using comma separated pattern * https://github.com/apache/kafka/blob/0534e42c39749cccaf35bce6006faeeea0fbfc64/clients/src/main/java/org/apache/kafka/clients/producer/ProducerConfig.java#L367 * https://github.com/apache/kafka/blob/d5e270482cf6601e1b635d69d311957e84d6bb59/clients/src/main/java/org/apache/kafka/common/config/ConfigDef.java#L762 ### Committer Checklist (excluded from commit message) - [ ] Verify design and implementation - [ ] Verify test coverage and CI build status - [ ] Verify documentation (including upgrade notes) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
