mingyen066 opened a new pull request, #18740: URL: https://github.com/apache/kafka/pull/18740
Revert the stricter configuration validation changes(#16048, #16319) that broke compatibility when used pass space-separated broker list with version >= 3.8 In before, the space-separated broker list will be parsed as Arraylist with single string instead of three string. Then the single string will pass `getHost` function and get only the first broker. After we apply stricker configuration, this space separated broker will introduce exception. ### Why when the space separated broker list is provided, only the first broker is used 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
