TengYao Chi created KAFKA-18856: ----------------------------------- Summary: 3.9 broker unable to join dynamic quorum with 4.0 controller Key: KAFKA-18856 URL: https://issues.apache.org/jira/browse/KAFKA-18856 Project: Kafka Issue Type: Improvement Reporter: TengYao Chi Assignee: TengYao Chi
error message: {code:java} [2025-02-24 23:13:21,271] ERROR Encountered metadata loading fault: Unhandled error initializing new publishers (org.apache.kafka.server.fault.LoggingFaultHandler) org.apache.kafka.image.writer.UnwritableMetadataException: Metadata has been lost because the following could not be represented in metadata.version 3.0-IV1: feature flag(s): group.version, transaction.version at org.apache.kafka.image.writer.ImageWriterOptions.handleLoss(ImageWriterOptions.java:94) at org.apache.kafka.image.FeaturesImage.handleFeatureLevelNotSupported(FeaturesImage.java:108) at org.apache.kafka.image.FeaturesImage.write(FeaturesImage.java:88) at org.apache.kafka.image.MetadataImage.write(MetadataImage.java:153) at org.apache.kafka.image.loader.MetadataLoader.initializeNewPublishers(MetadataLoader.java:296) at org.apache.kafka.image.loader.MetadataLoader.lambda$scheduleInitializeNewPublishers$0(MetadataLoader.java:267) at org.apache.kafka.queue.KafkaEventQueue$EventContext.run(KafkaEventQueue.java:132) at org.apache.kafka.queue.KafkaEventQueue$EventHandler.handleEvents(KafkaEventQueue.java:215) at org.apache.kafka.queue.KafkaEventQueue$EventHandler.run(KafkaEventQueue.java:186) at java.base/java.lang.Thread.run(Thread.java:1583) ^C[2025-02-24 23:13:21,658] INFO Terminating process due to signal SIGINT (org.apache.kafka.common.utils.LoggingSignalHandler) [2025-02-24 23:13:21,660] INFO App info kafka.server for 2 unregistered (org.apache.kafka.common.utils.AppInfoParser) {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)