Federico Valeri created KAFKA-15537: ---------------------------------------
Summary: Unsafe metadata.version downgrade is not supported Key: KAFKA-15537 URL: https://issues.apache.org/jira/browse/KAFKA-15537 Project: Kafka Issue Type: Bug Reporter: Federico Valeri In KIP-778 we introduced the "unsafe" downgrade functionality in case one of the metadata versions between current and target have changes, as defined in MetadataVersion. This is a lossy downgrade where each node rebuilds its metadata snapshots, omitting the new metadata fields. Currently, this is not supported, as shown by the following command. {code} bin/kafka-features.sh --bootstrap-server :9092 downgrade --metadata 3.4 --unsafe Could not downgrade metadata.version to 8. Invalid metadata.version 8. Unsafe metadata downgrade is not supported in this version. 1 out of 1 operation(s) failed. {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)