Aldan Brito created KAFKA-18602:
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Summary: Incorrect FinalizedVersionLevel reported for dynamic
KRaft quorum.
Key: KAFKA-18602
URL: https://issues.apache.org/jira/browse/KAFKA-18602
Project: Kafka
Issue Type: Bug
Components: controller
Affects Versions: 3.9.0
Reporter: Aldan Brito
*Environment:*
* Kafka Version: kafka_2.12-3.9.0
* Cluster Setup: 3-node KRaft controller quorum
* Configuration File: {{dynamic.prop}}
{code:java}
node.id=1
controller.quorum.bootstrap.servers=10.76.72.31:9093,10.76.72.32:9093,10.76.72.33:9093
listeners=CONTROLLER://:9093
advertised.listeners=CONTROLLER://10.76.72.31:9093
controller.listener.names=CONTROLLER {code}
h3. Steps to Reproduce
# Set up a 3-node KRaft controller quorum with the following parameters:
{{cluster_id="kr_0N6BSTUGeZdoBYBEpTQ"}}
{{controller_0_uuid="6fK9_aH-QAilLw-TBICXKw"controller_1_uuid="twtzspDcQuOneF5cTtDMjQ"controller_2_uuid="zytzspDcQuOneE5dTtDMjR"}}
# Format the storage on each controller node:
{{kafka-storage.sh format --cluster-id ${cluster_id} --initial-controllers
\"1@10.76.72.31:9093:${controller_0_uuid},2@10.76.72.32:9093:${controller_1_uuid},3@10.76.72.33:9093:${controller_2_uuid}"
\
--config config/kraft/dynamic.prop --feature kraft.version=1}}
# Start the KRaft controllers.
# Use the {{kafka-features.sh}} script to verify if the quorum is static or
dynamic:
./bin/kafka-features.sh --bootstrap-controller 10.76.72.31:9093 describe
h3. Observed Behavior
The {{FinalizedVersionLevel}} for {{kraft.version}} is reported as {{{}0{}}},
even though the established quorum is dynamic:
{{Feature: kraft.version SupportedMinVersion: 0 SupportedMaxVersion: 1
*FinalizedVersionLevel: 0* Epoch: 6Feature: metadata.version
SupportedMinVersion: 3.0-IV1 SupportedMaxVersion: 3.9-IV0
FinalizedVersionLevel: 3.9-IV0 Epoch: 6}} * Dynamic quorum operations (e.g.,
adding/removing controllers) work as expected.
* However, the verification script's output contradicts the expected behavior.
* Reference: [Apache
Kafka|https://kafka.apache.org/documentation/#static_versus_dynamic_kraft_quorums]
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