TEJAL ADSUL created KAFKA-8592:
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Summary: Broker Dynamic Configuration fails to resolve variables
as per KIP-421
Key: KAFKA-8592
URL: https://issues.apache.org/jira/browse/KAFKA-8592
Project: Kafka
Issue Type: Bug
Components: config
Affects Versions: 2.3.0
Reporter: TEJAL ADSUL
Fix For: 2.3.1
In add/alter new configs for DynamicConfigs it does not go through the
KafkaConfig
eg: bin/kafka-configs --bootstrap-server localhost:9092 --entity-type brokers
--entity-name 0 --alter --add-config log.cleaner.threads=2
However the bootstrap-server localhost is parsed through the kafkaConfig to
create the adminClient but not the log.cleaner.thread.
As the configs are not parsed using the KafkaConfig if we pass variables in
configs they are bot resolved at run time.
In order to resolve the variables in alterConfig/addConfigs flow we need to
parse the new configs using KafkaConfig before they are parsed.
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