Aishwarya Gune created KAFKA-9593:
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Summary: Kafka config allows updating a nonexistent config and
makes it mandatory to specify the config for further config updates
Key: KAFKA-9593
URL: https://issues.apache.org/jira/browse/KAFKA-9593
Project: Kafka
Issue Type: Bug
Reporter: Aishwarya Gune
When using kafka-config script to update config, attempt to update a
non-existing config goes through. For example -
./bin/kafka-configs.sh --bootstrap-server localhost:9092 --alter --add-config
'log.cleaner.threads.config=50' --entity-default --entity-type brokers
The correct config name is - `log.cleaner.threads`.
Following the above command, if the correct config is to be updated it hits the
following issue -
```All sensitive broker config entries must be specified for --alter, missing
entries: Set(log.cleaner.threads.config)```
One way to update this config now is to specify the incorrect config too -
```Aishwarya-Gunes-MBP13:kafka aishwarya.gune$ ./bin/kafka-configs.sh
--bootstrap-server localhost:9092 --alter --add-config
'log.cleaner.threads=2,log.cleaner.threads.config=30' --entity-default
--entity-type brokers```
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