[jira] [Created] (KAFKA-9593) Kafka config allows updating a nonexistent config and makes it mandatory to specify the config for further config updates

["Aishwarya Gune (Jira)" <ji...@apache.org>]

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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