Christo Lolov created KAFKA-17579:
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             Summary: Dynamic LogCleaner configurations are not picked up upon 
restart
                 Key: KAFKA-17579
                 URL: https://issues.apache.org/jira/browse/KAFKA-17579
             Project: Kafka
          Issue Type: Bug
            Reporter: Christo Lolov


Dynamic configurations for the LogCleaner are not applied upon a restart.

 

Reproduction steps:
 # Create a 1-broker cluster
 # Change the number of log.cleaner.threads to 2
 # Bounce the broker
 # Observe the server.logs - you will notice that only 1 log cleaner thread has 
been instantiated

 

Proposed solution:
 # Change immutable variables `val` to methods `def`
 # Add unit/integration tests which test reconfiguration of the LogCleaner



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