showuon commented on code in PR #14176:
URL: https://github.com/apache/kafka/pull/14176#discussion_r1294181153


##########
storage/src/main/java/org/apache/kafka/storage/internals/log/LogConfig.java:
##########
@@ -265,7 +266,12 @@ public Optional<String> serverConfigName(String 
configName) {
             .define(TopicConfig.LOCAL_LOG_RETENTION_MS_CONFIG, LONG, 
DEFAULT_LOCAL_RETENTION_MS, atLeast(-2), MEDIUM,
                 TopicConfig.LOCAL_LOG_RETENTION_MS_DOC)
             .define(TopicConfig.LOCAL_LOG_RETENTION_BYTES_CONFIG, LONG, 
DEFAULT_LOCAL_RETENTION_BYTES, atLeast(-2), MEDIUM,
-                TopicConfig.LOCAL_LOG_RETENTION_BYTES_DOC);
+                TopicConfig.LOCAL_LOG_RETENTION_BYTES_DOC)
+            // RemoteLogManagerConfig.REMOTE_LOG_STORAGE_SYSTEM_ENABLE_PROP is 
defined here to ensure that when system
+            // level remote storage functionality is disabled, topics cannot 
be configured to use remote storage.
+            
.defineInternal(RemoteLogManagerConfig.REMOTE_LOG_STORAGE_SYSTEM_ENABLE_PROP, 
BOOLEAN,
+                    
RemoteLogManagerConfig.DEFAULT_REMOTE_LOG_STORAGE_SYSTEM_ENABLE, null, MEDIUM,
+                    
RemoteLogManagerConfig.REMOTE_LOG_STORAGE_SYSTEM_ENABLE_DOC);

Review Comment:
   I remembered there will be cycle dependency issue there. So, if we only care 
about `REMOTE_LOG_STORAGE_SYSTEM_ENABLE_PROP` value currently, could we just 
pass that into `LogConfig.validate`? I.e. `LogConfig.validate(config, 
sysRemoteStorageEnabled)`, or like what we did now, but add one more parameter: 
   
   ```
   LogConfig.validate(config, 
kafkaConfig.map(_.extractLogConfigMap).getOrElse(Collections.emptyMap()), 
sysRemoteStorageEnabled)
   ```



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