chia7712 commented on code in PR #19070:
URL: https://github.com/apache/kafka/pull/19070#discussion_r1976527577


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metadata/src/main/java/org/apache/kafka/controller/ConfigurationControlManager.java:
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@@ -339,6 +339,8 @@ private ApiError validateAlterConfig(
                 return DISALLOWED_CLUSTER_MIN_ISR_REMOVAL_ERROR;
             } else if (configRecord.value() == null) {
                 allConfigs.remove(configRecord.name());
+            } else if (configRecord.value().length() > Short.MAX_VALUE) {
+                return DISALLOWED_CONFIG_VALUE_SIZE_ERROR;

Review Comment:
   Could you please add comments explaining why we handle this individually?



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