1996fanrui commented on code in PR #729:
URL: 
https://github.com/apache/flink-kubernetes-operator/pull/729#discussion_r1423772255


##########
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/controller/FlinkResourceContext.java:
##########
@@ -65,7 +66,9 @@ public KubernetesJobAutoScalerContext 
getJobAutoScalerContext() {
     }
 
     private KubernetesJobAutoScalerContext createJobAutoScalerContext() {
-        Configuration conf = new Configuration(getObserveConfig());
+        Configuration conf =
+                new KeyMigratingConfiguration(
+                        AutoScalerOptions.LEGACY_CONF_PREFIX, 
getObserveConfig());

Review Comment:
   How about traversing the `getObserveConfig()` and put all keys and values to 
a new Configuration? We can removing the prefix directly during traversing.
   
   If so, we don't need to introduce the `KeyMigratingConfiguration` class.



##########
flink-autoscaler/src/main/java/org/apache/flink/autoscaler/config/AutoScalerOptions.java:
##########
@@ -46,107 +45,93 @@ private static ConfigOptions.OptionBuilder 
autoScalerConfig(String key) {
             autoScalerConfig("enabled")
                     .booleanType()
                     .defaultValue(false)
-                    .withFallbackKeys(oldOperatorConfigKey("enabled"))

Review Comment:
   Do we need to remove it? I'm not sure should we keep it to let old users 
know it.



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