[GitHub] [kafka] hachikuji commented on a change in pull request #9996: KAFKA-12249: KIP-500 - Add client-side Decommission Broker RPC

[GitBox]

hachikuji commented on a change in pull request #9996:
URL: https://github.com/apache/kafka/pull/9996#discussion_r568200014



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File path: clients/src/main/java/org/apache/kafka/common/protocol/ApiKeys.java
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@@ -98,7 +98,8 @@
     UPDATE_FEATURES(ApiMessageType.UPDATE_FEATURES, false, true),
     ENVELOPE(ApiMessageType.ENVELOPE, true, RecordBatch.MAGIC_VALUE_V0, false, 
true),
     FETCH_SNAPSHOT(ApiMessageType.FETCH_SNAPSHOT, false, 
RecordBatch.MAGIC_VALUE_V0, false, true),
-    DESCRIBE_CLUSTER(ApiMessageType.DESCRIBE_CLUSTER);
+    DESCRIBE_CLUSTER(ApiMessageType.DESCRIBE_CLUSTER),
+    DECOMMISSION_BROKER(ApiMessageType.DECOMMISSION_BROKER, false, 
RecordBatch.MAGIC_VALUE_V0, true, true);

Review comment:
       You are right that only the controller can properly handle it, but the 
broker needs to be able to forward it, so it must also expose it.




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