divijvaidya commented on code in PR #13944:
URL: https://github.com/apache/kafka/pull/13944#discussion_r1261124589


##########
core/src/main/scala/kafka/server/KafkaRequestHandler.scala:
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@@ -277,6 +277,12 @@ class BrokerTopicMetrics(name: Option[String]) {
     BrokerTopicStats.TotalFetchRequestsPerSec -> 
MeterWrapper(BrokerTopicStats.TotalFetchRequestsPerSec, "requests"),
     BrokerTopicStats.FetchMessageConversionsPerSec -> 
MeterWrapper(BrokerTopicStats.FetchMessageConversionsPerSec, "requests"),
     BrokerTopicStats.ProduceMessageConversionsPerSec -> 
MeterWrapper(BrokerTopicStats.ProduceMessageConversionsPerSec, "requests"),
+    BrokerTopicStats.RemoteCopyBytesPerSec -> 
MeterWrapper(BrokerTopicStats.RemoteCopyBytesPerSec, "bytes"),
+    BrokerTopicStats.RemoteFetchBytesPerSec -> 
MeterWrapper(BrokerTopicStats.RemoteFetchBytesPerSec, "bytes"),
+    BrokerTopicStats.RemoteReadRequestsPerSec -> 
MeterWrapper(BrokerTopicStats.RemoteReadRequestsPerSec, "requests"),
+    BrokerTopicStats.RemoteWriteRequestsPerSec -> 
MeterWrapper(BrokerTopicStats.RemoteWriteRequestsPerSec, "requests"),
+    BrokerTopicStats.FailedRemoteReadRequestsPerSec -> 
MeterWrapper(BrokerTopicStats.FailedRemoteReadRequestsPerSec, "requests"),
+    BrokerTopicStats.FailedRemoteWriteRequestsPerSec -> 
MeterWrapper(BrokerTopicStats.FailedRemoteWriteRequestsPerSec, "requests"),

Review Comment:
   We at (Amazon MSK) have an implementation against the KIP-405 interfaces [1] 
and we explicitly tell the customers that the metric such as 
`RemoteBytesInPerSec` are as per KIP-405 contract. If we change the KIP now, it 
would be a break in contract for our customers. Hence, I would not be in favour 
of amending the accepted KIP at this time.
   
   [1] see: RemoteBytesInPerSec at 
https://docs.aws.amazon.com/msk/latest/developerguide/metrics-details.html



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