dajac commented on code in PR #12897:
URL: https://github.com/apache/kafka/pull/12897#discussion_r1035961196


##########
clients/src/main/java/org/apache/kafka/common/Cluster.java:
##########
@@ -253,7 +253,11 @@ public Node nodeById(int id) {
     public Optional<Node> nodeIfOnline(TopicPartition partition, int id) {
         Node node = nodeById(id);
         PartitionInfo partitionInfo = partition(partition);
-        if (node != null && partitionInfo != null && 
!Arrays.asList(partitionInfo.offlineReplicas()).contains(node)) {
+
+        if (node != null && partitionInfo != null &&
+            !Arrays.asList(partitionInfo.offlineReplicas()).contains(node) &&
+            Arrays.asList(partitionInfo.replicas()).contains(node)) {

Review Comment:
   Could we add or update a test case for this as well?



##########
clients/src/test/java/org/apache/kafka/common/requests/RequestTestUtils.java:
##########
@@ -208,10 +209,10 @@ public static MetadataResponse metadataUpdateWith(final 
String clusterId,
             for (int i = 0; i < numPartitions; i++) {
                 TopicPartition tp = new TopicPartition(topic, i);
                 Node leader = nodes.get(i % nodes.size());
-                List<Integer> replicaIds = 
Collections.singletonList(leader.id());
+                List<Integer> replicaIds = 
nodes.stream().map(Node::id).collect(Collectors.toList());

Review Comment:
   Why do we need to change this? Is it OK to change for all existing usages?



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