ryerraguntla commented on code in PR #4401:
URL: https://github.com/apache/iggy/pull/4401#discussion_r4180755700


##########
gateways/kafka/src/group/mod.rs:
##########
@@ -451,6 +489,38 @@ impl GroupCoordinator {
         state::leave_step(&mut groups, request, Instant::now())
     }
 
+    /// Snapshot of each distinct group, in first-seen order. `None` means the 
group is not here.
+    ///
+    /// Ids are deduped before the lock is taken. Under the lock each 
remaining group is ticked
+    /// once and, when the encoded response fits `max_frame_size`, snapshotted 
once. Encoding
+    /// happens after this returns. `ExceedsFrame` means the lengths already 
stored would not
+    /// fit, and no member snapshot was built.
+    pub async fn describe_groups(
+        &self,
+        group_ids: &[StrBytes],
+        version: i16,
+        max_frame_size: usize,
+    ) -> DescribeGroupsView {
+        let group_ids = distinct_group_ids(group_ids);

Review Comment:
   Fixed



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