From 3980446058ea3e112aae1890339b927c448f256d Mon Sep 17 00:00:00 2001
From: Leon Tan <leon.tan@dfinity.org>
Date: Wed, 17 Jan 2024 16:20:48 +0000
Subject: [PATCH] chore(consensus): Return earlier in QueryStatsPayloadBuilder
 if there are no messages

---
 rs/query_stats/src/payload_builder.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rs/query_stats/src/payload_builder.rs b/rs/query_stats/src/payload_builder.rs
index c45743cfd9f..06860bca30f 100644
--- a/rs/query_stats/src/payload_builder.rs
+++ b/rs/query_stats/src/payload_builder.rs
@@ -182,7 +182,11 @@ impl QueryStatsPayloadBuilderImpl {
             .iter()
             .filter(|stats| !previous_ids.contains(&stats.canister_id))
             .cloned()
-            .collect();
+            .collect::<Vec<_>>();
+
+        if messages.is_empty() {
+            return vec![];
+        }
 
         self.metrics
             .query_stats_payload_builder_current_epoch