From 0602149c527a4eb477abd796c11a65ec41e23bb9 Mon Sep 17 00:00:00 2001
From: Chris Eager <chris@signal.org>
Date: Thu, 5 Sep 2024 18:38:30 -0500
Subject: [PATCH] Skip removeRecipientViewFromMrmData pipeline if there are no
 keys

---
 .../whispersystems/textsecuregcm/storage/MessagesCache.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/MessagesCache.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/MessagesCache.java
index 387b2993e..40ea5d372 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/MessagesCache.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/MessagesCache.java
@@ -472,6 +472,10 @@ public class MessagesCache extends RedisClusterPubSubAdapter<String, String> imp
   void removeRecipientViewFromMrmData(final List<byte[]> sharedMrmKeys, final UUID accountUuid,
       final byte deviceId) {
 
+    if (sharedMrmKeys.isEmpty()) {
+      return;
+    }
+
     final Timer.Sample sample = Timer.start();
     Flux.fromIterable(sharedMrmKeys)
         .collectMultimap(SlotHash::getSlot)