From 8c4a58f035f0d52e36aaba5ae1cf04049ae3dd9c Mon Sep 17 00:00:00 2001
From: maoling <maoling@apache.org>
Date: Tue, 20 Feb 2024 15:32:28 +0100
Subject: [PATCH] Remove redundant code in StorageProxy#sendToHintedReplicas

patch by Ling Mao; reviewed by Stefan Miklosovic, Brandon Williams and Maxwell Guo for CASSANDRA-19412
---
 CHANGES.txt                                             | 1 +
 src/java/org/apache/cassandra/service/StorageProxy.java | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index c02043be1a..86b6c18274 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 4.0.13
+ * Remove redundant code in StorageProxy#sendToHintedReplicas (CASSANDRA-19412)
  * Remove bashisms for mx4j tool in cassandra-env.sh (CASSANDRA-19416)
  * Add new concurrent_merkle_tree_requests config property to prevent OOM during multi-range and/or multi-table repairs (CASSANDRA-19336)
 Merged from 3.11:
diff --git a/src/java/org/apache/cassandra/service/StorageProxy.java b/src/java/org/apache/cassandra/service/StorageProxy.java
index c783caf79c..3e4292ae7b 100644
--- a/src/java/org/apache/cassandra/service/StorageProxy.java
+++ b/src/java/org/apache/cassandra/service/StorageProxy.java
@@ -1367,8 +1367,6 @@ public class StorageProxy implements StorageProxyMBean
         Replica localReplica = null;
         Collection<Replica> endpointsToHint = null;
 
-        List<InetAddressAndPort> backPressureHosts = null;
-
         for (Replica destination : plan.contacts())
         {
             checkHintOverload(destination);
@@ -1408,11 +1406,6 @@ public class StorageProxy implements StorageProxyMBean
 
                         messages.add(destination);
                     }
-
-                    if (backPressureHosts == null)
-                        backPressureHosts = new ArrayList<>(plan.contacts().size());
-
-                    backPressureHosts.add(destination.endpoint());
                 }
             }
             else