From 018406ac75f3b6d43669dedfd71324cd9dc3fc30 Mon Sep 17 00:00:00 2001
From: martimarkov <martimarkov@users.noreply.github.com>
Date: Mon, 5 Oct 2026 19:19:02 -0400
Subject: Backport pull request #18268 from jellyfin/release-12.z

Fix off-by-one in the optimistic locking retry backoff

Original-merge: 765e09e33324b327eb67569fb0feb1124932403b

Merged-by: crobibero <cody@robibe.ro>

Backported-by: Cody Robibero <cody@robibe.ro>
---
 .../Locking/OptimisticLockBehavior.cs                                 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/Jellyfin.Database/Jellyfin.Database.Implementations/Locking/OptimisticLockBehavior.cs')

diff --git a/src/Jellyfin.Database/Jellyfin.Database.Implementations/Locking/OptimisticLockBehavior.cs b/src/Jellyfin.Database/Jellyfin.Database.Implementations/Locking/OptimisticLockBehavior.cs
index 29a073ff74..585ee82854 100644
--- a/src/Jellyfin.Database/Jellyfin.Database.Implementations/Locking/OptimisticLockBehavior.cs
+++ b/src/Jellyfin.Database/Jellyfin.Database.Implementations/Locking/OptimisticLockBehavior.cs
@@ -46,9 +46,9 @@ public class OptimisticLockBehavior : IEntityFrameworkCoreLockingBehavior
             TimeSpan.FromSeconds(3)
         ];
 
-        Func<int, Context, TimeSpan> backoffProvider = (index, context) =>
+        Func<int, Context, TimeSpan> backoffProvider = (retryNo, context) =>
         {
-            var backoff = sleepDurations[index];
+            var backoff = sleepDurations[retryNo - 1];
             return backoff + TimeSpan.FromMilliseconds(RandomNumberGenerator.GetInt32(0, (int)(backoff.TotalMilliseconds * .5)));
         };
 
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