From 699b884441b3b24c227669f0def265b01ebc46e7 Mon Sep 17 00:00:00 2001
From: Justin Baur <19896123+justindbaur@users.noreply.github.com>
Date: Fri, 15 Dec 2023 09:58:32 -0500
Subject: [PATCH] Catch redis connection exception (#3582)

* Handle RedisConnectionException

* Log warning on exception
---
 src/Core/Utilities/CustomRedisProcessingStrategy.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Core/Utilities/CustomRedisProcessingStrategy.cs b/src/Core/Utilities/CustomRedisProcessingStrategy.cs
index fd7cb75ba7..d3883f701f 100644
--- a/src/Core/Utilities/CustomRedisProcessingStrategy.cs
+++ b/src/Core/Utilities/CustomRedisProcessingStrategy.cs
@@ -66,9 +66,10 @@ public class CustomRedisProcessingStrategy : RedisProcessingStrategy
         {
             return await base.ProcessRequestAsync(requestIdentity, rule, counterKeyBuilder, rateLimitOptions, cancellationToken);
         }
-        catch (RedisTimeoutException)
+        catch (Exception ex) when (ex is RedisTimeoutException || ex is RedisConnectionException)
         {
-            // If this is the first timeout we've had, start a new counter and sliding window 
+            _logger.LogWarning(ex, "Redis appears down, skipping rate limiting");
+            // If this is the first timeout/connection error we've had, start a new counter and sliding window 
             timeoutCounter ??= new TimeoutCounter()
             {
                 Count = 0,