From b29456c8e5914469ea5404c02487c31427254fa0 Mon Sep 17 00:00:00 2001
From: Oleg Saprykin <oleg.saprykin@flant.com>
Date: Fri, 20 Mar 2026 18:27:46 +0300
Subject: [PATCH] fix: catch stop() already called on concurrent 429s

Multiple concurrent requests can receive 429 simultaneously, causing
stop() to be called on an already-stopped limiter. Add .catch() to
prevent unhandled rejection.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 open-sse/services/rateLimitManager.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/open-sse/services/rateLimitManager.ts b/open-sse/services/rateLimitManager.ts
index 3d8facc53d..d7cebc4935 100644
--- a/open-sse/services/rateLimitManager.ts
+++ b/open-sse/services/rateLimitManager.ts
@@ -352,7 +352,7 @@ export function updateFromHeaders(provider, connectionId, headers, status, model
     // After stop, delete from Map so getLimiter() creates a fresh instance.
     limiter.stop({ dropWaitingJobs: true }).then(() => {
       limiters.delete(limiterKey);
-    });
+    }).catch(() => {});
     return;
   }