RockteMQ-AI commented on issue #2888:
URL: 
https://github.com/apache/rocketmq-dashboard/issues/2888#issuecomment-5500452491

   **Issue Evaluation**
   
   Category: `bug` | Status: **Confirmed**
   
   This is a valid race condition bug. The DLQ resend page relies on React 
state for submission guarding, allowing duplicate resend API calls when the 
user triggers the action multiple times before React commits the state update.
   
   **Root Cause:** Same pattern as #2889, #2890, and #2891 — React state 
updates are asynchronous. The resend action can be dispatched multiple times 
before the loading guard takes effect.
   **Impact:** Duplicate message resend calls to the backend; potential 
duplicate message delivery if the endpoint is not idempotent.
   **Severity:** Medium-High — duplicate message delivery in DLQ resend has 
direct data integrity implications.
   
   **Suggested fix:** Use a synchronous in-flight guard (`useRef` Set of 
pending resend IDs) checked synchronously before dispatching the API call. 
Clear on completion or error.
   
   An automated fix proposal can be generated. Reply `/approve` to proceed with 
PR generation.
   
   ---
   *Automated evaluation by github-manager*


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