dataroaring commented on PR #53144:
URL: https://github.com/apache/doris/pull/53144#issuecomment-3712268472

   **Follow-up on `send_error()` missing `finish_send_reply()`:**
   
   After deeper investigation, this is **NOT a bug**. Here's why:
   
   1. `StreamLoadAction` inherits from `HttpHandler` (not `HttpHandlerWithAuth`)
   2. `StreamLoadAction` never calls `send_error()` - it uses its own 
`_send_reply()` method for all error paths
   3. `mark_send_reply()` is only called in `StreamLoadAction::on_header()`, 
marking it as `REPLY_ASYNC`
   4. Other handlers (like `HttpHandlerWithAuth`) that use `send_error()` never 
call `mark_send_reply()`, so they stay in default `REPLY_SYNC` mode
   5. In `REPLY_SYNC` mode, `wait_finish_send_reply()` returns immediately 
without waiting
   
   Therefore, `send_error()` doesn't need `finish_send_reply()` because it's 
never called from an async reply context. The code is correct as-is.


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