[OAI] patch origin request_id logic (#7508)

python/sglang/srt/managers/io_struct.py

@@ -319,8 +319,16 @@ class GenerateReqInput:
         """Normalize request IDs for batch processing."""
         if self.rid is None:
             self.rid = [uuid.uuid4().hex for _ in range(num)]
-        elif not isinstance(self.rid, list):
-            raise ValueError("The rid should be a list for batch processing.")
+        elif isinstance(self.rid, str):
+            new_rids = [f"{self.rid}_{i}" for i in range(num)]
+            self.rid = new_rids
+        elif isinstance(self.rid, list):
+            if len(self.rid) != num:
+                raise ValueError(
+                    "The specified rids length mismatch with the batch_size for batch processing."
+                )
+        else:
+            raise ValueError("The rid should be a string or a list of strings.")
 
     def _normalize_logprob_params(self, num):
         """Normalize logprob-related parameters for batch processing."""