From 10174e1114dc69a8764af527503223654abd47f7 Mon Sep 17 00:00:00 2001
From: Yuhao Yang <47235274+yhyang201@users.noreply.github.com>
Date: Mon, 5 Jan 2026 14:05:39 +0800
Subject: [PATCH] Revert "[grpc] update api to scheduler in grpc request
 manager" (#16387)

---
 python/sglang/srt/grpc/grpc_request_manager.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/python/sglang/srt/grpc/grpc_request_manager.py b/python/sglang/srt/grpc/grpc_request_manager.py
index 89f32b3a1..cc1e9f64a 100644
--- a/python/sglang/srt/grpc/grpc_request_manager.py
+++ b/python/sglang/srt/grpc/grpc_request_manager.py
@@ -8,7 +8,6 @@ import copy
 import dataclasses
 import logging
 import os
-import pickle
 import signal
 import sys
 import threading
@@ -801,9 +800,7 @@ class GrpcRequestManager:
     async def _send_to_scheduler(self, obj):
         """Send an object to the scheduler via ZMQ."""
         try:
-            self.send_to_scheduler.send_multipart(
-                [b"NORM", pickle.dumps(obj)], copy=False
-            )
+            self.send_to_scheduler.send_pyobj(obj)
         except Exception as e:
             logger.error(f"Failed to send to scheduler: {e}")
             raise