runtime_context: record the publishing process role (#31813)

python/sglang/srt/managers/data_parallel_controller.py

@@ -815,6 +815,12 @@ def run_data_parallel_controller_process(
     kill_itself_when_parent_died()
     parent_process = psutil.Process().parent()
 
+    # Publish the resolved config at DP-controller process entry: this process
+    # reads config namespaces (e.g. get_exec().moe.*) in its own address space
+    # before spawning schedulers.
+    from sglang.srt.runtime_context import publish
+
+    publish(server_args, role="scheduler")
     configure_logger(server_args)
     if server_args.enable_trace:
         process_tracing_init(

python/sglang/srt/managers/scheduler.py

@@ -4627,6 +4627,13 @@ def run_scheduler_process(
         display_dp_rank=display_dp_rank,
         display_moe_ep_rank=display_moe_ep_rank,
     )
+    # Publish the resolved config at scheduler process entry so the config
+    # namespaces (get_serving()/get_device()/get_exec()/...) are available to
+    # Scheduler.__init__ and its init_* helpers, which read them before the
+    # model worker's own publish. ModelRunner re-publishes idempotently.
+    from sglang.srt.runtime_context import publish
+
+    publish(server_args, role="scheduler")
     parent_process = psutil.Process().parent()
 
     # Set up tracing