[PD Disaggregation] Support PD deployment of DeepSeekv3. (#5251)

* Support deepseekv3 cache transfer for PD deploy

* clean some log info

---------

Co-authored-by: K11OntheBoat <“ruianmaidanglao@163.com”>

fastdeploy/cache_manager/transfer_factory/rdma_cache_transfer.py

@@ -40,11 +40,10 @@ class RDMACommManager:
         try:
             import rdma_comm
         except:
-            logger.error(
+            raise RuntimeError(
                 "The installation of the RDMA library failed."
                 "Confirm whether your network card supports RDMA transmission."
             )
-            return
         self.messager = rdma_comm.RDMACommunicator(
             splitwise_role,
             gpu_id,