fix tensorflow op

cpp/src/plasma/client.h

@@ -62,7 +62,7 @@ class ARROW_EXPORT PlasmaClient {
   /// \param num_retries number of attempts to connect to IPC socket, default 50
   /// \return The return status.
   Status Connect(const std::string& store_socket_name,
-                 const std::string& manager_socket_name, int release_delay = 0,
+                 const std::string& manager_socket_name = "", int release_delay = 0,
                  int num_retries = -1);
 
   /// Create an object in the Plasma Store. Any metadata for this object must be