Log when voting and warn if voting with more than one account (#2489)

* Log about voting and the number of representatives configured

* Fix stream

* Clarify stdout message

nano/nano_node/daemon.cpp

@@ -62,7 +62,11 @@ void nano_daemon::daemon::run (boost::filesystem::path const & data_path, nano::
 				          << "Path: " << node->application_path.string () << "\n"
 				          << "Build Info: " << BUILD_INFO << "\n"
 				          << "Database backend: " << node->store.vendor_get () << std::endl;
-
+				auto voting (node->wallets.rep_counts ().voting);
+				if (voting > 1)
+				{
+					std::cout << "Voting with more than one representative can limit performance: " << voting << " representatives are configured" << std::endl;
+				}
 				node->start ();
 				nano::ipc::ipc_server ipc_server (*node, config.rpc);
 #if BOOST_PROCESS_SUPPORTED

nano/node/node.cpp

@@ -382,6 +382,22 @@ startup_time (std::chrono::steady_clock::now ())
 			std::exit (1);
 		}
 
+		if (config.enable_voting)
+		{
+			std::ostringstream stream;
+			stream << "Voting is enabled, more system resources will be used";
+			auto voting (wallets.rep_counts ().voting);
+			if (voting > 0)
+			{
+				stream << ". " << voting << " representative(s) are configured";
+				if (voting > 1)
+				{
+					stream << ". Voting with more than one representative can limit performance";
+				}
+			}
+			logger.always_log (stream.str ());
+		}
+
 		node_id = nano::keypair ();
 		logger.always_log ("Node ID: ", node_id.pub.to_node_id ());