Fix logging

nano/lib/utility.cpp

@@ -35,7 +35,7 @@ void nano::set_file_descriptor_limit (std::size_t limit)
 	rlimit fd_limit{};
 	if (-1 == getrlimit (RLIMIT_NOFILE, &fd_limit))
 	{
-		std::cerr << "Unable to get current limits for the number of open file descriptors: " << std::strerror (errno);
+		std::cerr << "WARNING: Unable to get current limits for the number of open file descriptors: " << std::strerror (errno);
 		return;
 	}
 
@@ -47,7 +47,7 @@ void nano::set_file_descriptor_limit (std::size_t limit)
 	fd_limit.rlim_cur = std::min (static_cast<rlim_t> (limit), fd_limit.rlim_max);
 	if (-1 == setrlimit (RLIMIT_NOFILE, &fd_limit))
 	{
-		std::cerr << "Unable to set limits for the number of open file descriptors: " << std::strerror (errno);
+		std::cerr << "WARNING: Unable to set limits for the number of open file descriptors: " << std::strerror (errno);
 		return;
 	}
 #endif

nano/nano_node/daemon.cpp

@@ -103,6 +103,7 @@ void nano::daemon::run (std::filesystem::path const & data_path, nano::node_flag
 
 		// Print info about number of logical cores detected, those are used to decide how many IO, worker and signature checker threads to spawn
 		logger.info (nano::log::type::daemon, "Hardware concurrency: {} ( configured: {} )", std::thread::hardware_concurrency (), nano::hardware_concurrency ());
+		logger.info (nano::log::type::daemon, "File descriptors limit: {}", nano::get_file_descriptor_limit ());
 
 		// for the daemon start up, if the user hasn't specified a port in
 		// the config, we must use the default peering port for the network

nano/nano_node/entry.cpp

@@ -64,12 +64,12 @@ int main (int argc, char * const * argv)
 	nano::set_umask (); // Make sure the process umask is set before any files are created
 	nano::logger::initialize (nano::log_config::cli_default ());
 
+	// Increase file descriptor limit
 	nano::set_file_descriptor_limit (OPEN_FILE_DESCRIPTORS_LIMIT);
 	auto const file_descriptor_limit = nano::get_file_descriptor_limit ();
-	nano::default_logger ().info (nano::log::type::daemon, "File descriptors limit: {}", file_descriptor_limit);
 	if (file_descriptor_limit < OPEN_FILE_DESCRIPTORS_LIMIT)
 	{
-		nano::default_logger ().warn (nano::log::type::daemon, "File descriptors limit is lower than the {} recommended. Node was unable to change it.", OPEN_FILE_DESCRIPTORS_LIMIT);
+		std::cerr << "WARNING: Current file descriptor limit of " << file_descriptor_limit << " is lower than the " << OPEN_FILE_DESCRIPTORS_LIMIT << " recommended. Node was unable to change it." << std::endl;
 	}
 
 	nano::node_singleton_memory_pool_purge_guard memory_pool_cleanup_guard;