db/proxy: make connect errors during startup non-fatal

NEWS

@@ -3,6 +3,7 @@ ver 0.20.3 (not yet released)
   - "playlistadd" creates new playlist if it does not exist, as documented
 * database
   - proxy: fix error "terminate called after throwing ..."
+  - proxy: make connect errors during startup non-fatal
 * replay gain: don't reset ReplayGain levels when unpausing playback
 * silence surround channels when converting from stereo
 * use shortcuts such as "dsd64" in log messages

src/db/plugins/ProxyDatabasePlugin.cxx

@@ -346,9 +346,15 @@ ProxyDatabase::Create(EventLoop &loop, DatabaseListener &listener,
 void
 ProxyDatabase::Open()
 {
-	Connect();
-
 	update_stamp = 0;
+
+	try {
+		Connect();
+	} catch (const std::runtime_error &error) {
+		/* this error is non-fatal, because this plugin will
+		   attempt to reconnect again automatically */
+		LogError(error);
+	}
 }
 
 void