do not exit if unable to load markov data

server/djrandom/frontend/frontend.py

@@ -26,7 +26,11 @@ def run_frontend(port, solr_url, db_url, lastfm_api_key, album_art_dir,
     svcs['album_images'] = AlbumImageRetriever(lastfm_api_key, album_art_dir)
     svcs['mailer'] = Mailer(email_sender)
     svcs['markov'] = MarkovModel()
+    try:
         svcs['markov'].load(markov_data_file)
+    except IOError, e:
+        log.error('Could not read Markov data from %s: %s' % (
+                markov_data_file, str(e)))
 
     http_server = WSGIServer(('0.0.0.0', port), app)
     http_server.serve_forever()