It's easier to tell what's going on with thread names

sbws/config.log.default.ini

@@ -37,7 +37,7 @@ level = DEBUG
 
 # verbose formatter useful for debugging
 [formatter_sbwsdebug]
-format = %(asctime)s %(levelname)s %(thread)d %(filename)s:%(lineno)s - %(funcName)s - %(message)s
+format = %(asctime)s %(levelname)s %(threadName)s %(filename)s:%(lineno)s - %(funcName)s - %(message)s
 datefmt = %Y-%m-%d %H:%M:%S
 
 # for logging to system log