finally, minimal config is working :)

lib/processors/mariadb.py

@@ -6,7 +6,7 @@ from lib.processors.processor import Processor
 
 
 class MariadbProcessor(Processor):
-    def __init__(self):
+    def __init__(self, **kwargs):
         pass
 
 

lib/processors/mongodb.py

@@ -6,7 +6,7 @@ from lib.processors.processor import Processor
 
 
 class MongodbProcessor(Processor):
-    def __init__(self):
+    def __init__(self, **kwargs):
         pass
 
 

lib/processors/processor.py

@@ -4,5 +4,5 @@ The processor class for postprocessing polled data.
 
 
 class Processor:
-    def __init__(self):
+    def __init__(self, **kwargs):
         pass

lib/processors/syslog.py

@@ -6,7 +6,7 @@ from lib.processors.processor import Processor
 
 
 class SyslogProcessor(Processor):
-    def __init__(self):
+    def __init__(self, **kwargs):
         pass