bug fix mpi: cannot load chunks or templates

mpi/scanned_days_manager.py

@@ -57,10 +57,12 @@ class ScannedDaysManager(object):
     def next_to_process(self, chunk_filter = None, template_filter = None):
         chunk_to_process = self.__filter(self.to_process, chunk_filter, template_filter)
         for chunk in sorted(chunk_to_process):
-            template = next(iter( self.to_process[chunk] ))
-            self.__remove_entry(self.to_process, chunk, template)
-            self.__add_entry(self.processing, chunk, template)
-            return (chunk, template)
+            valid_templates = self.to_process[chunk] & set(template_filter)
+            if valid_templates:
+                template = next(iter(valid_templates))
+                self.__remove_entry(self.to_process, chunk, template)
+                self.__add_entry(self.processing, chunk, template)
+                return (chunk, template)
         return (None, None)
 
     def set_processed(self, chunk, template, force=False):