Collector registry, fixes/optimizations

mktxp/collector/pool_collector.py

@@ -22,6 +22,9 @@ class PoolCollector(BaseCollector):
     '''    
     @staticmethod
     def collect(router_entry):
+        if not router_entry.config_entry.pool:
+            return
+
         # initialize all pool counts, including those currently not used
         pool_records = PoolMetricsDataSource.metric_records(router_entry, metric_labels = ['name'])   
         if pool_records: