parallelized ix_public_peering:* redis key loading

inventory_provider/routes/classifier.py

@@ -244,10 +244,12 @@ def ix_peering_info(peer_info):
 
     r = common.get_current_redis()
 
-    for k in r.keys('ix_public_peer:*'):
-        other = r.get(k.decode('utf-8')).decode('utf-8')
-        other = json.loads(other)
+    for doc in common.load_json_docs(
+            config_params=current_app.config['INVENTORY_PROVIDER_CONFIG'],
+            key_pattern='ix_public_peer:*',
+            num_threads=10):
 
+        other = doc['value']
         if other['router'] == peer_info['router']:
             result['router'].append(other['name'])