diff --git a/caravel/config.py b/caravel/config.py
index 2c43513a76c1a..99b3fb1940736 100644
--- a/caravel/config.py
+++ b/caravel/config.py
@@ -132,6 +132,12 @@
 
 VIZ_TYPE_BLACKLIST = []
 
+# ---------------------------------------------------
+# List of data sources not to be refreshed in druid cluster
+# ---------------------------------------------------
+
+DRUID_DATA_SOURCE_BLACKLIST = []
+
 """
 1) http://docs.python-guide.org/en/latest/writing/logging/
 2) https://docs.python.org/2/library/logging.config.html
diff --git a/caravel/models.py b/caravel/models.py
index b934df94adbf4..49f5584d173c6 100644
--- a/caravel/models.py
+++ b/caravel/models.py
@@ -903,7 +903,8 @@ def get_datasources(self):
 
     def refresh_datasources(self):
         for datasource in self.get_datasources():
-            DruidDatasource.sync_to_db(datasource, self)
+            if datasource not in config.get('DRUID_DATA_SOURCE_BLACKLIST'):
+                DruidDatasource.sync_to_db(datasource, self)
 
 
 class DruidDatasource(Model, AuditMixinNullable, Queryable):