Merge pull request #734 from ydb-platform/fix_use_all_nodes

Make use_all_nodes True by default

Author: vgvoleg

ydb/driver.py

@@ -107,7 +107,7 @@ def __init__(
         auth_token=None,
         channel_options=None,
         credentials=None,
-        use_all_nodes=False,
+        use_all_nodes=True,
         root_certificates=None,
         certificate_chain=None,
         private_key=None,