FF moved to yaml

Author: bereng

ttl_test.py

@@ -370,7 +370,7 @@ def _base_expiration_overflow_policy_test(self, default_ttl, policy):
         @jira_ticket CASSANDRA-14092 and CASSANDRA-14227
         """
         # Post 5.0 TTL may overflow in 2038 (legacy) or 2106 C14227
-        overflow_policy_applies = "NONE" != os.getenv("cassandra.storage_compatibility_mode", "CASSANDRA_4")\
+        overflow_policy_applies = "NONE" != self.cluster.nodelist()[0].get_conf_option("storage_compatibility_mode") \
                                   or datetime.date.today().year >= 2086
         MAX_TTL = 20 * 365 * 24 * 60 * 60  # 20 years in seconds
         default_time_to_live = MAX_TTL if default_ttl else None