try catching reload errors

src/charm.py

@@ -1782,7 +1782,10 @@ def _handle_postgresql_restart_need(self, enable_tls: bool) -> None:
             restart_postgresql = self.is_tls_enabled != self.postgresql.is_tls_enabled()
         else:
             restart_postgresql = False
-        self._patroni.reload_patroni_configuration()
+        try:
+            self._patroni.reload_patroni_configuration()
+        except Exception as e:
+            logger.error(f"Reload patroni call failed! error: {e!s}")
         # Wait for some more time than the Patroni's loop_wait default value (10 seconds),
         # which tells how much time Patroni will wait before checking the configuration
         # file again to reload it.

src/cluster.py

@@ -777,7 +777,7 @@ def remove_raft_member(self, member_ip: str) -> None:
         if "SUCCESS" not in result:
             raise RemoveRaftMemberFailedError()
 
-    @retry(stop=stop_after_attempt(10), wait=wait_exponential(multiplier=1, min=2, max=10))
+    @retry(stop=stop_after_attempt(20), wait=wait_exponential(multiplier=1, min=2, max=10))
     def reload_patroni_configuration(self):
         """Reload Patroni configuration after it was changed."""
         requests.post(

tests/integration/test_subordinates.py

@@ -35,6 +35,7 @@ async def test_deploy(ops_test: OpsTest, charm: str, github_secrets):
             config={"token": github_secrets["UBUNTU_PRO_TOKEN"]},
             channel="latest/edge",
             num_units=0,
+            base=CHARM_BASE,
         ),
         ops_test.model.deploy(
             LS_CLIENT,