Fix request URL in failsafe handling logs (#3126)

patroni/dcs/__init__.py

@@ -260,6 +260,19 @@ class Member(Tags, NamedTuple('Member',
                 ret['user'] = ret.pop('username')
         return ret
 
+    def get_endpoint_url(self, endpoint: Optional[str] = None) -> str:
+        """Get URL from member :attr:`~Member.api_url` and endpoint.
+
+        :param endpoint: URL path of REST API.
+
+        :returns: full URL for this REST API.
+        """
+        url = self.api_url or ''
+        if endpoint:
+            scheme, netloc, _, _, _, _ = urlparse(url)
+            url = urlunparse((scheme, netloc, endpoint, '', '', ''))
+        return url
+
     @property
     def api_url(self) -> Optional[str]:
         """The ``api_url`` value from :attr:`~Member.data` if defined."""

patroni/ha.py

@@ -1174,15 +1174,17 @@ class Ha(object):
 
         :returns: a :class:`_FailsafeResponse` object.
         """
+        endpoint = 'failsafe'
+        url = member.get_endpoint_url(endpoint)
         try:
-            response = self.patroni.request(member, 'post', 'failsafe', data, timeout=2, retries=1)
+            response = self.patroni.request(member, 'post', endpoint, data, timeout=2, retries=1)
             response_data = response.data.decode('utf-8')
-            logger.info('Got response from %s %s: %s', member.name, member.api_url, response_data)
+            logger.info('Got response from %s %s: %s', member.name, url, response_data)
             accepted = response.status == 200 and response_data == 'Accepted'
             # member may return its current received/replayed LSN in the "lsn" header.
             return _FailsafeResponse(member.name, accepted, parse_int(response.headers.get('lsn')))
         except Exception as e:
-            logger.warning("Request failed to %s: POST %s (%s)", member.name, member.api_url, e)
+            logger.warning("Request failed to %s: POST %s (%s)", member.name, url, e)
         return _FailsafeResponse(member.name, False, None)
 
     def check_failsafe_topology(self) -> bool:

patroni/request.py

@@ -2,7 +2,6 @@
 import json
 
 from typing import Any, Dict, Optional, Union
-from urllib.parse import urlparse, urlunparse
 
 import urllib3
 
@@ -164,10 +163,7 @@ class PatroniRequest(object):
 
         :returns: the response returned upon request.
         """
-        url = member.api_url or ''
-        if endpoint:
-            scheme, netloc, _, _, _, _ = urlparse(url)
-            url = urlunparse((scheme, netloc, endpoint, '', '', ''))
+        url = member.get_endpoint_url(endpoint)
         return self.request(method, url, data, **kwargs)
 
 

tests/test_ha.py

@@ -577,6 +577,23 @@ class TestHa(PostgresInit):
         self.p.set_role('primary')
         self.assertEqual(self.ha.update_failsafe({}), 'Running as a leader')
 
+    def test_call_failsafe_member(self):
+        member = Member(0, 'test', 1, {'api_url': 'http://localhost:8011/patroni'})
+        self.ha.patroni.request = Mock()
+        self.ha.patroni.request.return_value.data = b'Accepted'
+        self.ha.patroni.request.return_value.status = 200
+        with patch('patroni.ha.logger.info') as mock_logger:
+            ret = self.ha.call_failsafe_member({}, member)
+            self.assertEqual(mock_logger.call_args_list[0][0], ('Got response from %s %s: %s', 'test', 'http://localhost:8011/failsafe', 'Accepted'))
+            self.assertTrue(ret.accepted)
+
+        e = Exception('request failed')
+        self.ha.patroni.request.side_effect = e
+        with patch('patroni.ha.logger.warning') as mock_logger:
+            ret = self.ha.call_failsafe_member({}, member)
+            self.assertEqual(mock_logger.call_args_list[0][0], ('Request failed to %s: POST %s (%s)', 'test', 'http://localhost:8011/failsafe', e))
+            self.assertFalse(ret.accepted)
+
     @patch('time.sleep', Mock())
     def test_bootstrap_from_another_member(self):
         self.ha.cluster = get_cluster_initialized_with_leader()