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rename citus_handler to mpp_handler (#2991)

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obey the following 5 meanings of terminology _cluster_ in Patroni.

1. PostgreSQL cluster: a cluster of postgresql instances which have the same system identifier.
2. MPP cluster: a cluster of PostgreSQL clusters that one of them acts as Coodinator and others act as workers.
3. Coordinator cluster: a PostgreSQL cluster which act the role of 'coordinator' within a MPP cluster.
4. Worker cluster: a PostgreSQL cluster which act the role 'worker' within a MPP cluster.
5. Patroni cluster: all cluster managed by Patroni can be called Patroni cluster, but we usually use this term to refering a single PostgreSQL cluster or an MPP cluster.
This commit is contained in:
zhjwpku
2024-02-28 06:16:20 +01:00
committed by GitHub
parent bdd02324b4
commit e131065d74
21 changed files with 259 additions and 105 deletions
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tests/test_ha.py
+4 -3
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@@ -1659,12 +1659,13 @@ class TestHa(PostgresInit):
@patch('patroni.postgresql.mpp.AbstractMPPHandler.is_coordinator', Mock(return_value=False))
def test_notify_citus_coordinator(self):
self.ha.patroni.request = Mock()
self.ha.notify_citus_coordinator('before_demote')
self.ha.notify_mpp_coordinator('before_demote')
self.ha.patroni.request.assert_called_once()
self.assertEqual(self.ha.patroni.request.call_args[1]['timeout'], 30)
self.ha.patroni.request = Mock(side_effect=Exception)
with patch('patroni.ha.logger.warning') as mock_logger:
self.ha.notify_citus_coordinator('before_promote')
self.ha.notify_mpp_coordinator('before_promote')
self.assertEqual(self.ha.patroni.request.call_args[1]['timeout'], 2)
mock_logger.assert_called()
self.assertTrue(mock_logger.call_args[0][0].startswith('Request to Citus coordinator'))
self.assertTrue(mock_logger.call_args[0][0].startswith('Request to %s coordinator leader'))
self.assertEqual(mock_logger.call_args[0][1], 'Citus')