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Refactor update_leader interface (#2690)

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pass reference to a last known leader object in order to avoid obtaining it from the `AbstractDCS.cluster` cache.

This change is useful for Consul, Etcd3 and Zookeeper implementations.
This commit is contained in:
Alexander Kukushkin
2023-05-25 14:21:05 +02:00
committed by GitHub
parent 1c7bf2f59e
commit af8e5f0d0f
14 changed files with 86 additions and 88 deletions
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tests/test_etcd.py
+6 -5
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@@ -296,14 +296,15 @@ class TestEtcd(unittest.TestCase):
self.etcd.write_leader_optime('0')
def test_update_leader(self):
self.assertTrue(self.etcd.update_leader(None, failsafe={'foo': 'bar'}))
leader = self.etcd.get_cluster().leader
self.assertTrue(self.etcd.update_leader(leader, None, failsafe={'foo': 'bar'}))
with patch.object(etcd.Client, 'write',
Mock(side_effect=[etcd.EtcdConnectionFailed, etcd.EtcdClusterIdChanged, Exception])):
self.assertRaises(EtcdError, self.etcd.update_leader, None)
self.assertFalse(self.etcd.update_leader(None))
self.assertRaises(EtcdError, self.etcd.update_leader, None)
self.assertRaises(EtcdError, self.etcd.update_leader, leader, None)
self.assertFalse(self.etcd.update_leader(leader, None))
self.assertRaises(EtcdError, self.etcd.update_leader, leader, None)
with patch.object(etcd.Client, 'write', Mock(side_effect=etcd.EtcdKeyNotFound)):
self.assertFalse(self.etcd.update_leader(None))
self.assertFalse(self.etcd.update_leader(leader, None))
def test_initialize(self):
self.assertFalse(self.etcd.initialize())