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restart master first in some edge cases

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This commit is contained in:
Felix Kunde
2021-10-20 17:31:26 +02:00
parent 720b4575c7
commit bf0c06cca4
8 changed files with 101 additions and 43 deletions
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e2e/tests/test_e2e.py
+35 -7
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@@ -1064,12 +1064,13 @@ class EndToEndTestCase(unittest.TestCase):
via restarting cluster through Patroni's rest api
'''
k8s = self.k8s
masterPod = k8s.get_cluster_leader_pod()
leader = k8s.get_cluster_leader_pod()
replica = k8s.get_cluster_replica_pod()
labels = 'application=spilo,cluster-name=acid-minimal-cluster,spilo-role=master'
creationTimestamp = masterPod.metadata.creation_timestamp
creationTimestamp = leader.metadata.creation_timestamp
new_max_connections_value = "50"
# adjust max_connection
# adjust Postgres config
pg_patch_config = {
"spec": {
"postgresql": {
@@ -1098,7 +1099,7 @@ class EndToEndTestCase(unittest.TestCase):
self.eventuallyEqual(lambda: k8s.get_operator_state(), {"0": "idle"}, "Operator does not get in sync")
def compare_config():
effective_config = k8s.patroni_rest(masterPod.metadata.name, "config")
effective_config = k8s.patroni_rest(leader.metadata.name, "config")
desired_config = pg_patch_config["spec"]["patroni"]
desired_parameters = pg_patch_config["spec"]["postgresql"]["parameters"]
effective_parameters = effective_config["postgresql"]["parameters"]
@@ -1122,13 +1123,40 @@ class EndToEndTestCase(unittest.TestCase):
FROM pg_settings
WHERE name = 'max_connections';
"""
self.eventuallyEqual(lambda: self.query_database(masterPod.metadata.name, "postgres", setting_query)[0], new_max_connections_value,
"New max_connections setting not applied", 10, 5)
self.eventuallyEqual(lambda: self.query_database(leader.metadata.name, "postgres", setting_query)[0], new_max_connections_value,
"New max_connections setting not applied on master", 10, 5)
self.eventuallyNotEqual(lambda: self.query_database(replica.metadata.name, "postgres", setting_query)[0], new_max_connections_value,
"Expected max_connections not to be updated on replica since Postgres was restarted there first", 10, 5)
# make sure that pod wasn't recreated
self.assertEqual(creationTimestamp, masterPod.metadata.creation_timestamp,
self.assertEqual(creationTimestamp, leader.metadata.creation_timestamp,
"Master pod creation timestamp is updated")
# decrease max_connections again
lower_max_connections_value = "30"
pg_patch_max_connections = {
"spec": {
"postgresql": {
"parameters": {
"max_connections": lower_max_connections_value
}
}
}
}
k8s.api.custom_objects_api.patch_namespaced_custom_object(
"acid.zalan.do", "v1", "default", "postgresqls", "acid-minimal-cluster", pg_patch_max_connections)
self.eventuallyEqual(lambda: k8s.get_operator_state(), {"0": "idle"}, "Operator does not get in sync")
pg_patch_config["spec"]["postgresql"]["parameters"]["max_connections"] = lower_max_connections_value
self.eventuallyTrue(compare_config, "Postgres config not applied")
self.eventuallyEqual(lambda: self.query_database(leader.metadata.name, "postgres", setting_query)[0], new_max_connections_value,
"Previous max_connections setting not applied on master", 10, 5)
self.eventuallyEqual(lambda: self.query_database(replica.metadata.name, "postgres", setting_query)[0], new_max_connections_value,
"Previous max_connections setting not applied on replica", 10, 5)
except timeout_decorator.TimeoutError:
print('Operator log: {}'.format(k8s.get_operator_log()))
raise