Files
patroni/features/patroni_api.feature
Alexander Kukushkin 4148e0b5b2 Take into account current role when deciding on removal of member ZNode (#2884)
Patroni doesn't watch on all changes of member keys in order to not create too much load on ZooKeeper, but only subscribes to changes (ZNodes added or deleted) in the `/member` directory. Therefore when some important fields in the value are updated we remove and recreate ZNode in order to notify the leader or other members.

The leader should remove the member key only when the `checkpoint_after_promote` value is changed and replicas when the `state` is changed to/from `running`.

We don't care about the `version` field, because Patroni version can't be changed without restart, what will case ZooKeeper `session_id` to change it anyway.

This fix hopefully will reduce failures of behave tests on GH Actions.
2023-09-26 11:16:52 +02:00

128 lines
6.6 KiB
Gherkin

Feature: patroni api
We should check that patroni correctly responds to valid and not-valid API requests.
Scenario: check API requests on a stand-alone server
Given I start postgres0
And postgres0 is a leader after 10 seconds
When I issue a GET request to http://127.0.0.1:8008/
Then I receive a response code 200
And I receive a response state running
And I receive a response role master
When I issue a GET request to http://127.0.0.1:8008/standby_leader
Then I receive a response code 503
When I issue a GET request to http://127.0.0.1:8008/health
Then I receive a response code 200
When I issue a GET request to http://127.0.0.1:8008/replica
Then I receive a response code 503
When I issue a POST request to http://127.0.0.1:8008/reinitialize with {"force": true}
Then I receive a response code 503
And I receive a response text I am the leader, can not reinitialize
When I run patronictl.py switchover batman --master postgres0 --force
Then I receive a response returncode 1
And I receive a response output "Error: No candidates found to switchover to"
When I issue a POST request to http://127.0.0.1:8008/switchover with {"leader": "postgres0"}
Then I receive a response code 412
And I receive a response text switchover is not possible: cluster does not have members except leader
When I issue an empty POST request to http://127.0.0.1:8008/failover
Then I receive a response code 400
When I issue a POST request to http://127.0.0.1:8008/failover with {"foo": "bar"}
Then I receive a response code 400
And I receive a response text "Failover could be performed only to a specific candidate"
Scenario: check local configuration reload
Given I add tag new_tag new_value to postgres0 config
And I issue an empty POST request to http://127.0.0.1:8008/reload
Then I receive a response code 202
Scenario: check dynamic configuration change via DCS
Given I issue a PATCH request to http://127.0.0.1:8008/config with {"ttl": 20, "postgresql": {"parameters": {"max_connections": "101"}}}
Then I receive a response code 200
And Response on GET http://127.0.0.1:8008/patroni contains pending_restart after 11 seconds
When I issue a GET request to http://127.0.0.1:8008/config
Then I receive a response code 200
And I receive a response ttl 20
When I issue a GET request to http://127.0.0.1:8008/patroni
Then I receive a response code 200
And I receive a response tags {'new_tag': 'new_value'}
And I sleep for 4 seconds
Scenario: check the scheduled restart
Given I run patronictl.py edit-config -p 'superuser_reserved_connections=6' --force batman
Then I receive a response returncode 0
And I receive a response output "+ superuser_reserved_connections: 6"
And Response on GET http://127.0.0.1:8008/patroni contains pending_restart after 5 seconds
Given I issue a scheduled restart at http://127.0.0.1:8008 in 5 seconds with {"role": "replica"}
Then I receive a response code 202
And I sleep for 8 seconds
And Response on GET http://127.0.0.1:8008/patroni contains pending_restart after 10 seconds
Given I issue a scheduled restart at http://127.0.0.1:8008 in 5 seconds with {"restart_pending": "True"}
Then I receive a response code 202
And Response on GET http://127.0.0.1:8008/patroni does not contain pending_restart after 10 seconds
And postgres0 role is the primary after 10 seconds
Scenario: check API requests for the primary-replica pair in the pause mode
Given I start postgres1
Then replication works from postgres0 to postgres1 after 20 seconds
When I run patronictl.py pause batman
Then I receive a response returncode 0
When I kill postmaster on postgres1
And I issue a GET request to http://127.0.0.1:8009/replica
Then I receive a response code 503
And "members/postgres1" key in DCS has state=stopped after 10 seconds
When I run patronictl.py restart batman postgres1 --force
Then I receive a response returncode 0
Then replication works from postgres0 to postgres1 after 20 seconds
And I sleep for 2 seconds
When I issue a GET request to http://127.0.0.1:8009/replica
Then I receive a response code 200
And I receive a response state running
And I receive a response role replica
When I run patronictl.py reinit batman postgres1 --force --wait
Then I receive a response returncode 0
And I receive a response output "Success: reinitialize for member postgres1"
And postgres1 role is the secondary after 30 seconds
And replication works from postgres0 to postgres1 after 20 seconds
When I run patronictl.py restart batman postgres0 --force
Then I receive a response returncode 0
And I receive a response output "Success: restart on member postgres0"
And postgres0 role is the primary after 5 seconds
Scenario: check the switchover via the API in the pause mode
Given I issue a POST request to http://127.0.0.1:8008/switchover with {"leader": "postgres0", "candidate": "postgres1"}
Then I receive a response code 200
And postgres1 is a leader after 5 seconds
And postgres1 role is the primary after 10 seconds
And postgres0 role is the secondary after 10 seconds
And replication works from postgres1 to postgres0 after 20 seconds
And "members/postgres0" key in DCS has state=running after 10 seconds
When I issue a GET request to http://127.0.0.1:8008/primary
Then I receive a response code 503
When I issue a GET request to http://127.0.0.1:8008/replica
Then I receive a response code 200
When I issue a GET request to http://127.0.0.1:8009/primary
Then I receive a response code 200
When I issue a GET request to http://127.0.0.1:8009/replica
Then I receive a response code 503
Scenario: check the scheduled switchover
Given I issue a scheduled switchover from postgres1 to postgres0 in 10 seconds
Then I receive a response returncode 1
And I receive a response output "Can't schedule switchover in the paused state"
When I run patronictl.py resume batman
Then I receive a response returncode 0
Given I issue a scheduled switchover from postgres1 to postgres0 in 10 seconds
Then I receive a response returncode 0
And postgres0 is a leader after 20 seconds
And postgres0 role is the primary after 10 seconds
And postgres1 role is the secondary after 10 seconds
And replication works from postgres0 to postgres1 after 25 seconds
And "members/postgres1" key in DCS has state=running after 10 seconds
When I issue a GET request to http://127.0.0.1:8008/primary
Then I receive a response code 200
When I issue a GET request to http://127.0.0.1:8008/replica
Then I receive a response code 503
When I issue a GET request to http://127.0.0.1:8009/primary
Then I receive a response code 503
When I issue a GET request to http://127.0.0.1:8009/replica
Then I receive a response code 200