mirror of
https://github.com/outbackdingo/patroni.git
synced 2026-08-25 14:53:37 +00:00
Alexander KukushkinandGitHub
4c3af2d1a0
keep as much backward compatibility as possible.
Following changes were made:
1. All internal checks are performed as `role in ('master', 'primary')`
2. All internal variables/functions/methods are renamed
3. `GET /metrics` endpoint returns `patroni_primary` in addition to `patroni_master`.
4. Logs are changed to use leader/primary/member/remote depending on the context
5. Unit-tests are using only role = 'primary' instead of 'master' to verify that 1 works.
6. patronictl still supports old syntax, but also accepts `--leader` and `--primary`.
7. `master_(start|stop)_timeout` is automatically translated to `primary_(start|stop)_timeout` if the last one is not set.
8. updated the documentation and some examples
Future plan: in the next major release switch role name from `master` to `primary` and maybe drop `master` altogether.
The Kubernetes implementation will require more work and keep two labels in parallel. Label values should probably be configurable as described in https://github.com/zalando/patroni/issues/2495.
61 lines
3.2 KiB
Gherkin
61 lines
3.2 KiB
Gherkin
Feature: standby cluster
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Scenario: prepare the cluster with logical slots
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Given I start postgres1
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Then postgres1 is a leader after 10 seconds
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And there is a non empty initialize key in DCS after 15 seconds
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When I issue a PATCH request to http://127.0.0.1:8009/config with {"slots": {"pm_1": {"type": "physical"}}, "postgresql": {"parameters": {"wal_level": "logical"}}}
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Then I receive a response code 200
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And Response on GET http://127.0.0.1:8009/config contains slots after 10 seconds
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And I sleep for 3 seconds
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When I issue a PATCH request to http://127.0.0.1:8009/config with {"slots": {"test_logical": {"type": "logical", "database": "postgres", "plugin": "test_decoding"}}}
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Then I receive a response code 200
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And I do a backup of postgres1
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When I start postgres0
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Then "members/postgres0" key in DCS has state=running after 10 seconds
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And replication works from postgres1 to postgres0 after 15 seconds
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@slot-advance
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Scenario: check permanent logical slots are synced to the replica
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Given I run patronictl.py restart batman postgres1 --force
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Then Logical slot test_logical is in sync between postgres0 and postgres1 after 10 seconds
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When I add the table replicate_me to postgres1
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And I get all changes from logical slot test_logical on postgres1
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Then Logical slot test_logical is in sync between postgres0 and postgres1 after 10 seconds
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Scenario: Detach exiting node from the cluster
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When I shut down postgres1
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Then postgres0 is a leader after 10 seconds
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And "members/postgres0" key in DCS has role=master after 3 seconds
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When I issue a GET request to http://127.0.0.1:8008/
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Then I receive a response code 200
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Scenario: check replication of a single table in a standby cluster
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Given I start postgres1 in a standby cluster batman1 as a clone of postgres0
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Then postgres1 is a leader of batman1 after 10 seconds
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When I add the table foo to postgres0
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Then table foo is present on postgres1 after 20 seconds
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And I sleep for 3 seconds
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When I issue a GET request to http://127.0.0.1:8009/primary
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Then I receive a response code 503
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When I issue a GET request to http://127.0.0.1:8009/standby_leader
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Then I receive a response code 200
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And I receive a response role standby_leader
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And there is a postgres1_cb.log with "on_role_change standby_leader batman1" in postgres1 data directory
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When I start postgres2 in a cluster batman1
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Then postgres2 role is the replica after 24 seconds
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And table foo is present on postgres2 after 20 seconds
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And postgres1 does not have a logical replication slot named test_logical
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Scenario: check failover
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When I kill postgres1
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And I kill postmaster on postgres1
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Then postgres2 is replicating from postgres0 after 32 seconds
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When I issue a GET request to http://127.0.0.1:8010/primary
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Then I receive a response code 503
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And I sleep for 3 seconds
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When I issue a GET request to http://127.0.0.1:8010/standby_leader
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Then I receive a response code 200
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And I receive a response role standby_leader
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And replication works from postgres0 to postgres2 after 15 seconds
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And there is a postgres2_cb.log with "on_start replica batman1\non_role_change standby_leader batman1" in postgres2 data directory
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