Skip to content

Commit 482e68c

Browse files
antsants
committed
Merge branch 'multisite' into ctl-switchover-only
2 parents 9f20479 + c7c779d commit 482e68c

Some content is hidden

Large Commits have some content hidden by default. Use the searchbox below for content that may be hidden.

66 files changed

+948
-9531
lines changed

‎README.rst‎

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -102,6 +102,8 @@ raft
102102
`pysyncobj` module in order to use python Raft implementation as DCS
103103
aws
104104
`boto3` in order to use AWS callbacks
105+
systemd
106+
`systemd-python` in order to use sd_notify integration
105107
all
106108
all of the above (except psycopg family)
107109
psycopg3

‎docker/README.md‎

Lines changed: 42 additions & 43 deletions
Original file line numberDiff line numberDiff line change
@@ -55,7 +55,6 @@ Example session:
5555
2024-08-26 09:04:34,938 INFO: establishing a new patroni heartbeat connection to postgres
5656
2024-08-26 09:04:34,992 INFO: running post_bootstrap
5757
2024-08-26 09:04:35,004 WARNING: User creation via "bootstrap.users" will be removed in v4.0.0
58-
2024-08-26 09:04:35,009 WARNING: Could not activate Linux watchdog device: Can't open watchdog device: [Errno 2] No such file or directory: '/dev/watchdog'
5958
2024-08-26 09:04:35,189 INFO: initialized a new cluster
6059
2024-08-26 09:04:35,328 INFO: no action. I am (patroni1), the leader with the lock
6160
2024-08-26 09:04:43,824 INFO: establishing a new patroni restapi connection to postgres
@@ -65,13 +64,13 @@ Example session:
6564

6665
$ docker exec -ti demo-patroni1 bash
6766
postgres@patroni1:~$ patronictl list
68-
+ Cluster: demo (7303838734793224214) --------+----+-----------+
69-
| Member | Host | Role | State | TL | Lag in MB |
70-
+----------+------------+---------+-----------+----+-----------+
71-
| patroni1 | 172.29.0.2 | Leader | running | 1 | |
72-
| patroni2 | 172.29.0.6 | Replica | streaming | 1 | 0 |
73-
| patroni3 | 172.29.0.5 | Replica | streaming | 1 | 0 |
74-
+----------+------------+---------+-----------+----+-----------+
67+
+ Cluster: demo (7303838734793224214) --------+----+-------------+-----+------------+-----+
68+
| Member | Host | Role | State | TL | Receive LSN | Lag | Replay LSN | Lag |
69+
+----------+------------+---------+-----------+----+-------------+-----+------------+-----+
70+
| patroni1 | 172.18.0.8 | Leader | running | 2 | | | | |
71+
| patroni2 | 172.18.0.3 | Replica | streaming | 2 | 0/404D8A8 | 0 | 0/404D8A8 | 0 |
72+
| patroni3 | 172.18.0.6 | Replica | streaming | 2 | 0/404D8A8 | 0 | 0/404D8A8 | 0 |
73+
+----------+------------+---------+-----------+----+-------------+-----+------------+-----+
7574

7675
postgres@patroni1:~$ etcdctl get --keys-only --prefix /service/demo
7776
/service/demo/config
@@ -172,7 +171,7 @@ Example session:
172171
2024-08-26 08:21:18,202 INFO: running post_bootstrap
173172
2024-08-26 08:21:19.048 UTC [53] LOG: starting maintenance daemon on database 16385 user 10
174173
2024-08-26 08:21:19.048 UTC [53] CONTEXT: Citus maintenance daemon for database 16385 user 10
175-
2024-08-26 08:21:19,058 WARNING: Could not activate Linux watchdog device: Can't open watchdog device: [Errno 2] No such file or directory: '/dev/watchdog'
174+
2024-08-26 08:21:19,058 DEBUG: Could not activate Linux watchdog device: Can't open watchdog device: [Errno 2] No such file or directory: '/dev/watchdog'
176175
2024-08-26 08:21:19.250 UTC [37] LOG: checkpoint starting: immediate force wait
177176
2024-08-26 08:21:19,275 INFO: initialized a new cluster
178177
2024-08-26 08:21:22.946 UTC [37] LOG: checkpoint starting: immediate force wait
@@ -268,47 +267,47 @@ Example session:
268267
citus=# \q
269268

270269
postgres@haproxy:~$ patronictl list
271-
+ Citus cluster: demo ----------+----------------+-----------+----+-----------+
272-
| Group | Member | Host | Role | State | TL | Lag in MB |
273-
+-------+---------+-------------+----------------+-----------+----+-----------+
274-
| 0 | coord1 | 172.19.0.8 | Leader | running | 1 | |
275-
| 0 | coord2 | 172.19.0.7 | Quorum Standby | streaming | 1 | 0 |
276-
| 0 | coord3 | 172.19.0.11 | Quorum Standby | streaming | 1 | 0 |
277-
| 1 | work1-1 | 172.19.0.12 | Quorum Standby | streaming | 1 | 0 |
278-
| 1 | work1-2 | 172.19.0.2 | Leader | running | 1 | |
279-
| 2 | work2-1 | 172.19.0.6 | Quorum Standby | streaming | 1 | 0 |
280-
| 2 | work2-2 | 172.19.0.9 | Leader | running | 1 | |
281-
+-------+---------+-------------+----------------+-----------+----+-----------+
270+
+ Citus cluster: demo ----------+----------------+-----------+----+-------------+-----+------------+-----+
271+
| Group | Member | Host | Role | State | TL | Receive LSN | Lag | Replay LSN | Lag |
272+
+-------+---------+-------------+----------------+-----------+----+-------------+-----+------------+-----+
273+
| 0 | coord1 | 172.19.0.8 | Leader | running | 1 | | | | |
274+
| 0 | coord2 | 172.19.0.7 | Quorum Standby | streaming | 1 | 0/41C06A0 | 0 | 0/41C06A0 | 0 |
275+
| 0 | coord3 | 172.19.0.11 | Quorum Standby | streaming | 1 | 0/41C06A0 | 0 | 0/41C06A0 | 0 |
276+
| 1 | work1-1 | 172.19.0.12 | Quorum Standby | streaming | 1 | 0/31ED910 | 0 | 0/31ED910 | 0 |
277+
| 1 | work1-2 | 172.19.0.2 | Leader | running | 1 | | | | |
278+
| 2 | work2-1 | 172.19.0.6 | Quorum Standby | streaming | 1 | 0/31D22D0 | 0 | 0/31D22D0 | 0 |
279+
| 2 | work2-2 | 172.19.0.9 | Leader | running | 1 | | | | |
280+
+-------+---------+-------------+----------------+-----------+----+-------------+-----+------------+-----+
282281

283282

284283
postgres@haproxy:~$ patronictl switchover --group 2 --force
285284
Current cluster topology
286-
+ Citus cluster: demo (group: 2, 7407360296219029527) ---+-----------+
287-
| Member | Host | Role | State | TL | Lag in MB |
288-
+---------+------------+----------------+-----------+----+-----------+
289-
| work2-1 | 172.19.0.6 | Quorum Standby | streaming | 1 | 0 |
290-
| work2-2 | 172.19.0.9 | Leader | running | 1 | |
291-
+---------+------------+----------------+-----------+----+-----------+
285+
+ Citus cluster: demo (group: 2, 7407360296219029527) ---+-------------+-----+------------+-----+
286+
| Member | Host | Role | State | TL | Receive LSN | Lag | Replay LSN | Lag |
287+
+---------+------------+----------------+-----------+----+-------------+-----+------------+-----+
288+
| work2-1 | 172.19.0.6 | Quorum Standby | streaming | 1 | 0/31D22D0 | 0 | 0/31D22D0 | 0 |
289+
| work2-2 | 172.19.0.9 | Leader | running | 1 | | | | |
290+
+---------+------------+----------------+-----------+----+-------------+-----+------------+-----+
292291
2024-08-26 08:31:45.92277 Successfully switched over to "work2-1"
293-
+ Citus cluster: demo (group: 2, 7407360296219029527) ------+
294-
| Member | Host | Role | State | TL | Lag in MB |
295-
+---------+------------+---------+---------+----+-----------+
296-
| work2-1 | 172.19.0.6 | Leader | running | 1 | |
297-
| work2-2 | 172.19.0.9 | Replica | stopped | | unknown |
298-
+---------+------------+---------+---------+----+-----------+
292+
+ Citus cluster: demo (group: 2, 7407360296219029527) --------+---------+------------+---------+
293+
| Member | Host | Role | State | TL | Receive LSN | Lag | Replay LSN | Lag |
294+
+---------+------------+---------+---------+----+-------------+---------+------------+---------+
295+
| work2-1 | 172.19.0.6 | Leader | running | 1 | | | | |
296+
| work2-2 | 172.19.0.9 | Replica | stopped | | unknown | unknown | unknown | unknown |
297+
+---------+------------+---------+---------+----+-------------+---------+------------+---------+
299298

300299
postgres@haproxy:~$ patronictl list
301-
+ Citus cluster: demo ----------+----------------+-----------+----+-----------+
302-
| Group | Member | Host | Role | State | TL | Lag in MB |
303-
+-------+---------+-------------+----------------+-----------+----+-----------+
304-
| 0 | coord1 | 172.19.0.8 | Leader | running | 1 | |
305-
| 0 | coord2 | 172.19.0.7 | Quorum Standby | streaming | 1 | 0 |
306-
| 0 | coord3 | 172.19.0.11 | Quorum Standby | streaming | 1 | 0 |
307-
| 1 | work1-1 | 172.19.0.12 | Quorum Standby | streaming | 1 | 0 |
308-
| 1 | work1-2 | 172.19.0.2 | Leader | running | 1 | |
309-
| 2 | work2-1 | 172.19.0.6 | Leader | running | 2 | |
310-
| 2 | work2-2 | 172.19.0.9 | Quorum Standby | streaming | 2 | 0 |
311-
+-------+---------+-------------+----------------+-----------+----+-----------+
300+
+ Citus cluster: demo ----------+----------------+-----------+----+-------------+-----+------------+-----+
301+
| Group | Member | Host | Role | State | TL | Receive LSN | Lag | Replay LSN | Lag |
302+
+-------+---------+-------------+----------------+-----------+----+-------------+-----+------------+-----+
303+
| 0 | coord1 | 172.19.0.8 | Leader | running | 1 | | | | |
304+
| 0 | coord2 | 172.19.0.7 | Quorum Standby | streaming | 1 | 0/41C06A0 | 0 | 0/41C06A0 | 0 |
305+
| 0 | coord3 | 172.19.0.11 | Quorum Standby | streaming | 1 | 0/41C06A0 | 0 | 0/41C06A0 | 0 |
306+
| 1 | work1-1 | 172.19.0.12 | Quorum Standby | streaming | 1 | 0/31ED910 | 0 | 0/31ED910 | 0 |
307+
| 1 | work1-2 | 172.19.0.2 | Leader | running | 1 | | | | |
308+
| 2 | work2-1 | 172.19.0.6 | Leader | running | 2 | | | | |
309+
| 2 | work2-2 | 172.19.0.9 | Quorum Standby | streaming | 2 | 0/31D22D0 | 0 | 0/31D22D0 | 0 |
310+
+-------+---------+-------------+----------------+-----------+----+-------------+-----+------------+-----+
312311

313312
postgres@haproxy:~$ psql -h localhost -p 5000 -U postgres -d citus
314313
Password for user postgres: postgres

‎docs/ENVIRONMENT.rst‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -32,6 +32,10 @@ Log
3232
- **PATRONI\_LOG\_FILE\_NUM**: The number of application logs to retain.
3333
- **PATRONI\_LOG\_FILE\_SIZE**: Size of patroni.log file (in bytes) that triggers a log rolling.
3434
- **PATRONI\_LOG\_LOGGERS**: Redefine logging level per python module. Example ``PATRONI_LOG_LOGGERS="{patroni.postmaster: WARNING, urllib3: DEBUG}"``
35+
- **PATRONI\_LOG\_DEDUPLICATE\_HEARTBEAT\_LOGS**: If set to ``true``, successive heartbeat logs that are identical shall not be output. Default value is ``false``.
36+
37+
.. warning::
38+
The time the HA loop executes at can be very valuable information in diagnosing failovers due to resource exhaustion and similar problems. When ``PATRONI_LOG_DEDUPLICATE_HEARTBEAT_LOGS`` is set to ``true`` there will be no log generated for the HA loop execution (unless the leader changes) and hence this potentially useful information will not be available from the logs.
3539

3640
Citus
3741
-----

0 commit comments

Comments
 (0)