github/repmgr
1
0
Fork 0
mirror of https://github.com/EnterpriseDB/repmgr.git synced 2026-03-23 07:06:30 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

README: add replication slot example

Browse Source
This commit is contained in:
Ian Barwick
2016-01-28 11:43:42 +09:00
parent faed8a65f7
commit 98c4eb002a
1 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
README.md
View File

@@ -542,6 +542,23 @@ When cloning a standby, `repmgr` will automatically generate an appropriate
slot name, which is stored in the `repl_nodes` table, and create the slot
on the master:
repmgr=# SELECT * from repl_nodes ORDER BY id;
id | type | upstream_node_id | cluster | name | conninfo | slot_name | priority | active
----+---------+------------------+---------+-------+------------------------------------------+---------------+----------+--------
1 | master | | test | node1 | host=localhost dbname=repmgr user=repmgr | repmgr_slot_1 | 100 | t
2 | standby | 1 | test | node2 | host=localhost dbname=repmgr user=repmgr | repmgr_slot_2 | 100 | t
3 | standby | 1 | test | node3 | host=localhost dbname=repmgr user=repmgr | repmgr_slot_3 | 100 | t
repmgr=# SELECT * FROM pg_replication_slots ;
slot_name | plugin | slot_type | datoid | database | active | active_pid | xmin | catalog_xmin | restart_lsn
---------------+--------+-----------+--------+----------+--------+------------+------+--------------+-------------
repmgr_slot_3 | | physical | | | t | 26060 | | | 0/50028F0
repmgr_slot_2 | | physical | | | t | 26079 | | | 0/50028F0
(2 rows)
Note that a slot name will be created by default for the master but not
actually used unless the master is converted to a standby using e.g.
`repmgr standby switchover`.
Be aware that when initially cloning a standby, you will need to ensure
that all required WAL files remain available while the cloning is taking