Re: Replication sequence
| От | Loles |
|---|---|
| Тема | Re: Replication sequence |
| Дата | |
| Msg-id | CA+FWGK5wb2iG9VLx2FL81Ym-k3t0LZUAsADAuOoiGGnCJnaL+w@mail.gmail.com обсуждение исходный текст |
| Ответ на | Replication sequence (Paolo Saudin <paolosaudin@gmail.com>) |
| Ответы |
Re: Replication sequence
|
| Список | pgsql-general |
One thing is the number of records in the table and another is the current value of the sequence.
Execute:
select max (field) from bobo.menu_pages;
In both master and slave server.
What give you back?
"field" is the data that belongs to the sequence.
El lun., 15 feb. 2021 18:55, Paolo Saudin <paolosaudin@gmail.com> escribió:
Hi all,I have two servers, a primary and a secondary one with a streaming replica setup.Today I noticed that some sequences are not lined-up, the replica ones are well ahead, while the records number is the same. How is it possible?Thanks,Paolo---- primary server--postgres@db-srv1:~$ psql
psql (9.5.19)
cf-db-srv1:5432 postgres@rete_llpp=# SELECT last_value FROM bobo.menu_pages_mp_id_seq;
┌────────────┐
│ last_value │
├────────────┤
│ 74 │
└────────────┘
cf-db-srv1:5432 postgres@rete_llpp=# select count(*) from bobo.menu_pages;
┌───────┐
│ count │
├───────┤
│ 74 │
└───────┘---- replica server--
postgres@db-srv2:~$ psql
psql (9.5.24)cf-db-srv2:5433 postgres@rete_llpp=# SELECT last_value FROM bobo.menu_pages_mp_id_seq;┌────────────┐
│ last_value │
├────────────┤
│ 105 │
└────────────┘cf-db-srv2:5433 postgres@rete_llpp=# select count(*) from bobo.menu_pages;┌───────┐
│ count │
├───────┤
│ 74 │
└───────┘
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