Re: Wal_keep_size
| От | Raj |
|---|---|
| Тема | Re: Wal_keep_size |
| Дата | |
| Msg-id | CAJk5AtbeY+O71bbESq1+rG3zqv=mPzEDaxMniXuBfjZ7+RKpaw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Wal_keep_size (Thomas Carroll <tomfecarroll@yahoo.com>) |
| Ответы |
Re: Wal_keep_size
Re: Wal_keep_size |
| Список | pgsql-admin |
If wal_keep_size is more than max_wal_size wouldn't it always trigger checkpoint ?
On Tue, 7 Oct 2025, 03:08 Thomas Carroll, <tomfecarroll@yahoo.com> wrote:
Hope nobody minds me chipping in here.The answer is "not necessarily." The names make them seem closely related, but not so much.max_wal_size is all about checkpoints. When the WAL exceeds this, Postgres will try to run a checkpoint. Under some circumstances it won't, but let's keep it simple for now.wal_keep_size is all about replication. Replicas need WAL files to stick around for long enough that they can process them. wal_keep_size is a minimum figure.TomOn Monday, October 6, 2025 at 03:51:17 PM EDT, Raj <rajeshkumar.dba09@gmail.com> wrote:Should Wal_keep_size <= max_wal_size ?
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