Re: wal segment size
| От | Laurenz Albe |
|---|---|
| Тема | Re: wal segment size |
| Дата | |
| Msg-id | 2a301859ab47c2e83ba5c8ebf75112d61246a8cd.camel@cybertec.at обсуждение исходный текст |
| Ответ на | wal segment size ("Colin 't Hart" <colinthart@gmail.com>) |
| Ответы |
Re: wal segment size
|
| Список | pgsql-general |
On Wed, 2025-12-17 at 16:13 +0100, Colin 't Hart wrote: > I see very little advice on tuning WAL segment size. > > One of my clients has a few datawarehouses at around 8 - 16 TB > > On one of the nodes there are approx 15000 WAL segments of 16MB each, totalling > approx 230GB. The archiver is archiving approx one per second, so approx 4 hours to clear. > > Would we gain anything by bumping the WAL segment size? Very likely yes, if the problem is the overhead of starting the archive_command. Another thing that can slow down archiving is if you compress these segments too aggressively. Yours, Laurenz Albe
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