| From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Paul Guo <guopa(at)vmware(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Brown <michael(dot)brown(at)discourse(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: fdatasync performance problem with large number of DB files |
| Date: | 2021-03-19 11:01:34 |
| Message-ID: | 20210319110134.GJ11765@telsasoft.com |
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| Lists: | pgsql-hackers |
On Fri, Mar 19, 2021 at 06:28:46PM +1300, Thomas Munro wrote:
> +++ b/doc/src/sgml/config.sgml
> + <productname>PostgreSQL</productname> will recursively open and fsync
> + all files in the data directory before crash recovery begins. This
Maybe it should say "data, tablespace, and WAL directories", or just "critical
directories".
> + {
> + {"recovery_init_sync_method", PGC_POSTMASTER, ERROR_HANDLING_OPTIONS,
> + gettext_noop("Sets the method for synchronizing the data directory before crash recovery."),
> + },
"and tablespaces and WAL"
--
Justin
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