pgsql: Add wal_recycle and wal_init_zero GUCs.
| От | Thomas Munro |
|---|---|
| Тема | pgsql: Add wal_recycle and wal_init_zero GUCs. |
| Дата | |
| Msg-id | E1hB8W7-0005OZ-Lt@gemulon.postgresql.org обсуждение исходный текст |
| Список | pgsql-committers |
Add wal_recycle and wal_init_zero GUCs. On at least ZFS, it can be beneficial to create new WAL files every time and not to bother zero-filling them. Since it's not clear which other filesystems might benefit from one or both of those things, add individual GUCs to control those two behaviors independently and make only very general statements in the docs. Author: Jerry Jelinek, with some adjustments by Thomas Munro Reviewed-by: Alvaro Herrera, Andres Freund, Tomas Vondra, Robert Haas and others Discussion: https://postgr.es/m/CACPQ5Fo00QR7LNAcd1ZjgoBi4y97%2BK760YABs0vQHH5dLdkkMA%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/475861b2615dd63ae8431d811749a6f9a15bbfd6 Modified Files -------------- doc/src/sgml/config.sgml | 35 ++++++++++ src/backend/access/transam/xlog.c | 97 ++++++++++++++++++--------- src/backend/utils/misc/guc.c | 20 ++++++ src/backend/utils/misc/postgresql.conf.sample | 2 + src/include/access/xlog.h | 2 + 5 files changed, 123 insertions(+), 33 deletions(-)
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