On 9/4/18 7:41 AM, Ron wrote: > On 03/09/2018 08:56 AM, David Steele wrote: > >>> - use replication slots for backingup wal on the backup server. >> Another good feature. We have not added it yet because pgBackRest was >> originally written for very high-volume clusters (100K+ WAL per day) and >> our parallel async feature answers that need much better. We recommend >> a replicated standby for more update-to-date data. > > Every N minutes you copy the WAL files to the backup server?
[Accidentally hit send on the previous post, here's the rest...] WAL segments are transferred whenever Postgres indicates that a segment is finished via the archive_command. Async archiving "looks ahead" to find WAL segments that are ready to archive. You can use archive_timeout to force Postgres to push a WAL segment every N seconds for clusters that have idle time. Regards, -- -David da...@pgmasters.net
