Stephen Frost wrote:
> The downside with any snapshot-style approach is that it means that when
> you have a failure, you have to go through and replay all the WAL since
> the last checkpoint, which is single-threaded and can take a large
> amount of time.
>
> When doing your testing, I'd strongly recommend that you have a large
> max_wal_size, run a large pgbench which writes a lot of data, and see
> how long a failover takes with this system.
Then "checkpoint_timeout" should also be large, right?
Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com
