Re: [(catch-ext)] Re: [(catch-ext)] Re: Setting up streaming replication on large database (20+ TB) for the first time

Sorry for top posting, from phone.

But pgbackrest exactly helped with that. With compression and parallel process in backup, the backup and restore was quick. I used this, where I took a backup and immediately did a restore so less wals to replay, else wal replay is indeed slow.

On Thu, Aug 18, 2022, 1:03 PM Ivan N. Ivanov <ivan.ni@telebid-pro.com> wrote:

Thank you, people. The big problem in my case, which I have not mentioned, is that I think the network is a bottleneck, because I am running pg_basebackup through internet from local country to Amazon instance in Germany and the speed in copying is around 50 MB/sec max, that is why it takes 2 days for copying.

I will try using high compression for the basebackup to reduce the time.

pgbackrest is an alternative, too

Thank you again!

On Wed, Aug 17, 2022 at 11:13 PM Ivan N. Ivanov <ivan.ni@telebid-pro.com> wrote:

Thank you for your answer! I have found this tool and I will try it tomorrow to see if this "read-ahead" feature will speed up the process.

On Wed, Aug 17, 2022 at 11:09 PM Christophe Pettus <xof@thebuild.com> wrote:

> On Aug 17, 2022, at 13:06, Ivan N. Ivanov <ivan.ni@telebid-pro.com> wrote:
>
> How to speed up recovering of WAL files?

Since you are running on your own hardware, you might take a look at:

        https://github.com/TritonDataCenter/pg_prefaulter