From: | Christopher Pereira <kripper(at)imatronix(dot)cl> |
---|---|
To: | Stephen Frost <sfrost(at)snowman(dot)net> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: pg_basebackup + incremental base backups |
Date: | 2020-05-21 04:50:15 |
Message-ID: | 367ee69d-9dc7-4de6-f8a1-b460567bcc07@imatronix.cl |
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Thread: | |
Lists: | pgsql-general |
>> In case of big databases, can we do incremental backups with pg_basebackup?
> pg_basebackup doesn't support incremental backups, though there's been
> discussion of adding some kind of support for it, check -hackers if
> you're curious.
>
>> Is there any alternative?
> There's a few different alternatives for PG backup software, some of
> which support incremental backups and restores. I'm personally involved
> with pgbackrest- https://pgbackrest.org though there's other options out
> there also (wal-g, barman, and more).
>
> Thanks,
>
> Stephen
Hi Stephen,
We tried pgbackrest as a solution to rebuild the standby cluster, by
making a differential backup of the primary cluster.
But it seems that pgbackrest is only able to rebuild the standby cluster
by restoring an existing backup from a repository cluster, and not
directly from the primary cluster.
We are afraid that creating a backup on the repository cluster is an
additional step that could be avoided.
Is there some way to rebuild the standby cluster by doing a differential
backup of the primary cluster directly?
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