Re: Backup Restore from other node after switchover/failover

Hi Dirk,

Yes, this will work fine. You can use the existing backup to restore it on
the new node and use the WAL archives from new node for the recovery
purpose. As a best practice, I would suggest setting the parameter
"recovery_target_timeline=latest" in your recovery command to ensure the
recovery happens along the latest timeline.

Regards
Sushant

On Wed, Oct 28, 2020 at 2:53 PM Dirk Krautschick <
Dirk(dot)Krautschick(at)trivadis(dot)com> wrote:

> Hi,
>
>
>
> haven’t tested it yet but maybe I can get a quick answer here.
>
> We have discussed the following scenario.
>
>
>
> Few nodes as streaming replication cluster all in sync with taking backup
>
> only from one dedicated node. Now that node which is responsible for the
> backups
>
> goes down. For sure I have a full backup taken from that crashed node
>
> some time ago but now this node is gone and I have to take care for a
>
> restore for some reason.
>
>
>
> Am I able to make a full restore with that last backup from the offline
> node
>
> to any other still existing node with Recovering the archived WAL from the
> new
>
> selected node if I have activated archive_mode as “always”?
>
>
>
> Or is it strictly necessary to create a new full backup from the new node
>
> which is responsible for the backups after the failover or maybe after a
>
> Switchover, too?
>
>
>
> Thanks and best regards
>
>
>
> Dirk
>