Re: backup_label in a crash recovery

Fujii Masao wrote:
> When a crash occurs before calling pg_stop_backup(),
> the subsequent crash recovery causes the FATAL error
> and outputs the following HINT message.
>
>     If you are not restoring from a backup, try removing the file
> \"%s/backup_label\"."
>
> I wonder why backup_label isn't automatically removed
> in normal crash recovery case. Is this for the fail-safe
> protection; prevent admin from restoring from a backup
> wrongly without creating recovery.conf? Or another?
>
> If that's intentional, a clusterware for shared disk
> failover system should remove backup_label whenever
> doing failover. Otherwise, when a crash occurs during
> online-backup, the failover would fail.

I do not know if there is a good reason why the server does
not ignore backup_label if recovery.conf is not present.

But as it is, any failover system should definitely remove
backup_label.

Yours,
Laurenz Albe