Re: [HACKERS] Creating backup history files for backups taken from standbys

Hi!

On 2018-03-02 02:29:13 +0900, Fujii Masao wrote:
> On Fri, Feb 2, 2018 at 2:06 PM, Michael Paquier
> <michael(dot)paquier(at)gmail(dot)com> wrote:
> > On Fri, Feb 02, 2018 at 12:47:26AM +0900, Fujii Masao wrote:
> >> The patch basically looks good to me. Here are some small comments.
> >>
> >> <para>
> >> The backup history file is not created in the database cluster backed up.
> >> </para>
> >>
> >> The above should be deleted in pg_basebackup.sgml.
> >>
> >> * During recovery, since we don't use the end-of-backup WAL
> >> * record and don't write the backup history file, the
> >>
> >> This comment needs to be updated in xlog.c.
> >
> > Thanks Fujii-san for the review. Indeed those portions need a refresh..
>
> Thanks for updating the patch!

You'd claimed this patch as a committer. You're still planning to commit
it?

> + * write a backup history file with the same name.
>
> So more than one backup history files with the same name
> but the diffferent content can be created and archived.
> Isn't this problematic because the backup history file that
> users want to use later might be overwritten unexpectedly?

Michael?

Greetings,

Andres Freund