Simon Riggs wrote:
> On Tue, 2010-04-27 at 20:14 +0300, Heikki Linnakangas wrote:
>> Simon Riggs wrote:
>>> On Tue, 2010-04-27 at 18:13 +0300, Heikki Linnakangas wrote:
>>>> Simon Riggs wrote:
>>>>> If pg_stop_backup() is run it creates the .backup file in the archive.
>>>>> In the absence of that file, we should be able to work out that
>>>>> pg_stop_backup() was not run. 
>>>> It's just as likely that the file is there even though the backup didn't
>>>> finish, though.
>>> It's possible, but not likely. It would need to break at a very specific
>>> place for that to be the case. Whereas the test I explained would work
>>> for about 99% of the time between start and stop backup, except for the
>>> caveat I explained also.
>> I don't understand how you arrived at that figure. 
> 
> You're talking about the backup_label file, I'm talking about
> the .backup file in the archive.

Oh, the backup history file. We stopped relying on that with the
introduction of the end-of-backup record, to make life easier for
streaming replication, and because it's simpler anyway. I don't think we
should go back to it.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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