On 31.05.2013 20:38, Joe Conway wrote:
I can check for the presence of $PGDATA/backup_label in order to detect
a backup in progress (i.e. pg_start_backup() has been run and
pg_stop_backup() has not yet been run).
However there is a period of time after pg_start_backup() is first
executed to when it completes, during which backup_label file does not
exist yet, but the backup has essentially been started. Is there any
way to detect this state?
What are you trying to accomplish? Even if you eliminate that window,
it's always possible that a backup starts just after you've checked that
there is no backup in progress.
- Heikki
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