Les Mikesell wrote at about 12:15:34 -0500 on Tuesday, September 1, 2009:
 > Jeffrey J. Kosowsky wrote:
 > >  > 2) you lose power/crash while expiring
 > > This would just mean that expiry not completed meaning that some
 > > expired files not deleted. Same problem occurs if power/crash during
 > > BackupPC_Nightly. The actual deletion is atomic. Just run expiry again.
 > 
 > The actual deletion can't be atomic - you have to one thing in the 
 > database and one thing in the filesystem.

No. Expiry only involves deletions to the filesystem. i.e., you delete
files that no longer are referenced in the database. No changes need
to be made to the database. If something crashes, just start again.

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