Hi,

Les Mikesell wrote on 2009-05-22 18:55:10 -0500 [Re: [BackupPC-users] Noob 
questions]:
> Daniel Carrera wrote:
> > Les Mikesell wrote:
> >> The quick fix might be a cron job to start/stop the service at 
> >> appropriate times for you. [...]
> > 
> > Snag is that I don't know ahead of time how long BackupPC needs to 
> > finish a given backup. I don't want to interrupt it part-way through a 
> > backup. I would be nice if I could get BackupPC to stop itself whenever 
> > it finishes doing a backup.

you *could* use the DumpPostUserCmd to send a serverMesg to shutdown BackupPC,
but I wouldn't recommend that for two reasons:

1.) BackupPC_link needs to run after a backup, so you'd have to delay the
    shutdown for a short but unknown time ('at now + 5 minutes' ?).

2.) BackupPC_nightly needs to run on a regular basis if you want backup
    expiry to work correctly (i.e. actually free any space) and the statistics
    to say anything meaningful.

> > Then it would look more like a cron job and 
> > less like an always-an daemon. But I don't suppose that there is an easy 
> > way to make it do that.
> 
> I don't think scheduled stopping/starting would be a problem in practice 
> - and if it is, perhaps you'll be convinced to add a dedicated server to 
> handle it.   The timing is pretty consistent unless

... something unexpected happens. I think we are doing backups to guard
against the effects of unexpected things.

No, using BackupPC "like a cron job" is already a kludge. If you do that, at
least do it properly.

Regards,
Holger

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