[Bacula-devel] Fwd: [Bacula-users] Unlimited Retention

[Dan Langille <dan@xxxxxxxxxxxx>]

FYI

Begin forwarded message:

> From: LeJav <lejav@xxxxxxxxxxx>
> Date: October 23, 2008 4:10:25 AM EDT
> To: bacula-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: [Bacula-users] Unlimited Retention
>
> Hello,
>
> Here is my problem: I want to backup my system with normal strategy
>  (full every week, incremental, retention....), but I have also data  
> on
>  this server that I want to archive indefinitely (without retention).
> To do that, i declared first retention period for this job as 100  
> years.
> But it did not work.
> Investigating in source code, I found that:
>
> ua_prune.c
> ...
>   period = client->FileRetention;
>   now = (utime_t)time(NULL);
>
>   /* Select Jobs -- for counting */
>   Mmsg(query, count_select_job, edit_uint64(now - period, ed1),
>        edit_int64(cr.ClientId, ed2));
>   Dmsg3(050, "select now=%u period=%u sql=%s\n", (uint32_t)now,
>               (uint32_t)period, query.c_str());
> ...
>
> and : time() returns the time since the Epoch (00:00:00 UTC, January  
> 1, 1970), measured in seconds.
> for instance, today, now = 1224742378 = 38.8 years
> this means that if i set a retention > 39 years, now-period will be  
> negative,
>  and then a very very big number in unsigned int64, so jobs will be  
> always pruned
>
> for information, there is no such problem for volume retention:
> next_vol.c :
> ...
>   if ((mr->LastWritten + mr->VolRetention) < (utime_t)time(NULL)
> ...
> everything is utime_t = int64_t
>  so, there is here no problem
>
>
> it would be nice to have for retention a keyword like "infinite".
>
> The solution I have found is to set AutoPrune = no for the client,  
> and to set
>  pruning for files, jobs and volumes for the jobs which need it.
>
> Any other suggestion ?
>
> Thx
>
>
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-- 
Dan Langille
http://langille.org/





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