I pushed a commit
<https://github.com/backuppc/backuppc/commit/7273cd15b0414c6551df4066b52ecc042e1716b6>
that implements nightly pool checking on a configurable portion of the pool
files. It needs the latest version of backuppc-xs, 0.61.
Craig
On Mon, Jun 8, 2020 at 4:22 PM Michael Huntley <mich...@huntley.net> wrote:
> I’m fine with both action items.
>
> I back up millions of emails and so far the restores I’ve performed have
> never been an issue.
>
> mph
>
>
>
> On Jun 8, 2020, at 3:01 PM, Craig Barratt via BackupPC-users <
> backuppc-users@lists.sourceforge.net> wrote:
>
>
> Jeff & Guillermo,
>
> Agreed - it's better to scan small subsets of the pool. I'll add that
> to BackupPC_refCountUpdate (which does the nightly pool scanning to delete
> unused files and update stats).
>
> Craig
>
> On Mon, Jun 8, 2020 at 2:35 PM <backu...@kosowsky.org> wrote:
>
>> Guillermo Rozas wrote at about 16:41:03 -0300 on Monday, June 8, 2020:
>> > > While it's helpful to check the pool, it isn't obvious how to fix
>> any errors.
>> >
>> > Sure. Actually I've put aside to interpret the error and the file
>> > involved until I find an actual error (so I hope to never need that
>> > information! :) )
>> >
>> > > So it's probably best to have rsync-bpc implement the old
>> $Conf{RsyncCsumCacheVerifyProb} setting. It could do that by randomly
>> skipping the --checksum short-circuit during a full. For that fraction of
>> files, it would do a full rsync check and update, which would update the
>> pool file if they are not identical.
>> >
>> > That would be a good compromise. It makes the fulls a bit slower in
>> > servers with poor network and slow disks, but it's more clear what to
>> > do in case of error. Maybe also add a "warning of possible pool
>> > corruption" if the stored checksum and the new checksum differs for
>> > those files?
>> >
>>
>> The only problem with this approach is that it never revisits pool
>> files that aren't part of new backups.
>>
>> That is why I suggested a nightly troll through the cpool/pool to
>> check md5sums going sequentially through X% each night...
>>
>>
>> _______________________________________________
>> BackupPC-users mailing list
>> BackupPC-users@lists.sourceforge.net
>> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
>> Wiki: http://backuppc.wiki.sourceforge.net
>> Project: http://backuppc.sourceforge.net/
>>
> _______________________________________________
> BackupPC-users mailing list
> BackupPC-users@lists.sourceforge.net
> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
> Wiki: http://backuppc.wiki.sourceforge.net
> Project: http://backuppc.sourceforge.net/
>
> _______________________________________________
> BackupPC-users mailing list
> BackupPC-users@lists.sourceforge.net
> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
> Wiki: http://backuppc.wiki.sourceforge.net
> Project: http://backuppc.sourceforge.net/
>
_______________________________________________
BackupPC-users mailing list
BackupPC-users@lists.sourceforge.net
List: https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki: http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/
