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From: | Kenneth Loafman |
Subject: | Re: [Duplicity-talk] Only sync remote metadata from primary backup chain |
Date: | Thu, 6 Jul 2017 09:33:48 -0500 |
OK, I found a "workaround": Before I create a new full backup, I simply move the remote files to a new location. So for duplicity it looks like the backup location is fresh and it even deletes the local cache automatically, starting with a full backup (which I wanted anyways).
If I later want to restore from that backup I will have to move the files back into place on that remote.
-- Markus
--
On 01.07.17 13:57, Markus Doits via Duplicity-talk wrote:
> Hello,
>
> I've been using duplicity to backup since 2014 with a full backup every 3 months, so I have some secondary backup chains. Additionally backups go to multiple separate places (each having multiple backup chains). My local cache folder is now over 70gb big and I had the idea to delete the cache for the secondary chains to free up space - since they are only needed when restoring files, but not for new backups (to the primary chains).
>
> So I deleted the cache files (for example duplicity-full-signatures.20141106T121637Z.sigtar.gpg) and reclaimed a lot of space.
>
> But after the next backup run, I saw this in the logs:
>
> Synchronizing remote metadata to local cache...
> Copying duplicity-full-signatures.20141106T121637Z.sigtar.gpg to local cache.
> Copying duplicity-full-signatures.20150505T234205Z.sigtar.gpg to local cache.
> Copying duplicity-full-signatures.20150904T234123Z.sigtar.gpg to local cache.
> Copying duplicity-full-signatures.20151205T004128Z.sigtar.gpg to local cache.
> ...
>
> Is this normal? If yes, is there an option to skip synchronizing the secondary backup chain's metadata I don't find in the man page? If I understand it correctly, I only need them to restore files from those chains, since I will not do new incremental backups to that secondary backup chains. I'd imagine duplicity to only sync the metadata in the case I want to restore files from those chains.
>
> Or is there any other way to reduce the cache usage (besides completely deleting the remote backups which I don't want).
>
> For reference: I'm using duplicity with duply (http://duply.net/), so maybe this triggers the behavior I describe if this is not normal behavior.
>
> -- Markus
>
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