On Thu, 2021-01-07 at 07:48 +0000, kingswindsor wrote:
> Yes, I'd expect v3 pools to go stay the same or down if anything but they are 
> increasing in size.  And the pool files (either v3 or v4) should not grow 
> anyway- all active hosts are set for compression.   
> 
> The documentation has these bits which are relevant 
> 
> "V3 migration: nothing specific is needed. V4 can browse/view/restore V3 
> backups.
> 
> "When a V4 backup is first done, BackupPC_backupDuplicate is run to duplicate 
> the most recent V3 backup to create a new V4 backup. A "filled" view of the 
> most recent V3 backup is used to create a "filled" V4 backup tree.
> This step could be time consuming, since every file needs to be read (as a V3 
> file) and written as a V4 file. However, the V4 pooling code knows about the 
> V3 pool, so it will move the V3 pool file into the V4 pool. So this 
> duplication process doesn't burn a lot of pool storage space, but every file 
> still needs to be read (to compute the MD5 digest) and "written" (really just 
> matching/linking)."
> On 7 Jan 2021, at 06:25, Sorin Srbu <sorin.s...@gmail.com> wrote:
> > On Wed, 2021-01-06 at 22:34 +0000, George King wrote:
> > >  Hi everyone,
> > >  
> > >  Sorry if I'm missing something obvious but would anyone have any ideas 
> > > why my V3 pool is growing (hugely) after upgrading to v4.4.0.  It doesn't 
> > > make sense to me.  Over 3 days it has grown from 219Gb to 383Gb and there 
> > > is only one client that is not compressed (localhost) which has not 
> > > backed up since the upgrade (subject of a different post).   The V3 cPool 
> > > has also grown (16-28Tb, although the graph doesn't seem to show this) 
> > > while the V4 cPool is static at 8.84Tb.  Thanks
> > 
> > I'm speculating a bit now, and trying to remember half-forgotten facts...
> > Isn't this expected when changing from v3 to v4, since two pools are active?
> > 
> > Eventually the v3 pool will be emptied and everything will be moved over to
> > the v4 pool.
> > 
> > IIRC, there should be a tool to convert the v3 pool to v4 and speed things
> > up.

Did the BackupPC_backupDuplicate run finish?
I'm thinking it's not done yet, so backups are still added to the v3 pool
maybe?

-- 

Kind regards,
Sorin Srbu

Find my OpenPGP public key here:
https://cloud.srbu.se/index.php/s/KeEsCCDsG7PZG7N

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