Re: AFFECTS: users of databases/lmdb

On Fri, 3 Jul 2026 08:29:33 +0200
Andrea Venturoli <[email protected]> wrote:

> On 7/2/26 21:05, FreeBSD ports/UPDATING: Alexander Kojevnikov wrote:
> > 
> >   AFFECTS: users of databases/lmdb <http://updating.kojevnikov.com/atom/
> >   ports>
> > 
> > 20260702:
> >    AFFECTS: users of databases/lmdb
> >    AUTHOR: [email protected]
> > 
> >    LMDB 1.0 introduced an incompatible on-disk file format change.
> >    Versions 0.9.x and 1.0.x databases are mutually incompatible.
> > 
> >    Before upgrading, export all existing databases using the old v0.9
> >    mdb_dump utility, then import them with the new v1.0 mdb_load after
> >    upgrading.  There is no support for opening v0.9 database files
> >    directly with LMDB 1.0.
> > 
> >    Example migration procedure:
> >    # mdb_dump -a /path/to/db > /tmp/mydb.dump
> >    # pkg upgrade databases/lmdb
> >    # mdb_load -f /tmp/mydb.dump /path/to/newdb
> 
> Hello.
> How does this affect Samba installations?
> Do we need to do this procedure?
> Does Samba do it automatically?
> Is it not neede in this specific case?
> 
>   bye & Thanks
> 	av.

Hi.

Not sure how samba uses lmdb (I'm not configuring samba
on my computer myself, but using smbfs to connect to NAS),
possible use-cases would be...

  *To store configuration

  *To store extended attributes / ACLs on local filesystems
   that doesn't support them natively

  *To store ID / password that are NOT assured to be exactly
   the same as underlying host OS (samba specific IDs / passwords)


Anyway, samba would be needed to be rebuilt if you upgrade
databases/lmdb, as the library major version is bumped
and shared object filename is changed.

lib/liblmdb.so.0 is switched to lib/liblmdb.so.1.0
(lib/liblmdb.so.1 would be a symlink to lib/liblmdb.so.1.0).


If you're not upgraded yet and not enough sure it's OK,
you can stick with previous version with
`pkg lock databases/lmdb`.

In this case, to be safest, you'll need to lock anything
(at least directly) depending upon databases/lmdb, too.

You can determine direct dependencies with
`pkg query %ro databases/lmdb`.

Regards.

-- 
Tomoaki AOKI    <[email protected]>