On Sun, Jul 2, 2023 at 4:14 PM Viktor Dukhovni via Postfix-users <
postfix-users@postfix.org> wrote:
> On Sun, Jul 02, 2023 at 07:03:47PM -0400, Viktor Dukhovni via
> Postfix-users wrote:
>
> > The on-disk file format of Berkeley DB is not standardised across major
> > versions. A system upgrade may require rebuilding the aliases ".db"
> > file due to an incompatible Berkeley DB driver.
>
> I should perhaps haved mentioned (and recommended) "cdb", which I
> personally instead of Berkeley DB. With "cdb" you get a stable on-disk
> format that won't change across system upgrades:
>
> default_database_type = cdb
> indexed = ${default_database_type}:${config_directory}/
> alias_database = ${indexed}aliases
> alias_maps = ${indexed}aliases
> canonical_maps = ${indexed}canonical
> smtp_tls_policy_maps = ${indexed}tls-policy
> transport_maps = ${indexed}transport
> virtual_alias_maps = ${indexed}valias
> virtual_mailbox_maps = ${indexed}vmbox
>
>
Nice, thanks for mentioning this. And yes, I have been bitten by the
nature of Berkley DB across major updates in other areas. I will
investigate switching over to cbd.
Thanks,
Patrick
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