[389-users] Re: Migration: importing an OU to a new instance

On 9/13/23 18:44, tdarby@arizona.edu wrote:
> I've read this doc:
> https://access.redhat.com/documentation/en-us/red_hat_directory_server/12/html/importing_and_exporting_data/importing-data-to-directory-server_importing-and-exporting-data
>
> The export from server A to an LDIF file works and I've done some testing but it seems like the import feature always deletes existing OUs on server B that aren't in the exported LDIF file. Am I missing something? I'd like to simply get an LDIF of all the entries in Server A and populate only that OU in server B.
THe export works at suffix (or backend) level, it exports (from db to
ldif) all the entries of that suffix. The import works in the opposite
way, it imports all the entries from the ldif. If you want only a subset
of the entries you need to edit LDIF and remove the entries you do not want.
>
> Related, this bit is bewildering
> Optional: By default, Directory Server sets the entry update sequence numbers (USNs) of all imported entries to 0. To set an alternative initial USN value, set the nsslapd-entryusn-import-initval parameter. For example, to set USN for all imported values to 12345, enter:

You are correct [1]. if usn plugin is enabled, all the imported entry
will get attribute 'entryusn: <value of nsslapd-entryusn-import-initval'
(instead of '0')

[1]
https://access.redhat.com/documentation/en-us/red_hat_directory_server/11/html/administration_guide/populating_directory_databases#entryusn-initval

best regards
thierry

>
> I don't understand what this means or the consequences of taking the default or not. Server B is already in multi-supplier replication with other servers, so I worry about screwing that up with any import choices I might make.
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