Re: Recommended way to transfer data from one cluster to the other?

[MJ J <mikedotjackson@gmail.com>]

https://www.youtube.com/watch?v=8vQmTZTq7nw

Amazon Snowmobile
On Tue, Aug 28, 2018 at 9:52 PM Karsten Heymann
<karsten.heymann@gmail.com> wrote:
>
> Hi,
>
> We're replacing our aging LDAP Cluster (Debian 7, slapd 2.4.40, 2
> masters with syncrepl and mirror mode, 2 slaves) with a new cluster of
> the same layout (2.4.44, probably 2.4.46, on Debian 9). I now wonder
> what the best way is to transfer the data from the old to the new
> cluster. As far as I can see, we have three options to transfer the
> data:
>
> 1) ldapsearch + ldapadd
> 2) slapcat + slapadd
> 3) Configure a temporary syncrepl rule on the new masters to fetch the
> data from the old ones.
>
> Which one is the preferred one? I would assume slapcat and slapadd,
> but I must admit I have not fully understood the purpose of the -S and
> -w switch. Should we somehow filter the *CSN-fields from the exported
> ldif as I assume they make no sense for the new cluster or are they
> automatically fixed when using slapadd with said options?
>
> I'm sorry if this topic has been discussed here before but my
> (probably lacking) google skills did not return anything obvious.
>
> Best regards
> Karsten
>