Joe Rhodes via FreeIPA-users wrote:
> Hello all!
> 
> I have a CentOS 7 based FreeIPA system that I’m migrating to Rocky 9.
>  As suggested, I’ve created a Rocky 8 instance replica first.
> 
> As I’ve been working on this (in a dev environment first), I’ve gotten
> myself into a state where I have two servers in the config that I cannot
> delete.  (The VMs have been uninstalled and deleted.)
> 
> ipa server-find
> 
> ---------------------
> 
> 7 IPA servers matched
> 
> ---------------------
> 
>   Server name: ia-ipa-1.dev.purestake.tech
> 
>   Min domain level: 0
> 
>   Max domain level: 1
> 
> 
>   Server name: ia-ipa-2.dev.purestake.tech
> 
>   Min domain level: 0
> 
>   Max domain level: 1
> 
> 
>   Server name: joe-rocky-8.dev.purestake.tech
> 
>   Min domain level: 1
> 
>   Max domain level: 1
> 
> 
>   Server name: joe-rocky-9.dev.purestake.tech
> 
>   Min domain level: 1
> 
>   Max domain level: 1
> 
> 
>   Server name: oh-ipa-1.dev.purestake.tech
> 
>   Min domain level: 0
> 
>   Max domain level: 1
> 
> 
>   Server name: oh-ipa-2.dev.purestake.tech
> 
>   Min domain level: 0
> 
>   Max domain level: 1
> 
> 
>   Server name: oh-ipa-21.dev.purestake.tech
> 
>   Min domain level: 1
> 
>   Max domain level: 1
> 
> 
> 
> The two servers I want to delete are  joe-rocky-9  and oh-ipa-21.
> 
> Trying to delete either give me:
> 
> ipa server-del joe-rocky-9.dev.purestake.tech
> 
> Removing joe-rocky-9.dev.purestake.tech from replication topology,
> please wait...
> 
> ipa: ERROR: Server removal aborted: 
> 
> 
> Replication topology in suffix 'domain' is disconnected:
> 
> Topology does not allow server ia-ipa-1.dev.purestake.tech to replicate
> with servers:
> 
>     joe-rocky-9.dev.purestake.tech
> 
> Topology does not allow server ia-ipa-2.dev.purestake.tech to replicate
> with servers:
> 
>     joe-rocky-9.dev.purestake.tech
> 
> Topology does not allow server joe-rocky-8.dev.purestake.tech to
> replicate with servers:
> 
>     joe-rocky-9.dev.purestake.tech
> 
> Topology does not allow server joe-rocky-9.dev.purestake.tech to
> replicate with servers:
> 
>     joe-rocky-8.dev.purestake.tech
> 
>     oh-ipa-1.dev.purestake.tech
> 
>     oh-ipa-2.dev.purestake.tech
> 
>     ia-ipa-1.dev.purestake.tech
> 
>     oh-ipa-21.dev.purestake.tech
> 
>     ia-ipa-2.dev.purestake.tech
> 
> Topology does not allow server oh-ipa-1.dev.purestake.tech to replicate
> with servers:
> 
>     joe-rocky-9.dev.purestake.tech
> 
> Topology does not allow server oh-ipa-2.dev.purestake.tech to replicate
> with servers:
> 
>     joe-rocky-9.dev.purestake.tech
> 
> Topology does not allow server oh-ipa-21.dev.purestake.tech to replicate
> with servers:
> 
>     joe-rocky-9.dev.purestake.tech.
> 
> 
> and attempting to delete, ignoring the replication topology:
> 
> ipa server-del joe-rocky-9.dev.purestake.tech --ignore-topology-disconnect
> 
> Removing joe-rocky-9.dev.purestake.tech from replication topology,
> please wait...
> 
> ipa: ERROR: Not allowed on non-leaf entry
> 
> 
> When I do a:  ipa topologysegment-find domain the server joe-rocky-9 is
> not listed in any of the segments.
> 
> I believe the issue is I have a bunch of replication issues regarding
> these two servers.  (I had been adding and removing them as I was
> finding the right way to go about my upgrade)  This command shows both
> of the servers:
> 
> 
> ldapsearch "nsds5ReplConflict=*"
> 
> 
> When I do the following search I see quite a few nsTombstone entries as
> children, which I assume is what’s blocking me from removing this DN
> (either using the ipa server-del command or the ldapdelete command).
> 
> 
> ldapsearch -D "cn=Directory Manager” -W "(objectclass=nsTombstone)" dn
> 
> 
> 
> When I do this command:
> 
> 
> ipa-replica-manage  list-ruv
> 
> Replica Update Vectors:
> 
> ia-ipa-1.dev.purestake.tech:389: 4
> 
> oh-ipa-1.dev.purestake.tech:389: 7
> 
> ia-ipa-2.dev.purestake.tech:389: 3
> 
> oh-ipa-2.dev.purestake.tech:389: 8
> 
> joe-rocky-8.dev.purestake.tech:389: 19
> 
> Certificate Server Replica Update Vectors:
> 
> ia-ipa-1.dev.purestake.tech:389: 6
> 
> joe-rocky-8.dev.purestake.tech:389: 20
> 
> ia-ipa-2.dev.purestake.tech:389: 5
> 
> 
> I get the expected list of RUVs, without the two servers I want to
> delete.  Only the serves that are really on-line and legit show up.  So
> I cannot use the “clean-ruv” command because the bad servers don’t show
> up with a replication ID.
> 
> When I do this:
> 
> ipa-replica-manage -p Extraordinary-northern-Conditioning-Idaho-7
> clean-dangling-ruv
> 
> 
> The server 'joe-rocky-9.dev.purestake.tech' appears to be offline.
> 
> The server 'oh-ipa-21.dev.purestake.tech' appears to be offline.
> 
> No dangling RUVs found
> 
> 
> 
> I see the two problematic entries timing out (as expected, since they
> don’t exist).
> 
> I’m just not sure how to remove these two dead servers.  It seems like I
> need to resolve or delete the nsTombstone children, but that doesn’t
> seem to be possible.
> 
> I’m kind of wondering if I’m at a point where I’ll need to do an
> ipa-backup/modify the ldif/ipa-restore to get rid of these?  I’m not
> even sure that’s possible.
> 
> Any help would be greatly appreciated.  

I'd look at the topology in the UI to see visually how the servers are
connected. It sounds like the topology sees joe-rocky-9 as the only
thing connecting most of the replicas.

You can use ipa topology-segment to create new links to other servers
and that should allow removing it.

rob
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