[Samba] Problem with not fixable dangling forward links

[Andrew Bartlett]

On Tue, 2017-11-21 at 11:21 +0100, Achim Gottinger via samba wrote:
> Hello List,
> 
> In preparation to update my samba ad-dc's running debian wheezy with 
> backported samba 4.6.8 to 4.7.3.
> I'd like to fix two errors showing up in dbcheck whom hab been reported 
> by dbckech --cross-ncs for an long time but without causing any issues 
> so far.
> 
> I'm getting this error on my main dc
> 
> root at server:~# samba-tool dbcheck --cross-ncs
> Checking 4188 objects
> ERROR: no target object found for GUID component for siteList in object 
> CN=DEFAULTIPSITELINK,CN=IP,CN=Inter-Site 
> Transports,CN=Sites,CN=Configuration,DC=samba-list,DC=loc - 
> <GUID=d4f41749a1595a43871ab1d72f24fe6b>;<RMD_ADDTIME=130015150890000000>;<RMD_CHANGETIME=130015150890000000>;<RMD_FLAGS=0>;<RMD_INVOCID=af301252bb781543b57dbd7cb773d46f>;<RMD_LOCAL_USN=4762>;<RMD_ORIGINATING_USN=4762>;<RMD_VERSION=0>;CN=Test,CN=Sites,CN=Configuration,DC=samba-list,DC=loc
> Not removing dangling forward link
> ERROR: no target object found for GUID component for siteList in object 
> CN=DEFAULTIPSITELINK,CN=IP,CN=Inter-Site 
> Transports,CN=Sites,CN=Configuration,DC=samba-list,DC=loc - 
> <GUID=596bd8ae9e8bc94eab99ad3c12e22132>;<RMD_ADDTIME=130739077850000000>;<RMD_CHANGETIME=130739077850000000>;<RMD_FLAGS=0>;<RMD_INVOCID=af301252bb781543b57dbd7cb773d46f>;<RMD_LOCAL_USN=453494>;<RMD_ORIGINATING_USN=453494>;<RMD_VERSION=0>;CN=Grafing,CN=Sites,CN=Configuration,DC=samba-list,DC=loc
> Not removing dangling forward link
> Please use --fix to fix these errors
> Checked 4188 objects (2 errors)

If these issues don't cause you replication failures or any other
issue, then you can ignore them.  In general, don't edit the backend
DB. 

However we have patches the fix some of this currently under review,
which will then be backported. 

I hope this helps.

Andrew Bartlett

-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT   
https://catalyst.net.nz/services/samba