[Samba] Problem with not fixable dangling forward links

Andrew Bartlett
Sat, 25 Nov 2017 03:39:06 -0000

On Fri, 2017-11-24 at 11:55 +1300, Andrew Bartlett via samba
wrote:
> 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.

These patches are now in master and I see metze already has a branch
for 4.7 so I expect those to be backported soon.

Andrew Bartlett

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