thr3ads.net - samba - [Samba] Initial replication halts with "The handle is invalid." (msDS-NC-Replica-Locations corrupted?) [Jan 2017]

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Rowland Penny

2017-Jan-16 09:18 UTC

[Samba] Initial replication halts with "The handle is invalid." (msDS-NC-Replica-Locations corrupted?)

On Sun, 15 Jan 2017 20:14:12 -0500
Adam Tauno Williams via samba <samba at lists.samba.org> wrote:
> On Sun, 2017-01-15 at 14:39 -0500, Adam Tauno Williams via samba
> wrote:
> > Adding a Windows2008RC to an SerNET S4 4.5.3 (forest level 2008R2)
> > domain hangs at replication CN=Configuration received 1630 out of
> > approximately 1663 objects.
> > Only message I can find in the event log on the 2008R2 server is - 
> > Internal event: The local directory service received an exception
> > from a remote procedure call (RPC) connection. Extended error
> > information is not available. 
> > directory service: 
> > LARKIN27.micore.us 
> > Additional Data 
> > Error value: 
> > The handle is invalid. (6)
> > How can one debug where, or on what object, it is hung up or stops?
> 
> samba-tool's dbcheck finds only two errors in cn=Configuration, but it
> does not repair them.  These appear to be references to an original,
> long since demoted, DC.  But these values appear in neither the
> results of an ldbsearch or via ADSI edit.
> 
> [root at larkin27 ~]#  ldbsearch --cross-ncs -H
> /var/lib/samba/private/sam.ldb -b
> "CN=Configuration,DC=micore,DC=US"  - s sub
> CN=3ad6381a-9725-4e28-8157-a5a3fde68a43 msDS-NC-Replica-Locations
> 
> # record 1
> dn: CN=3ad6381a-9725-4e28-8157-
> a5a3fde68a43,CN=Partitions,CN=Configuration,DC=micore,DC=us
> msDS-NC-
> Replica-Locations: CN=NTDS Settings,CN=LARKIN26,CN=Servers,CN=Default-
>  First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
> msDS-NC-Replica-Locations: CN=NTDS
> Settings,CN=LARKIN28,CN=Servers,CN=Default-
> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
> msDS-NC-Replica-Locations: CN=NTDS
> Settings,CN=LARKIN27,CN=Servers,CN=Default-
> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
> 
> 
> [root at larkin27 ~]# samba-tool dbcheck --cross-ncs --fix --yes
> Checking 8411 objects
> ERROR: no target object found for GUID component for msDS-NC-Replica-
> Locations in object CN=3ad6381a-9725-4e28-8157-
> a5a3fde68a43,CN=Partitions,CN=Configuration,DC=micore,DC=us -
>
<GUID=7d3f95a5cdfa1246b1fb2fcd16e5f877>;<RMD_ADDTIME=130000065100000000
>
>;<RMD_CHANGETIME=130000065100000000>;<RMD_FLAGS=0>;<RMD_INVOCID=01db57
>
fd8d4ddd469aee9cbd36abb3e1>;<RMD_LOCAL_USN=5160>;<RMD_ORIGINATING_USN=3
> 630>;<RMD_VERSION=0>;CN=NTDS
Settings,CN=BARBEL,CN=Servers,CN=Default-
> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
> Not removing dangling forward link
> ERROR: no target object found for GUID component for msDS-NC-Replica-
> Locations in object CN=55b4d7f1-b1b1-4843-ae00-
> 7908adf44ffa,CN=Partitions,CN=Configuration,DC=micore,DC=us -
>
<GUID=7d3f95a5cdfa1246b1fb2fcd16e5f877>;<RMD_ADDTIME=130000065100000000
>
>;<RMD_CHANGETIME=130000065100000000>;<RMD_FLAGS=0>;<RMD_INVOCID=01db57
>
fd8d4ddd469aee9cbd36abb3e1>;<RMD_LOCAL_USN=5134>;<RMD_ORIGINATING_USN=3
> 629>;<RMD_VERSION=0>;CN=NTDS
Settings,CN=BARBEL,CN=Servers,CN=Default-
> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
> Not removing dangling forward link
> 
> 
> Have a look at this bug report:

https://bugzilla.samba.org/show_bug.cgi?id=12385

Rowland

Adam Tauno Williams

2017-Jan-16 16:15 UTC

head link

[Samba] Initial replication halts with "The handle is invalid." (msDS-NC-Replica-Locations corrupted?)

Quoting Rowland Penny via samba <samba at
lists.samba.org>:>> samba-tool's dbcheck finds only two errors in cn=Configuration, but
it
>> does not repair them.  These appear to be references to an original,
>> long since demoted, DC.  But these values appear in neither the
>> results of an ldbsearch or via ADSI edit.
> Have a look at this bug report:
> https://bugzilla.samba.org/show_bug.cgi?id=12385
Thanks.  I have checked out master and built it [**1];  Bug#12297  
[**2] indicates I can run samba-tool from the build of the checkout.   
I assume tombstone expunge, even for CN=Configuration, runs against  
sam.ldb???  So the correct syntax is -

[ADC28 samba]# bin/samba-tool domain tombstones expunge -H  
/var/lib/samba/private/sam.ldb

    ???

[**1]
   git clone https://git.samba.org/samba.git
   cd samba/
   yum install gcc libacl-devel python-devel gnutls-devel openldap-devel
   ./configure
   make
   ls bin/samba-tool

[**2]
   https://bugzilla.samba.org/show_bug.cgi?id=12297
>> [root at larkin27 ~]#  ldbsearch --cross-ncs -H
>> /var/lib/samba/private/sam.ldb -b
>> "CN=Configuration,DC=micore,DC=US"  - s sub
>> CN=3ad6381a-9725-4e28-8157-a5a3fde68a43 msDS-NC-Replica-Locations
>> # record 1
>> dn: CN=3ad6381a-9725-4e28-8157-
>> a5a3fde68a43,CN=Partitions,CN=Configuration,DC=micore,DC=us
>> msDS-NC-
>> Replica-Locations: CN=NTDS Settings,CN=LARKIN26,CN=Servers,CN=Default-
>>  First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
>> msDS-NC-Replica-Locations: CN=NTDS
>> Settings,CN=LARKIN28,CN=Servers,CN=Default-
>> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
>> msDS-NC-Replica-Locations: CN=NTDS
>> Settings,CN=LARKIN27,CN=Servers,CN=Default-
>> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
>>
>>
>> [root at larkin27 ~]# samba-tool dbcheck --cross-ncs --fix --yes
>> Checking 8411 objects
>> ERROR: no target object found for GUID component for msDS-NC-Replica-
>> Locations in object CN=3ad6381a-9725-4e28-8157-
>> a5a3fde68a43,CN=Partitions,CN=Configuration,DC=micore,DC=us -
>>
<GUID=7d3f95a5cdfa1246b1fb2fcd16e5f877>;<RMD_ADDTIME=130000065100000000
>>
>;<RMD_CHANGETIME=130000065100000000>;<RMD_FLAGS=0>;<RMD_INVOCID=01db57
>>
fd8d4ddd469aee9cbd36abb3e1>;<RMD_LOCAL_USN=5160>;<RMD_ORIGINATING_USN=3
>> 630>;<RMD_VERSION=0>;CN=NTDS
Settings,CN=BARBEL,CN=Servers,CN=Default-
>> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
>> Not removing dangling forward link
>> ERROR: no target object found for GUID component for msDS-NC-Replica-
>> Locations in object CN=55b4d7f1-b1b1-4843-ae00-
>> 7908adf44ffa,CN=Partitions,CN=Configuration,DC=micore,DC=us -
>>
<GUID=7d3f95a5cdfa1246b1fb2fcd16e5f877>;<RMD_ADDTIME=130000065100000000
>>
>;<RMD_CHANGETIME=130000065100000000>;<RMD_FLAGS=0>;<RMD_INVOCID=01db57
>>
fd8d4ddd469aee9cbd36abb3e1>;<RMD_LOCAL_USN=5134>;<RMD_ORIGINATING_USN=3
>> 629>;<RMD_VERSION=0>;CN=NTDS
Settings,CN=BARBEL,CN=Servers,CN=Default-
>> First-Site-Name,CN=Sites,CN=Configuration,DC=micore,DC=us
>> Not removing dangling forward link

Adam Tauno Williams

2017-Jan-16 19:03 UTC

head link

[Samba] Initial replication halts with "The handle is invalid." (msDS-NC-Replica-Locations corrupted?)

Quoting Adam Tauno Williams via samba <samba at
lists.samba.org>:> Quoting Rowland Penny via samba <samba at lists.samba.org>:
>>> samba-tool's dbcheck finds only two errors in cn=Configuration,
but it
>>> does not repair them.  These appear to be references to an
original,
>>> long since demoted, DC.  But these values appear in neither the
>>> results of an ldbsearch or via ADSI edit.
>> Have a look at this bug report:
>> https://bugzilla.samba.org/show_bug.cgi?id=12385
> Thanks.  I have checked out master and built it [**1];  Bug#12297  
> [**2] indicates I can run samba-tool from the build of the checkout.  
>  I assume tombstone expunge, even for CN=Configuration, runs against  
> sam.ldb???  So the correct syntax is -
> [ADC28 samba]# bin/samba-tool domain tombstones expunge -H  
> /var/lib/samba/private/sam.ldb

This does not appear to have reaped any links.


[root at larkin28 samba]# bin/samba-tool domain tombstones expunge -d 10  
-H /var/lib/samba/private/sam.ldb
...
lpcfg_servicenumber: couldn't find ldb
Initial schema load needed, as we have no existing schema, seq_num: 64
schema_fsmo_init: we are master[no] updates allowed[no]
Initial schema load needed, as we have no existing schema, seq_num: 64
schema_fsmo_init: we are master[no] updates allowed[no]
gendb_search_v: CN=Directory Service,CN=Windows  
NT,CN=Services,CN=Configuration,DC=micore,DC=us  
objectClass=nTDSService -> 1
Doing a full scan on CN=Configuration,DC=micore,DC=us and looking for  
deleted objects
Doing a full scan on DC=micore,DC=us and looking for deleted objects
Doing a full scan on DC=DomainDnsZones,DC=micore,DC=us and looking for  
deleted objects
Doing a full scan on DC=ForestDnsZones,DC=micore,DC=us and looking for  
deleted objects
Removed 0 objects and 0 links successfully

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