samba - Mar 2016 - Samba AD/DC crashed again, third time in as many months

Hi Marc,

No, no schema adjustments.  This is the only domain controller, there have
been no changes to this domain since I rebuilt it about a month ago.  Samba
keeps failing like this almost every month.

JS
On Mar 2, 2016 11:59 AM, "Marc Muehlfeld" <mmuehlfeld at
samba.org> wrote:
> Hello,
>
> Am 02.03.2016 um 17:39 schrieb IT Admin:
> > ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
> >   ldb: dsdb_get_schema: refresh_fn() failed
> > [2016/03/02 11:27:17.042857,  0]
> > ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
> >   ldb: schema_load_init: dsdb_get_schema failed
> > [2016/03/02 11:27:17.042887,  0]
> > ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
> >   ldb: module schema_load initialization failed : Operations error
>
>
> * Did you made any schema modifications or joined a 2012 or later DC?
>
> * Is this the only DC in your forest?
>
>
> Regards,
> Marc
>

On 02/03/16 17:07, IT Admin wrote:
> Hi Marc,
>
> No, no schema adjustments.  This is the only domain controller, there have
> been no changes to this domain since I rebuilt it about a month ago.  Samba
> keeps failing like this almost every month.
>
> JS
> On Mar 2, 2016 11:59 AM, "Marc Muehlfeld" <mmuehlfeld at
samba.org> wrote:
>
>> Hello,
>>
>> Am 02.03.2016 um 17:39 schrieb IT Admin:
>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>    ldb: dsdb_get_schema: refresh_fn() failed
>>> [2016/03/02 11:27:17.042857,  0]
>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>    ldb: schema_load_init: dsdb_get_schema failed
>>> [2016/03/02 11:27:17.042887,  0]
>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>    ldb: module schema_load initialization failed : Operations error
>>
>> * Did you made any schema modifications or joined a 2012 or later DC?
>>
>> * Is this the only DC in your forest?
>>
>>
>> Regards,
>> Marc
>>
If I remember correctly, aren't you the guy that had the problem with 
provision not finding the schema files ?

Can you run this in a terminal:

env | grep PATH

and post the result ?

Rowland

Am 02.03.2016 um 18:07 schrieb IT Admin:
> No, no schema adjustments.  This is the only domain controller, there have
> been no changes to this domain since I rebuilt it about a month ago.  Samba
> keeps failing like this almost every month.
Can you tell us some more information about your environment
* Samba DBs are stored on a local HDD, NFS, Gluster, iSCSI,...
* Is the AD only used for authentication? Or do other applications are
connected, too? Especially if there are any that are trying to write to AD
* How do you do changes in AD? ADUC? samba-tool, other tools?
* etc.


Regards,
Marc

Hi Rowland,

I'm the guy who had this exact issue in January, you worried extensively
with me to resolve the issue.  We ended up building samba from source,
provisioning again (which led to rooting out remnants of the older samba
release), and then you worked with me to help me get samba_backup
implemented.

Here's the output of the command you requested I run:

PATH=/usr/local/samba/bin:/usr/local/samba/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/local/samba/bin:/usr/local/samba/sbin

JS
On Mar 2, 2016 12:33 PM, "Rowland penny" <rpenny at samba.org>
wrote:
> On 02/03/16 17:07, IT Admin wrote:
>
>> Hi Marc,
>>
>> No, no schema adjustments.  This is the only domain controller, there
have
>> been no changes to this domain since I rebuilt it about a month ago.
>> Samba
>> keeps failing like this almost every month.
>>
>> JS
>> On Mar 2, 2016 11:59 AM, "Marc Muehlfeld" <mmuehlfeld at
samba.org> wrote:
>>
>> Hello,
>>>
>>> Am 02.03.2016 um 17:39 schrieb IT Admin:
>>>
>>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>>    ldb: dsdb_get_schema: refresh_fn() failed
>>>> [2016/03/02 11:27:17.042857,  0]
>>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>>    ldb: schema_load_init: dsdb_get_schema failed
>>>> [2016/03/02 11:27:17.042887,  0]
>>>> ../lib/ldb-samba/ldb_wrap.c:72(ldb_wrap_debug)
>>>>    ldb: module schema_load initialization failed : Operations
error
>>>>
>>>
>>> * Did you made any schema modifications or joined a 2012 or later
DC?
>>>
>>> * Is this the only DC in your forest?
>>>
>>>
>>> Regards,
>>> Marc
>>>
>>>
> If I remember correctly, aren't you the guy that had the problem with
> provision not finding the schema files ?
>
> Can you run this in a terminal:
>
> env | grep PATH
>
> and post the result ?
>
> Rowland
>
> --
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>

Samba is compiled from source.
Samba DB is stored on local RAID array.
Changes to AD are done using ADUC from a Windows 7 box.
AD is used for authentication, user shares (folder redirection), and shared
folders.

JS
On Mar 2, 2016 12:40 PM, "Marc Muehlfeld" <mmuehlfeld at
samba.org> wrote:
> Am 02.03.2016 um 18:07 schrieb IT Admin:
> > No, no schema adjustments.  This is the only domain controller, there
> have
> > been no changes to this domain since I rebuilt it about a month ago.
> Samba
> > keeps failing like this almost every month.
>
> Can you tell us some more information about your environment
> * Samba DBs are stored on a local HDD, NFS, Gluster, iSCSI,...
> * Is the AD only used for authentication? Or do other applications are
> connected, too? Especially if there are any that are trying to write to AD
> * How do you do changes in AD? ADUC? samba-tool, other tools?
> * etc.
>
>
> Regards,
> Marc
>