[Samba] Error with dbcheck after upgrade to 4.10.2

[Pinja-Liina Jalkanen]

Hi Louis and others,

While I cannot speak for the GP, I've had this same problem since I
recently (finally!) upgraded to Samba 4.8 (4.8.11). In fact, the very
reason I wanted to run dbcheck for was to confirm that Samba still works
correctly after upgrading (it does seem to replicate normally, anyway).[1]

I've configured Samba with the following switches:
--enable-debug --enable-selftest --prefix=/usr/local/samba4
--localstatedir=/var/lib/samba4 --sysconfdir=/etc/samba4
--with-privatedir=/var/lib/samba4/private
--with-logfilebase=/var/log/samba4  --with-piddir=/var/run/samba4
--with-sockets-dir=/var/run/samba4 --with-cachedir=/var/cache/samba4

smb.conf:

# Global parameters
[global]
	workgroup = SAMDOM
	realm = samba.domain
	netbios name = dc1
	server role = active directory domain controller
	server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
winbindd, ntp_signd, kcc, dnsupdate
	idmap_ldb:use rfc2307 = yes
	template homedir = /home/%ACCOUNTNAME%
        template shell = /bin/bash

[netlogon]
	path = /var/lib/samba4/locks/sysvol/samba.domain/scripts
	read only = No

[sysvol]
	path = /var/lib/samba4/locks/sysvol
	read only = No


Worth perhaps mentioning that the setup is quite old, having been
upgraded all the way from Samba 4.0. The same compile switches have most
likely already been in use back then.

I wish that a solution could be found, for the setup feels a bit fragile
when dbcheck doesn't work. And for the 4.8 there is no downgrade option...

Pinja-Liina

--
[1] I'm currently not planning to upgrade to Samba 4.9 until after
Debian 10 "Buster" is released. Past that I may consider migrating to
the distro-supplied Samba.

On 25/04/2019 16.01, L.P.H. van Belle via samba wrote:
> Hai, 
> 
> What is the OS? 
> Samba version you did upgrade from? 
> 
> I see you compiled samba, can you share the build parameters? 
> And smb.conf with this might be handy.
> AD-DC or Member or other? 
> If AD-DC, with or without bind9_DLZ
> 
> Sorry, but more info is better.. 
> 
> 
> Greetz, 
> 
> Louis
>  
> 
>> -----Oorspronkelijk bericht-----
>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Al 
>> Slater via samba
>> Verzonden: donderdag 25 april 2019 13:07
>> Aan: samba at lists.samba.org
>> Onderwerp: [Samba] Error with dbcheck after upgrade to 4.10.2
>>
>> Hi,
>>
>> I am seeing the following error when running samba-tool dbcheck
>>
>> # samba-tool dbcheck --cross-ncs
>> ERROR(<class 'KeyError'>): uncaught exception - 'No such element'
>>   File
>> "/usr/local/samba4/lib/python3.6/site-packages/samba/netcmd/__
>> init__.py",
>> line 185, in _run
>>     return self.run(*args, **kwargs)
>>   File
>> "/usr/local/samba4/lib/python3.6/site-packages/samba/netcmd/db
>> check.py",
>> line 141, in run
>>     check_expired_tombstones=selftest_check_expired_tombstones)
>>   File
>> "/usr/local/samba4/lib/python3.6/site-packages/samba/dbchecker
>> .py", line
>> 221, in __init__
>>     self.tombstoneLifetime = int(res[0]["tombstoneLifetime"][0])
>>
>>
>> dbcheck did work initially after upgrading, but this is now 
>> occurring on
>> all 3 DCs.
>>
>> regards
>>
>> --
>> Al Slater
>>
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> 
>