[Samba] Not enough storage space error

[Andrew Bartlett]

On Tue, 2017-08-08 at 08:30 +0530, Anantha Raghava wrote:
> Hello Andrew & Louis,
> 
> Yesterday by around 1:30 PM we had the same issue. Samba AD kicked all of us out and RSAT did not connect to any domain controllers. Incidentally the RSAT that caused this error was running on Windows 7 Professional 64 Bit edition.
> 
> When I restarted the samba-ad-dc service, all started working well again. However, as mentioned again, I could not trace the error in the logs. I have uploaded the log (starting 11:00 AM to 2:30 PM, it is 36 MB in size!!) to google drive and invited you all.  Request you to check and suggest. The logs are from PDC emulator. We have one more additional domain controller. If you need I can enclose the logs from second DC as well. 
> 
> Also enclosed is the Windows Event (in CSV format) from the PC with Windows 7 Professional 64 Bit, running RSAT. I could only see the error with respect to Group Policy processing and windows pc had some problem with restarting.
> 
> Unfortunately the script we have written to dump the memory consumption by samba process has failed. The file is having only few entries untill 10:00, till then everything was normal. I will fix this, simulate the error, take the dump and post it here.
> 
> Also as Marc had suggested, dbcheck --cross-ncs didn't report any error on both DCs. 
> 
> Look forward for your help to fix this.

I know you ruled out using Samba 4.7, but I would still suggest running
the current 4.7 git tree. 

You are having repeated failures of your main AD, I think the balance
of risk is quite different in your case.  You can add an additional DC,
and see how that one goes. 

Thanks,

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