[Samba] sudden replication failures

mourik jan heupink - merit heupink at merit.unu.edu
Tue Jul 1 13:13:09 MDT 2014


Hi all,

Samba (sernet) 4.1.7, and we're getting high cpu usage on dc1, and on 
dc2 (my 'secondary' dc):

root at dc2:~# samba-tool drs showrepl
Default-First-Site-Name\DC2
DSA Options: 0x00000001
DSA object GUID: 5e93a102-2963-496a-af16-0c51eebb2e31
DSA invocationId: 82b24c02-16cb-4ed1-b68b-a047c26886a9

==== INBOUND NEIGHBORS ====

DC=DomainDnsZones,DC=samba,DC=domain,DC=com
	Default-First-Site-Name\DC1 via RPC
		DSA object GUID: 81a27497-bdfb-4977-9874-675bbfba490f
		Last attempt @ Tue Jul  1 20:58:53 2014 CEST failed, result 8442 
(WERR_DS_DRA_INTERNAL_ERROR)
		825 consecutive failure(s).
		Last success @ Tue Jul  1 16:34:57 2014 CEST

CN=Configuration,DC=samba,DC=domain,DC=com
	Default-First-Site-Name\DC1 via RPC
		DSA object GUID: 81a27497-bdfb-4977-9874-675bbfba490f
		Last attempt @ Tue Jul  1 20:58:13 2014 CEST was successful
		0 consecutive failure(s).
		Last success @ Tue Jul  1 20:58:13 2014 CEST

Google doesn't tell me much. Does anyone know WERR_DS_DRA_INTERNAL_ERROR?

I rebooted the dc1, but that made no difference. Time is synched on both 
dc's.

Samba-tool dbcheck gives the same output on both dc's, and nothing out 
of the ordinary. (it gives normalization errors, but these have been 
discussed on list, and are considered harmless)

Any cue's how to solve this? Stupid detail: I'm currently on holiday, so 
much for a worry-free holiday....

Hope for any insight.

MJ


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