08-08-2014 07:42 AM
In Windows Server 2008 R2 system log there are following kind of periodical errors:
For MSSQLSvc/<server_fqdn>:dlo
Event 3:
Event 11:
For MSSQLSvc/<server_fqdn>:DEDUPE:
History:
I remember these have started after I installed DLO 7.5 on server where I had BE2010R3 but I am not sure if messages are related to this action at all. Prior to doing that I removed the DLO version which was delivered with BE2010. Installation of DLO7.5 was succesfull. Now I have upgraded from BE2010R3 to BE2014, and messages are still there.
I was able to locate words "DEDUPE" and "DLO" using program "ldp.exe" and search rule "(objectClass=*)" for whole domain (http://blog.sysoptools.com/2010/03/find-and-list-duplicate-upn.html).
First pair is under:
Second one is under:
In "Active Directory Users and Computers" I can find attribute "servicePrincipalName" in user "Administrator" and server "<server>" properties under tab "Attribute editor" (set "Filter" so that everything is displayed).
Are these two places for names DEDUPE and DLO somehow conflicting and causing the error messages.. or what is this about... what is the reason for messages 3 and 11?
Something should be removed , but what is it and how? .... What should I do to get rid of these errors?
Help is highly appreciated.
08-08-2014 09:28 AM
08-08-2014 10:21 AM
Based on document http://technet.microsoft.com/en-us/library/cc733945(v=ws.10).aspx removal can be done like this:
I think that removal might be possible also using "Active Directory Users and Computers" in "Properties" => "Attribute editor" page of user "adminstrator" and computer "<computer_name>".
List of DLO and DEDUPE duplicates:
C:\Users\Administrator>setspn -X
Checking domain DC=<domain_name>,DC=local
Processing entry 0
MSSQLSvc/<server_name>.<domain_name>.local:DLO is registered on these accounts:
CN=Administrator,CN=Users,DC=<domain_name>,DC=local
CN=<server_name>,OU=Domain Controllers,DC=<domain_name>,DC=localMSSQLSvc/<server_name>.<domain_name>.local:58585 is registered on these accounts:
CN=Administrator,CN=Users,DC=<domain_name>,DC=local
CN=<server_name>,OU=Domain Controllers,DC=<domain_name>,DC=localMSSQLSvc/<server_name>.<domain_name>.local:DEDUPE is registered on these accounts:
CN=Administrator,CN=Users,DC=<domain_name>,DC=local
CN=<server_name>,OU=Domain Controllers,DC=<domain_name>,DC=localMSSQLSvc/<server_name>.<domain_name>.local:59387 is registered on these accounts:
CN=Administrator,CN=Users,DC=<domain_name>,DC=local
CN=<server_name>,OU=Domain Controllers,DC=<domain_name>,DC=localMSSQLSvc/<server_name>.<domain_name>.local:52535 is registered on these accounts:
CN=Administrator,CN=Users,DC=<domain_name>,DC=local
CN=<server_name>,OU=Domain Controllers,DC=<domain_name>,DC=localfound 5 groups of duplicate SPNs.
C:\Users\Administrator>
Now the question still remains: because the other duplicate is under Administrator and the other one under server <server_name>, which one should I remove?
08-08-2014 07:08 PM
This is the hairy part. I can't remember which one I removed. You got to check for entries similiar to these pairs and decide which one to delete.
08-08-2014 08:43 PM
BTW, this problem can occur with any entry and is not restricted to BE and DLO. Mine was entires from some Microsoft software.
08-10-2014 07:51 AM
FYI I am not aware that Backup Exec creates any SQL instances/databases called DEDUPE. The Backup Exec deduplication database uses Postgres and not SQL
EDIT: however the newer versions of DLO also have a form of Deduplication and as such both databases may be from DLO and be related.
You should probably log a forum post in the actual DLO forum instead of the Backup Exec one (and/or log a formal support case)
DLO forum = https://www-secure.symantec.com/connect/backup-and-recovery/forums/desktop-laptop-option
08-11-2014 01:28 AM
Command "setspn -X" should tell the location of conflicting duplicate entries. There are no more than those listed above.
08-19-2014 01:19 AM
I had a support case open for this with no clear results.
Issues encountered when DLO7.5SP1 is installed on same server with BE2014 (originally version has been BE2010R3):