Re: Troubleshooting Replication

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance



Hi John,

Probably a silly question but is the time synchronised between the 2 dc's?
Where are the dns servers in your domain and where are the dns clients on
each dc pointing to?

And finally, these might help

How Active Directory Replication Topology Works
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/TechRef/c238f32b-4400-4a0c-b4fb-7b0febecfc73.mspx

FRS Diagnostics Tool
http://www.microsoft.com/downloads/details.aspx?FamilyId=43CB658E-8553-4DE7-811A-562563EB5EBF&displaylang=en

Replication problems due to RPC timeout settings
http://support.microsoft.com/default.aspx?scid=kb;en-us;830746

Configuring diagnostics logging in Active Directory
http://support.microsoft.com/default.aspx?scid=kb;en-us;314980

Thanks,
Mark
-----------------------------
"John Hornbuckle" wrote:

> The remote site (Site A) only has one server (Server A), so there's nothing
> else to compare it to. The site (Site B) with the server it's replicating to
> here on my district network also only have one server (Server B). But several
> other servers in other sites in my district are all replicating with Server B
> with no problems.
>
> When I try to force a replication using ADSS, I get the message saying that
> I'm trying to replicate between servers in different sites. I then check the
> event logs after a couple of minutes, and find multiple errors. Things like:
>
> * All domain controllers in the following site that can replicate the
> directory partition over this transport are currently unavailable
>
> * There is insufficient site connectivity information in Active Directory
> Sites and Services for the KCC to create a spanning tree replication
> topology. Or, one or more domain controllers with this directory partition
> are unable to replicate the directory partition information. This is probably
> due to inaccessible domain controllers.
>
> * The Knowledge Consistency Checker (KCC) was unable to form a complete
> spanning tree network topology. As a result, the following list of sites
> cannot be reached from the local site.
>
> All info telling me that there's a problem, but not really helping me figure
> out the cause.
>
> I've run repadmin /showreps, and below are the results. Does this tell
> anyone anything? I'm not sure what to make of it, other than to know that
> there's a problem--but I already knew that!
>
> C:\>repadmin /showreps
> Site A\Server A
> DC Options: IS_GC
> Site Options: (none)
> DC object GUID: 6636ec9a-0673-404a-8519-78a6442e0f49
> DC invocationID: d7453f33-603c-4c6c-9dc5-33cbaa851343
>
> ==== INBOUND NEIGHBORS ======================================
>
> DC=taylor,DC=k12,DC=fl,DC=us
> Site B\Server B via RPC
> DC object GUID: 5035b980-7cd4-4e6d-8ba0-5cee29465a2c
> Last attempt @ 2005-11-11 08:51:49 failed, result 1818 (0x71a):
> The remote procedure call was cancelled.
> 5 consecutive failure(s).
> Last success @ 2005-11-11 00:45:23.
>
> CN=Configuration,DC=taylor,DC=k12,DC=fl,DC=us
> Site B\Server B via RPC
> DC object GUID: 5035b980-7cd4-4e6d-8ba0-5cee29465a2c
> Last attempt @ 2005-11-11 09:49:09 was successful.
>
> CN=Schema,CN=Configuration,DC=taylor,DC=k12,DC=fl,DC=us
> Site B\Server B via RPC
> DC object GUID: 5035b980-7cd4-4e6d-8ba0-5cee29465a2c
> Last attempt @ 2005-11-11 09:49:08 was successful.
>
> DC=DomainDnsZones,DC=taylor,DC=k12,DC=fl,DC=us
> Site B\Server B via RPC
> DC object GUID: 5035b980-7cd4-4e6d-8ba0-5cee29465a2c
> Last attempt @ 2005-11-11 09:42:55 failed, result 1818 (0x71a):
> The remote procedure call was cancelled.
> 3 consecutive failure(s).
> Last success @ 2005-11-11 01:45:24.
>
> DC=ForestDnsZones,DC=taylor,DC=k12,DC=fl,DC=us
> Site B\Server B via RPC
> DC object GUID: 5035b980-7cd4-4e6d-8ba0-5cee29465a2c
> Last attempt @ 2005-11-11 08:51:54 was successful.
>
> Source: Site B\Server B
> ******* 5 CONSECUTIVE FAILURES since 2005-11-11 01:45:24
> Last error: 1818 (0x71a):
> The remote procedure call was cancelled.
>
> C:\>
>
>
>
> "Mark" wrote:
>
> > Hi John,
> >
> > Another tool to try is "replmon".
> > What happens when you force a replication from Sites and Services ? (Browse
> > to NTDS Settings and force replication over the relevant connector). Are
> > there any other DCs in the same site as your problem server and are they
> > having the same issues? And anything interesting in your eventlogs?
> >
> > Thanks
> > Mark
> >
> > "Nick" wrote:
> >
> > > Hi John,
> > >
> > > It sounds like your having a nightmare with this one!
> > >
> > > A good tool to use for troubleshooting replication issues is DNSLine which
> > > is a free download from the microsoft website.
> > >
> > > A document to go with it is: http://support.microsoft.com/?kbid=321046
> > >
> > >
> > > I strongly recommend taking a look at the tool and it will hopefully point
> > > you in the correct direction as to what may be causing this.
> > >
> > > Good Luck!
> > > Cheers,
> > >
> > > Nick
> > >
> > > "John Hornbuckle" <JohnHornbuckle@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
> > > message news:44AE149C-485A-4C6A-848E-528CE3475098@xxxxxxxxxxxxxxxx
> > > > This is a single domain structure, Windows Server 2003 SP1.
> > > >
> > > > Server A is at Site A, which is my remote site with a T1 connection to
> > > > the State of Florida's Internet backbone.
> > > >
> > > > Server B is at Site B, which is my main site with four T1's connected to
> > > > the State of Florida's Internet backbone.
> > > >
> > > > Sites A and B are connected via VPN. Traffic between the two sites
> > > > doesn't really go out to the Internet; it stays on the State's backbone,
> > > > meaning that connectivity is pretty decent. Not great, but decent. Sites
> > > > A and B have been connected via VPN for ages, but the configuration
> > > > changed a few weeks ago when we bumped up the speed of Site A's
> > > > connection and started routing traffic from the site to a new location.
> > > > The
> > > > firewall trusts all traffic between sites A and B, so that shouldn't be a
> > > > factor.
> > > >
> > > > Yet, Server A is having a heck of a time replicating. I'm pretty new to
> > > > Active Directory, so I'm not sure what to do troubleshoot.
> > > >
> > > > I've run dcdiag on Server A, and the server passes every test (but with
> > > > latency warnings on the replication test).
> > > >
> > > > I've run netdiag, and it seems to hang at the point where it's testing
> > > > LDAP connectivity. Which sounds like a possible LDAP problem, but when I
> > > > run "portqry -n [server] -p udp -e 389" from Server A against Server B
> > > > and every other DC in my domain, I get successful results 99% of the
> > > > time. The other 1%, I get "LDAP query to port 389 failed - Server did
> > > > not respond to LDAP query." If I run the query again against that same
> > > > server, though, I'll have success. I guess latency is causing this?
> > > >
> > > > I'm looking for some tips on how to proceed from here in terms of
> > > > troubleshooting. Hopefully some of you old pros out there can give me
> > > > some pointers.
> > >
> > >
> > >
.



Relevant Pages

  • Re: SBS 2003 and Replication Errors with Remote DC
    ... I just promoted the remote DC last week, so I still have time to solve the replication issues. ... Domain Controller Diagnosis ... Connecting to directory service on server alpha. ... Performing upstream analysis. ...
    (microsoft.public.windows.server.sbs)
  • Re: SBS 2003 and Replication Errors with Remote DC
    ... alpha server as soon as you can to get things going. ... A simple DNS replication test is to create a host record in the SBS server ... Domain Controller Diagnosis ...
    (microsoft.public.windows.server.sbs)
  • Re: SBS 2003 and Replication Errors with Remote DC
    ... I did make the changes that you suggested on the DNS of my alpha server and rebooted. ... I did run the simple DNS test that you suggested by adding a host record to my SBS server. ... A simple DNS replication test is to create a host record in the SBS server and wait till it shows up in the remote server. ...
    (microsoft.public.windows.server.sbs)
  • Re: Intersite Replication problem
    ... As for RPC The default value for the RPC Replication Timeout registry ... from Windows 2000 to Windows Server 2003, the value for the RPC Replication ... Remote Procedure Call dynamic port allocation is used by remote ...
    (microsoft.public.windows.server.active_directory)
  • Re: Unable to decommission a Windows 2008 DC via dcpromo
    ... Can you open and compare sysvol and netlogon share on both DCs? ... Verifying that the local machine server2, ... The File Replication Service Event log test ... Latency information for 8 entries in the vector were ...
    (microsoft.public.windows.server.active_directory)