Replication integrity tool/script

[Manel Gimeno Zaragozá]

Hello,

I'm configuring an environment with multi-master replication.

ds - 1.2.10
OS - CentOS release 6.2 (Final)

I'm wondering if there is any tool to check the integrity of both servers, I mean,
some tool or script that checks if both servers are exactly the same or if there is some
mismatch, just to be sure that replication is working well and we are not missing anything
in the process.

Thanks.

Manel

[Rich Megginson]

On 03/27/2012 03:19 AM, Manel Gimeno Zaragozá wrote:
>  Hello,
>
>  I'm configuring an environment with multi-master replication.
>
>  ds - 1.2.10
>  OS - CentOS release 6.2 (Final)
>
>  I'm wondering if there is any tool to check the integrity of both 
>  servers, I mean, some tool or script that checks if both servers are 
>  exactly the same or if there is some mismatch, just to be sure that 
>  replication is working well and we are not missing anything in the 
>  process. 
http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/9.0/html/Admin...

>  Thanks.
>
>  Manel
>
>
>
>  --
>  389 users mailing list
>  389-users(a)lists.fedoraproject.org
>  https://admin.fedoraproject.org/mailman/listinfo/389-users

[Manel Gimeno Zaragozá]

Hello,

Thanks for the link, but this not solve my problem. Here is an example of what I do and
want I'm specting.

I have 2 servers in multi-master replication A<---->B

Imagine that I have a mismatch in my directory server for some reason (backup restored
just in one server, missing change log, or whatever) and server A has 25 users and B has
28 users. But I didn't notice. 
I'm keep working adding users and groups to the LDAP and replication is working well.
When I add users to server A they are replicated correctly in server B and vice versa. If
i check repl-monitor.pl, it shows me that everyting is OK and the changes made after
"the problem" are correctly sincronized, but I've still a mismatch.

Is there any way to check that?

Thanks & Regards.

Manel

Date: Tue, 27 Mar 2012 07:18:21 -0600
From: rmeggins(a)redhat.com
To: 389-users(a)lists.fedoraproject.org
CC: magiza83(a)hotmail.com
Subject: Re: [389-users] Replication integrity tool/script


  


    
  
  
    On 03/27/2012 03:19 AM, Manel Gimeno Zaragozá wrote:
    
      
      
        Hello,

        

        I'm configuring an environment with multi-master replication.

        

        ds - 1.2.10

        OS - CentOS release 6.2 (Final)

        

        I'm wondering if there is any tool to check the integrity of
        both servers, I mean, some tool or script that checks if both
        servers are exactly the same or if there is some mismatch, just
        to be sure that replication is working well and we are not
        missing anything in the process.

      
    
    

http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/9.0/html/Admin...

    

    
      

        Thanks.

        

        Manel

        

      
      

      
      

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389 users mailing list
389-users(a)lists.fedoraproject.org
https://admin.fedoraproject.org/mailman/listinfo/389-users

[Michael Gettes]

Given your scenario - if you did a restore then you would get an error message of
something like

NSMMReplicationPlugin - agmt="cn=master-t01-to-master-t02"
(ldap-master-t02:389): Replica has a different generation ID than the local data.

Yes, I just did this.  Then you would want to conduct an online initialization to bring
the replica back into sync.  Given this, all you need to do is monitor that replication is
working.  Under normal operations you won't have a problem.   If you start doing
exceptional things like mucking directly with the DB file, then this is how you might get
into the trouble you describe and the solution is to re-init the replica.

i hope this helps.

/mrg

On Mar 28, 2012, at 7:47, Manel Gimeno Zaragozá wrote:

>  Hello,
>  
>  Thanks for the link, but this not solve my problem. Here is an example of what I do and
> want I'm specting.
>  
>  I have 2 servers in multi-master replication A<---->B
>  
>  Imagine that I have a mismatch in my directory server for some reason (backup restored
> just in one server, missing change log, or whatever) and server A has 25 users and B has
> 28 users. But I didn't notice. 
>  I'm keep working adding users and groups to the LDAP and replication is working well.
> When I add users to server A they are replicated correctly in server B and vice versa. If
> i check repl-monitor.pl, it shows me that everyting is OK and the changes made after
> "the problem" are correctly sincronized, but I've still a mismatch.
>  
>  Is there any way to check that?
>  
>  Thanks & Regards.
>  
>  Manel
>  
>  Date: Tue, 27 Mar 2012 07:18:21 -0600
>  From: rmeggins(a)redhat.com
>  To: 389-users(a)lists.fedoraproject.org
>  CC: magiza83(a)hotmail.com
>  Subject: Re: [389-users] Replication integrity tool/script
>  
>  On 03/27/2012 03:19 AM, Manel Gimeno Zaragozá wrote:
>  Hello,
>  
>  I'm configuring an environment with multi-master replication.
>  
>  ds - 1.2.10
>  OS - CentOS release 6.2 (Final)
>  
>  I'm wondering if there is any tool to check the integrity of both servers, I mean,
> some tool or script that checks if both servers are exactly the same or if there is some
> mismatch, just to be sure that replication is working well and we are not missing anything
> in the process.
>  
>
> http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/9.0/html/Admin...
>  
>  
>  Thanks.
>  
>  Manel
>  
>  
>  
>  --
>  389 users mailing list
>  389-users(a)lists.fedoraproject.org
>  https://admin.fedoraproject.org/mailman/listinfo/389-users
>  
>  --
>  389 users mailing list
>  389-users(a)lists.fedoraproject.org
>  https://admin.fedoraproject.org/mailman/listinfo/389-users

[Rich Megginson]

On 03/28/2012 05:47 AM, Manel Gimeno Zaragozá wrote:
>  Hello,
>
>  Thanks for the link, but this not solve my problem. Here is an example 
>  of what I do and want I'm specting.
>
>  I have 2 servers in multi-master replication A<---->B
>
>  Imagine that I have a mismatch in my directory server for some reason 
>  (backup restored just in one server, missing change log, or whatever) 
>  and server A has 25 users and B has 28 users. But I didn't notice.
>  I'm keep working adding users and groups to the LDAP and replication 
>  is working well. When I add users to server A they are replicated 
>  correctly in server B and vice versa. If i check repl-monitor.pl, it 
>  shows me that everyting is OK 
If you had to restore from a backup or import an LDIF from a backup 
LDIF, then repl-monitor.pl should show you that you are out of sync.

>  and the changes made after "the problem" are correctly
> sincronized, 
>  but I've still a mismatch.
>
>  Is there any way to check that?
>
>  Thanks & Regards.
>
>  Manel
>
>  ------------------------------------------------------------------------
>  Date: Tue, 27 Mar 2012 07:18:21 -0600
>  From: rmeggins(a)redhat.com
>  To: 389-users(a)lists.fedoraproject.org
>  CC: magiza83(a)hotmail.com
>  Subject: Re: [389-users] Replication integrity tool/script
>
>  On 03/27/2012 03:19 AM, Manel Gimeno Zaragozá wrote:
>
>      Hello,
>
>      I'm configuring an environment with multi-master replication.
>
>      ds - 1.2.10
>      OS - CentOS release 6.2 (Final)
>
>      I'm wondering if there is any tool to check the integrity of both
>      servers, I mean, some tool or script that checks if both servers
>      are exactly the same or if there is some mismatch, just to be sure
>      that replication is working well and we are not missing anything
>      in the process.
>
>
>
> http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/9.0/html/Admin...
>
>
>      Thanks.
>
>      Manel
>
>
>
>      --
>      389 users mailing list
>      389-users(a)lists.fedoraproject.org  <mailto:[e-mail]>
>      https://admin.fedoraproject.org/mailman/listinfo/389-users
>
>