Fedora directory users - Mar 2006 - Replication, migration from slaver to master, error with agreement

Dear all,

I have setup 4 servers: 2 master (server1 & server2) and 2 slaves 
(server3 & server4). Server1 and Server2 have the agreement to replica 
each other but also the agreement for replication to server3 and 
server4. Everything works perfectly now with this solution.

After a while, I think that I do not need a so big setting and would 
like to remove DS from server1 and server2 and use only server3 and 
server4 as masters with replication between them. Why? because server1 
and server2 are also my end-user servers and DS use too much resources, 
so they have started to be very slow.... and my end-user complain!!!!

So my first try was to define server3 and server4 as multi-master as 
well as server1 and server2, and after add an agreement into this 2 
servers. But I can not add any agreement into server3 and server4, I 
have always this error from my logs:

NSMMReplicationPlugin - agmtlist_add_callback: Can''t start agreement 
"cn=replication to server4,cn=replica,cn=o=xxxx\,c=xx,cn=mapping 
tree,cn=config"

I have used both the admin console and the script to generate a 
multimaster replication (perl), both are providing me this error. I have 
put the debug level to the maxi (8156) with the same error (no more 
detail !!!!).

What I did into server3:
    1) uncheck consumer -> restart
    2) check replica with multi-master -> restart (of course with an 
unique ID)
    3) create the agreement -> error

I think that an old slave could be a master as easy as this and probably 
I will need to refresh the database from scrash into server3 and server4 
(backup, init and restore). But because this 2 servers are in operation, 
I do not want to do this if there is another solution more accurate.

Thanks

Olivier
-- 
----------------------------------------------------------------
Olivier SILBER - Terra Proxyma China Ltd.
 Email: osi@terra.com.cn <mailto:osi@terra.com.cn>    Website: 
http://www.terra.com.cn/
 Address: 10th Floor, GuangHua Building, Tower B, No.8 Guang Hua Road,
                  Chaoyang district, Beijing, 100026, P.R. CHINA
 Telephone: (8610) 6581 1030  -  Fax: (8610) 6581 2814

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Olivier SILBER wrote:
> Dear all,
>
> I have setup 4 servers: 2 master (server1 & server2) and 2 slaves 
> (server3 & server4). Server1 and Server2 have the agreement to replica 
> each other but also the agreement for replication to server3 and 
> server4. Everything works perfectly now with this solution.
>
> After a while, I think that I do not need a so big setting and would 
> like to remove DS from server1 and server2 and use only server3 and 
> server4 as masters with replication between them. Why? because server1 
> and server2 are also my end-user servers and DS use too much 
> resources, so they have started to be very slow.... and my end-user 
> complain!!!!
Why is it so slow?  How many operations are the servers serving?  What 
types of operations?  BINDs?  Searches?  Add/modify/delete?  If 
searches, are all of the searches appropriately indexed?
>
> So my first try was to define server3 and server4 as multi-master as 
> well as server1 and server2, and after add an agreement into this 2 
> servers. But I can not add any agreement into server3 and server4, I 
> have always this error from my logs:
>
> NSMMReplicationPlugin - agmtlist_add_callback: Can''t start
agreement
> "cn=replication to server4,cn=replica,cn=o=xxxx\,c=xx,cn=mapping 
> tree,cn=config"
>
> I have used both the admin console and the script to generate a 
> multimaster replication (perl), both are providing me this error. I 
> have put the debug level to the maxi (8156) with the same error (no 
> more detail !!!!).
Actually, the debug level should be 8192 for replication
issues.
>
> What I did into server3:
>     1) uncheck consumer -> restart
>     2) check replica with multi-master -> restart (of course with an 
> unique ID)
>     3) create the agreement -> error
>
> I think that an old slave could be a master as easy as this and 
> probably I will need to refresh the database from scrash into server3 
> and server4 (backup, init and restore). But because this 2 servers are 
> in operation, I do not want to do this if there is another solution 
> more accurate.
>
> Thanks
>
> Olivier
> -- 
> ----------------------------------------------------------------
> Olivier SILBER - Terra Proxyma China Ltd.
>  Email: osi@terra.com.cn <mailto:osi@terra.com.cn>    Website: 
> http://www.terra.com.cn/
>  Address: 10th Floor, GuangHua Building, Tower B, No.8 Guang Hua Road,
>                   Chaoyang district, Beijing, 100026, P.R. CHINA
>  Telephone: (8610) 6581 1030  -  Fax: (8610) 6581 2814
>
> /**** DISCLAIMER ****/
> /"This e-mail and any attachments thereto may contain information 
> which is confidential and/or protected by intellectual property rights 
> and are intended for the sole use of the recipient(s) named above. Any 
> use of the information contained herein (including, but not limited 
> to, total or partial reproduction, communication or distribution in 
> any form) by persons other than the designated recipient(s) is 
> prohibited. If you have received this e-mail in error, please notify 
> the sender either by telephone or by e-mail and delete the material 
> from any computer. Although Terra Proxyma attempts to sweep e-mail and 
> attachments for viruses, it does not guarantee that either are 
> virus-free and accepts no liability for any damage sustained as a 
> result of viruses."
>
> A fanatic is one who can''t change his mind and won''t
change the
> subject. - Sir Winston Leonard Spencer Churchill/
>
> ------------------------------------------------------------------------
>
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