This is your call :).

Keep in mind that in case something will be wrong with replication, I am not telling that case like this. But when you post that theoretical problem, then this warrning can make people trying to help you endup following ghosts and not the real problem.

If you leave this as it is then consider checking replication from time to time. Now it is working but tomorow it can break...

Greg.

11 sty 2013 23:29, "James Lee" <jmlee@advance.net> napisał(a):

Thanks Greg.

 

In answer to my own email. Google has turned up this:

 

http://www.centos.org/docs/5/html/CDS/ag/8.0/Managing_Replication-Troubleshooting_Replication_Related_Problems.html

 

Error:

Warning: data for replica's was reloaded, and it no longer matches the data in the changelog. Recreating the changelog file. This could affect replication with replica's consumers, in which case the consumers should be reinitialized.

 

Reason:

This message may appear only when a supplier is restarted. It indicates that the supplier was unable to write the changelog or did not flush out its RUV at its last shutdown. The former is usually because of a disk-space problem, and the latter because a server crashed or was ungracefully shut down.

 

Impact:

The server will not be able to send the changes to a consumer if the consumer's maxcsn no longer exists in the server's changelog.

 

Remedy:

Check the disk space and the possible core file (under the server's logs directory). If this is a single-master replication, reinitialize the consumers. Otherwise, if the server later complains that it can't locate some CSN for a consumer, see if the consumer can get the CSN from other suppliers. If not, reinitialize the consumer.

 

So I will take a look and see if this helps and report back my findings. At the moment from my tests, replication is working so maybe there is no need to reinitialize.

 

 

From: 389-users-bounces@lists.fedoraproject.org [mailto:389-users-bounces@lists.fedoraproject.org] On Behalf Of Grzegorz Dwornicki
Sent: Friday, January 11, 2013 3:10 PM
To: General discussion list for the 389 Directory server project.
Subject: Re: [389-users] NSMMReplicationPlugin - replica_check_for_data_reload: Warning:

 

It apears that you need to reinitialize consumers again. In your case three masters from fourth. I think this can do some harm. Lets asume that 389 uses some version numbers to tell consumers when they need to replicate data from master server (this will be the change log).

Now lets say that one consumer have wrong number. It will not replicate as it should. If this consumer is master aswell then it can write wrong data to other consumers.

Well I'm not expert and this is how I see this warning. I would make sure that one master have good data and initialize from it other masters.

Greg.

11 sty 2013 20:36, "James Lee" <jmlee@advance.net> napisał(a):

Hi,

 

Each time I restart my master server I get the following warning message in the error log:

 

[11/Jan/2013:14:04:29 -0500] - CentOS-Directory/8.2.8 B2012.041.1227 starting up

[11/Jan/2013:14:04:29 -0500] NSMMReplicationPlugin - replica_check_for_data_reload: Warning: data for replica dc=<my_domain>,dc=net was reloaded and it no longer matches the data in the changelog (replica data > changelog). Recreating the changelog file. This could affect replication with replica's consumers in which case the consumers should be reinitialized.

[11/Jan/2013:14:04:29 -0500] - slapd started. Listening on All Interfaces port 389 for LDAP requests

 

My env:

CentOS release 5.5 (Final)

Multi master setup with consumers

centos-ds-8.2.0-2.el5.centos

centos-ds-base-8.2.8-2.el5.centos

 

I guess this is just a warning, but does it mean there is a problem? I get this on all four of my master servers when I restart dirsrv. I tested and replication is working. Would be nice to get rid of this error.

 

James.

 


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