[389-users] db2bak on a provider/master

[Rich Megginson]

On 02/26/2015 07:41 AM, Mitja Mihelič wrote:
>
> --
> Mitja Mihelič
> ARNES, Tehnološki park 18, p.p. 7, SI-1001 Ljubljana, Slovenia
> tel: +386 1 479 8877, fax: +386 1 479 88 78
> On 26. 02. 2015 15:18, Rich Megginson wrote:
>> On 02/26/2015 06:30 AM, Mitja Mihelič wrote:
>>> Hi!
>>>
>>> We have a provider/consumer (master/slave) setup and we wish to 
>>> create a database backup on the master.
>>> Replica setting on the master are set to "Single Master".
>>>
>>> But when I run
>>> .../db2bak $backup_path/$current_date
>>> Backup fails an the following error is written in the errors log:
>>> ERROR: Standalone db2bak is not supported when a multimaster 
>>> replication enabled server is coexisting.
>>> Please use db2bak.pl, instead.
>>>
>>> Since multimaster replication is not used, should I consider this a 
>>> bug?
>>> Or is it referring to the "Single Master" setup as a multimaster setup?
>>
>> Yes.  "Single Master" is a misleading term as it implies that there 
>> is some sort of special protocol or setting that prevents having 
>> multiple masters.  There is no such thing.
>>
>> What version of 389-ds-base?  rpm -q 389-ds-base.
> We are using latest from CentOS repo 
> 389-ds-base-1.2.11.15-48.el6_6.x86_64.
> There are no such problems with the old centos-ds-base-8.2.8-2.el5.centos.

Looks like it was changed for 9.0.  See 
https://access.redhat.com/documentation/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/Populating_Directory_Databases-Backing_Up_and_Restoring_Data.html

>
> I've browsed the dse.ldif and found the entry defining the replication 
> (certain entries omitted):
> dn: cn=replica,cn=dc\3Dcompany\2Cdc\3Dcom,cn=mapping tree,cn=config
> objectClass: nsDS5Replica
> objectClass: top
> nsDS5ReplicaRoot: dc=company,dc=com
> nsDS5ReplicaType: 3
> nsDS5Flags: 1
> nsDS5ReplicaId: 47
> nsds5ReplicaPurgeDelay: 604800
> cn: replica
> ...
>
> I have found the following in the RHDS docs:
> "nsDS5ReplicaType: 3"  - 3 for both single and multi-master suppliers 
> (read-write replicas)
>
> From this I would surmise that it does not matter if I choose the 
> single- or multimaster, nsDS5ReplicaType is set to 3.

Correct.

> And db2bak will not work.

Correct.  You have to use db2bak.pl now.  See 
https://access.redhat.com/documentation/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/Populating_Directory_Databases-Backing_Up_and_Restoring_Data.html

> Would this be about right?
>
> Regards, Mitja
>>
>>>
>>> Regards, Mitja
>>>
>>
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>
>
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