[389-users] db2bak on a provider/master
Mitja Mihelič
mitja.mihelic at arnes.si
Thu Feb 26 14:41:22 UTC 2015
--
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.
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. And db2bak will
not work.
Would this be about right?
Regards, Mitja
>
>>
>> Regards, Mitja
>>
>
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