Re: Replication architecture

["Gavin Henry" <ghenry@suretecsystems.com>]

<quote who="Bruno Lezoray EMSM">
> Gavin Henry wrote:
>> <quote who="Bruno Lezoray EMSM">
>>
>>> Hi all,
>>>
>>> i have a request from a customer about 2 replication architectures and
>>> i
>>> would like to know if it's possible to implement them:
>>> 1 - Master Server -> "hub" Server -> Slave Server
>>>
>>
>> Expand on what you mean by "hub"?
>>
>>
> Hub comes from Sun Directory Server terminology which means a read-only
> server that receives/get updates to/from a master and send updates to a
> slave

Ah, a proxy. In our case that would be pushed based Syncrepl
(slapd-ldap(8) and Syncrepl in refreshAndPersist mode).

>>> 2 - Server1 <-> Server2 <-> Server 3
>>>
>>
>> This looks like Multi-Master?
>>
>>
> Yes, except that Server1 isn't directly synchronized with Server3
>>> An other question:
>>> Is the replication with slurpd or SyncREPL supported over WAN ?
>>>
>>
>> Yes, but please try to use Syncrepl over slurpd
>>
>>
>>> Are there some restrictions ?
>>>
>>
>> Firewall/routing etc. Depends what you have setup/require.
>>
> Of course, these points must be configured correctly but, i supposed
> typically latency issues due to the distance or connection closed by a
> firewall due to inactivity.
>> Gavin.
>>
>>
>>> Rgds, Bruno.
>>>
>>>
>>>
>>
>>
>
>