directory-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Kiran Ayyagari <kayyag...@apache.org>
Subject Re: Data Store Locations and DR ?
Date Tue, 28 Oct 2014 21:41:01 GMT
On Wed, Oct 29, 2014 at 5:28 AM, Paul Simpkins <simpkins112@googlemail.com>
wrote:

> Kiran
> 3 and 4 wont be running though. They will only be started when data
> center  1 goes down.
> Also where do I configure the different locations ?
>
ok, no, one server can only write to one location

>  On 28 Oct 2014 21:15, "Kiran Ayyagari" <kayyagari@apache.org> wrote:
>
>>
>>
>> On Tue, Oct 28, 2014 at 10:08 PM, Paul Simpkins <
>> simpkins112@googlemail.com> wrote:
>>
>>> Hi all,
>>> I've managed to bring up my ApacheDS (2.0) servers in Multi Master
>>> config - and they are happily replicating between each other (LDAP1 and
>>> LDAP2). This has given me my HA solution.
>>> I now want to introduce the DR aspect of the solution, with a second
>>> data centre that is running dark.
>>>
>>> Initially I thought to just use Multi Master across the 4 machines (LDAP
>>> 1, 2 3 and 4) but as the second data centre is only meant to be used in DR
>>> circumstances, then this solution doesn't really fit.
>>>
>>> So my idea is the following.
>>> Keep Multi Master configured across LDAP 1 and 2.
>>> Each LDAP server to write it's store to a shared disk. A different
>>> location for each server.(/instances/default/*
>>> Install the ApacheDS server on LDAP3 and LDAP4. (machines are mirrors of
>>> LDAP 1 and 2)
>>> When DR occurs it will start machines LDAP 3 and 4
>>> Start ApacheDS on LDAP3 and LDAP4 - with the idea to 'use' the data that
>>> is on the shared disk.
>>>
>>> Is this viable ? Is it possible to move the 'store' of an already
>>> running server to a different place ?
>>>
>>> it is possible, however I suggest to configure 3 & 4 as slaves of 1 &
2
>> and write to a different location
>> (on a different disk, if possible)
>>
>>> Regards
>>> Paul
>>>
>>>
>>>
>>
>>
>> --
>> Kiran Ayyagari
>> http://keydap.com
>>
>


-- 
Kiran Ayyagari
http://keydap.com

Mime
View raw message