[Gluster-devel] Architecture advice

[Basavanagowda Kanur]

On Fri, Jan 9, 2009 at 3:22 PM, Daniel Maher
<dma+gluster at witbe.net<dma%2Bgluster at witbe.net>
> wrote:

> Krishna Srinivas wrote:
>
>  Daniel,
>> Imagine 2 servers afred with each other. On the client side you
>> configure HA translator with its subvols as the afrs on the two
>> servers. (Previously we used DNS round robin system) If 1st server
>> goes down, the HA translator will continue working with the second afr
>> and this failover happens seamlessly.
>>
> [...snip...]
>
>> If server1 goes down, the HA will continue operating using its
>> connection with AFR2.
>>
>> Was this clear?
>>
>
> Very clear, thank you. :)
>
> I am curious to know how the client decides which of the subvols to use at
> any given time, and if there is a way to specify a "preferred" subvol.  For
> example, i have two servers AFR'ing each other.  I have two clients set up
> to access the AFR cluster via HA.  For reasons of resource distribution, i
> would like Client01 to prefer to use Server01, and Client02 to prefer to use
> Server02.


currently HA does not provide facility for specifying this option.


>
> I took a peek through the (rc3) code for HA translator, but i didn't see
> any GF_OPTION_* declarations.  Likewise, the Translators_options page on the
> Wiki doesn't contain anything for HA.
>
> Is this possible ?


yes, it is possible to provide this option in future.


>
>
>
> --
> Daniel Maher <dma+gluster AT witbe DOT net>
>
>
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-- 
gowda
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