hummm i think it´s not innovative, there´s some open projects that
solve this, you should check before developing the whell again

2011/4/5 Mohit Anchlia <[email protected]>:
> Thanks everyone for replying. There is no easy solution for the
> requirements being imposed upon us. Even though we have Oc3 still this
> may not work sine memcached seems to be hash accross the servers
> architecture and not master/master type architecture.
>
> I will have to come up with some other innovative idea to solve this
> particular complex requirement.
>
> On Mon, Apr 4, 2011 at 11:23 PM, Dustin <[email protected]> wrote:
>>
>> On Apr 4, 9:28 pm, Roberto Spadim <[email protected]> wrote:
>>
>>> i'm using repcache without problem, if one server die the other have
>>> the same information, when other server is up it's automatic sync with
>>> the 'master'
>>> it works well with php memcache session handler
>>> but a good session handler could be a nosql database (membase) since
>>> it's not a cache, it's a database...
>>
>>  Membase doesn't currently have cross datacenter master/master
>> replication that can compensate for inconsistencies introduced by
>> network outages or latency when a user is jumping back and forth
>> between two data centers.  Anything that *can* is going to be much
>> slower.
>>
>>  I think Brian's got it there.  Your best bet is to keep the users
>> contained where networks are fast.  RTT between SF and VA is something
>> like 20ms.  Replication doesn't help the situation.  You might as well
>> pin the data for the user in one data center and just fetch it across
>> the country every time (which is effectively what AP systems will do).
>



-- 
Roberto Spadim
Spadim Technology / SPAEmpresarial

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