[ejabberd] Any scalability limitations with mnesia as the backend vs postgres?

Evgeniy Khramtsov xramtsov at gmail.com
Thu May 5 16:00:28 MSD 2011


05.05.2011 21:15, zhong ming wu wrote:
>>> I assume this is only in reference to the tables that could potentially be
>>> orders of magnitude larger than the amount of users/activities on the live
>>> system, correct? Such tables as passwd, roster, vcard etc. Since some
>>> tables
>>> (session, muc_online_room etc) *have* to be in Mnesia, they're out of the
>>> picture I guess, right?
>>>        
>
> So if I store passwd, roster and vcard in a sql database memory
> consumption will be lower
> in the cluster?
>    

It will be lower whether you use clustering or not. But if you prefer 
mnesia, then you can change types of passwd, rosters and vcard to 
disc_only_copies.

-- 
Regards,
Evgeniy Khramtsov, ProcessOne.
xmpp:xram at jabber.ru.



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