How can you tell that the database is thrashing to your disks?<br><br>How many users did cause the problem and how big was the roster?<br><br>Do you know if it is easier to cluster with mnesia compared to mysql?<br><br>Thanks<br>
<br><div class="gmail_quote">On Fri, May 23, 2008 at 9:46 AM, anders conbere <<a href="mailto:aconbere@gmail.com">aconbere@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On Fri, May 23, 2008 at 9:36 AM, mark peleus <<a href="mailto:mark.peleus@gmail.com">mark.peleus@gmail.com</a>> wrote:<br>
> Hi,<br>
><br>
> I've read how to work with ejabberd and mnesia or MySQL but it is not clear<br>
> to me which one is better and for what purpose.<br>
><br>
> Can you please tell me which one:<br>
><br>
> - have better performance<br>
> - easier to cluster<br>
> - works better with large amount of registered users<br>
<br>
</div>In our tests with large numbers of users, with large rosters, mnesia<br>
started thrashing our disks. This was mitigated by moving to MySQL.<br>
That being said... we're not Mnesia engineers and could be doing<br>
something wrong.<br>
<br>
~ Anders<br>
<div class="Ih2E3d"><br>
> - easier to manage. I use phpmyadmin for mysql. Is there an administration<br>
> tool for mnesia?<br>
><br>
> Thanks.<br>
><br>
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