openstack team mailing list archive

[Soren Hansen <soren@xxxxxxxxxxx>]

2011/9/26 Pitucha, Stanislaw Izaak <stanislaw.pitucha@xxxxxx>:
> The pain starts when your max memory usage crosses what you have available.
> Check http://dev.mysql.com/doc/refman/5.1/en/memory-use.html - especially comments which calculate the needed memory for N connections for both innodb and isam. (mysqltuner.pl will also calculate that for you)
>
> Hundreds of connections should be ok. Thousands... you should rethink it ;)

Hm.. It doesn't take many racks full of blade servers to get into 4
digit numbers of compute nodes. Certainly fewer than I was expecting
to see in a garden variety Nova zone.

-- 
Soren Hansen        | http://linux2go.dk/
Ubuntu Developer    | http://www.ubuntu.com/
OpenStack Developer | http://www.openstack.org/