Re: [Gnumed-devel] GNUmed under heavy load

[Sebastian Hilbert]

Am Montag 12 Juli 2010, 00:00:43 schrieb Karsten Hilbert:
> On Sat, Jul 10, 2010 at 01:07:43PM +0200, Hilbert, Sebastian wrote:
> > > HI all,
> > > 
> > > The server is back up again. Spammers are trying to get a hold of the
> > > server. Since I took down the registration module they have tried to
> > > guess the password for the ssh log in. Unsuccessful so far.
> > 
> > I have installed fail2ban and that has reduced the load. We are now
> > suffering from a new problem. Trusty old server only has 1GB of RAM.
> > When it starts swapping if slow down. At least this time I was able to
> > ssh in.
> > 
> > This is just to let you know.
> > I have yet to find out why this happens (more users in the public PG
> > database ?, new TWiki version ?)
> 
> Oh, it's always been fairly slow to directly work with.

We have never checked what make working with it slow. Network latency (guess 
in the area of 20ms) or data fetching ? It is on a 100MBit line upstream so 
slowness in that area depends on the downstream rate of the connecting client.

Sebastian