"Both SourceForge and Google App Engine have noticeable
downtime. SourceForge intermittently returns 504 Gateway Timeout
errors from nginx (which seems to be their reverse proxy software),
and occasionally there are longer outages. Not all SourceForge
service disruptions are reported to the official SourceForge
Downtime page. For example, about a month ago I couldn't update
files because the SSH service was out: it was acknowledged when I
mentioned it on IRC but never acknowledged on the web page. Later
on September 8, 2009, my web space and others were reporting ERROR
1040 (08004): Too many connections from MySQL. This caused the
BleachBit web site to fail. It took 15 minutes to fix from the time
I reported it (though other people reported it sooner), but it was
not mentioned on the SourceForge Site Status page.
"Google App Engine has had notable outages such as the July 2
incident, and I don't remember a time when the GAE status page
showed everything as normal for a week."