[PLUG-AV] ADUG(WA) AV Meeting Streaming 20151020 report

[Nick Bannon]

On Sat, Oct 17, 2015 at 4:24 AM, Nick Bannon <nick at ucc.gu.uwa.edu.au> wrote:
> That includes for other organisations such as ADUG(WA) - there's a
> regular third-Tuesday meeting coming for ADUG(WA) this coming week,
> 20151020-1800, hosted at the Perth Artifactory.
[...]

We gave it a shot - it worked in the end, but there were some hiccups.
It's a good option to have, we may try it for some events next year.
There's still a fair bit of hassle in setting up for a new crowd of
people; having experienced people to set up and tear down/pack up helps.

Unfortunately, I didn't get set up in time to iron out the issues, some
of which we've seen before.

First - it wasn't a great night for Vividwireless bandwidth. The single
500Kbps OGG stream mostly worked, but the youtube stream couldn't get
started properly and there's not very good diagnostics (iptraf? ntop?)
that can quickly raise a red flag about that. A good test might be if
the latency to the outside world (such as icecast.plug.org.au) spikes.

Second, there's a recurring issue that the icecast streams can take a
long time to start flowing - some kind of timeout? At one point we tried
a couple of new connections - a simple test is:
	wget -O- http://icecast.plug.org.au:8000/ |pv > /dev/null
There was a big pause, the second connection hung for approximately 75
seconds before data started flowing in both connections at once.

Third, plugav1-2 had a similar problem to a recent meeting - the hardware
was working and a manual dvsource-firewire worked, but the eventstreamr
invocation and startup of the dvsource/dvgrab was just not happening. I
tried moving/renaming config.json and restarting; and rebooting; but
it did not fix itself, a new config.json was created but the problem
remained.

Nick.

-- 
   Nick Bannon   | "I made this letter longer than usual because
nick-sig at rcpt.to | I lack the time to make it shorter." - Pascal