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

[David Godfrey]

Hi Nick,

Thank you very much for you time and effort here.
I do have a fair load on my plate with various things at the moment, but
I am available for any testing you may want to try.

Also I will eventually get around to setting up an instance of event
streamer here on the xen server to play with as well.

Teething issues in unknown environments are to be expected when you are
trying to do anything high-ish bandwidth and realtime, so no worries there.

From what I could see, the worst issues are lower than expected quality
of the Presenters Laptop (hard to view code) and the connection issues.

I hope we can iron these issues out and make it happen again.
In the meantime I will talk to Scott and see what can be done about
finding a couple of individuals to back you up with assistance.

Regards
David G

On 20/10/15 23:56, Nick Bannon wrote:
> 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.
>