[arm-allstar] theoretical maximum number of nodes on one system?

GB7NR support at gb7nr.co.uk
Mon May 29 21:07:01 EDT 2023


What a great idea! Keep up the good work, :) 

Shane 
M0VUB

> On 30 May 2023, at 00:29, Patrick Perdue via ARM-allstar <arm-allstar at hamvoip.org> wrote:
> 
> Greetings:
> 
> I am thinking of trying an experiment, basically abusing the load balancing app.rpt code and dialplan logic of HamVoIP to host a highly customized dial-on-demand Amateur Radio Newsline node, which will, if it works the way I hope, allow for one of ten nodes to connect and get their own private connection, which will automatically spawn a heavily modified version of the playnews script that I am running on my system. Basically, each virtual node will allow only one connection, moving up to the next available node when another connection is made, but one public node number will be used to access this system. However, rather than creating a bridge, as would be the case with any normal node, you get isolated connections, one per node, which spawns a script on connect. If this works, then perhaps I will also do the same for ARRL newsline.
> 
> This idea comes from the fact that, while it is very convenient, I've never liked the way the playnews script splits episodes of AR Newsline, so I took it upon myself to edit each episode into logical breakpoints, getting as much content within 3 minutes as possible, unless the three minute limit happens to fall at a bad place, at which point I break it up by story. To do this, I upload a bunch of ULAW files, and I rewrote part of the script to play each preprocessed clip in succession, along with a randomized set of announcements for breaks to keep it from sounding too stale. It's more work for me, as I have to edit every episode manually each week, though the process usually takes less than five minutes, but the presentation sounds much better, as I also do some pre-processing to each episode before uploading to insure that levels are a little more consistent, among other things.
> 
> So, anyway, this begs the question, with each virtual node having it's own app.rpt thread, is there a known upper limit of nodes at which point things will fall over and break horribly on a Raspberry Pi 4 - 4GB running HamVoIP?
> 
> I doubt that I'll ever get to the point where I have 10 or 20 nodes simultaneously streaming their own discrete versions of AR Newsline/ARRL news/whatever, and I don't know if this idea will even work quite the way I hope it does, but it's worth finding out, as I have been approached by a few different clubs about doing this after hearing how I present AR Newsline on the Blind Hams Network every Sunday at 3:00 PM Eastern. As it would be a lot of work to distribute my custom edits and scripts, I figure I could just make a dial-on-demand node do all the heavy lifting, and anyone who wants to use it can simply schedule a connect to that node. I thought about running all these nodes along-side an existing system, but it would probably be better to use a dedicated Raspberry Pi 4 for this purpose.
> 
> Anyway, just another bunch of crazy ideas from me.
> 
> 73
> 
> N2DYI
> 
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