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announcing the stress-test net (stress-testing ASL3)

 

Greetings, all:


As I have migrated most of my multi-connection-holding nodes to ASL3, it occurs to me that it has never been satisfactorily proven how many connections a single node, without any load balancing, can handle before it completely falls over when hardware isn't the bottleneck.


I have a slightly over-the-top system for testing ASL3. It is a dedicated machine with a sixth generation Zeon E3 processor and 64GB of RAM on a corporate fiber connection. This is an entry-level server/workstation-class processor, but it's more than enough to throw anything ASL could possibly do, I'm sure.


So, to sate my personal curiosity, as well as for the general education of anyone who is interested in deploying large ASL3 nodes at scale, I'm running a stress-test net this Saturday, September 14, at 3:00 PM EDT, 12:00 PM PDT, 19:00 Z. The aim is to have as many nodes as possible connect to this system, node 508429, and monitor performance and resources throughout to see what happens when high connection counts are reached on a single server.

Importantly for this particular test, this node is not part of any larger network. It is just a solitary Asterisk server not inter-connected to any other hubs. The goal is to get as many individual nodes connected as possible.

So, if you've got multiple nodes to spare, bring them all, and connect directly, I.E. don't chain multiple nodes together, and then connect one of them to 508429.


Using HamVoIP with internal load balancing on a Raspberry Pi 4 with no USB sound fobs connected, and no web stuff running in the background, it has been proven that 141 connections can be achieved before the Pi is choked, and just can't handle anymore. However, audio is very jittery when it gets to that point, at least in my testing.

This is neither HamVoIP nor 32-bit aarch. It's a completely different environment, for better or worse. Hopefully better. The custom editions to app_rpt for load balancing don't exist. Do they need to? That's what I want to find out.

I've seen very high adjacent node connection counts exceeding 300 on large nets, such as the Absolute Tech Net, but this involves multiple hubs, each holding a large number of connections, which is not what I'm aiming for here.


Yes, I actually *want* to get enough connections on this system that it struggles, or maybe even crashes, to see where the threshold is, which is normally a thing you don't want.


On top of testing the performance of an? ASL3 node, it may end up being the place where you meet interesting people you've never heard before. Who knows?


Again, that's Saturday, September 14, at 3:00 PM EDT, 12:00 PM PDT, 19:00 Z, node 508429, to stress-test an ASL3 server running on decent hardware on plenty of bandwidth.


I am not on Facebook, so feel free to post this to any Allstar-related groups you are on to get the word out.


Thanks and 73

Patrick, N2DYI
Re: Shari pihat / raspberry pi 5

 

Yes.? Because the Pi5 includes a debug serial port, a change is required.? The following from the construction and setup manual in the Files section of this group explains'
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You must use the Allstar Link ASL3 image for the Pi5.

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We recommend you follow the setup procedure shown in the following YouTube video.

?

?

There is one change required for the Pi5. In order for the Pi5 to program the SA818S using the Pi5 UART, the file /boot/firmware/cmdline.txt must be modified by adding console=serial0,115200 to the end of the current line in the file.? So the file contents become the single line:

?

console=tty1 root=PARTUUID=2f611b54-02 rootfstype=ext4 fsck.repair=yes rootwait console=serial0,115200

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After modifying the file, reboot the Pi and ttyAMA0 will be available.? Then, when setting up the SA818 using the sa818-menu application as shown in the video, it is required to set the Serial Port to:? /dev/ttyAMA0

?

Steve - N8AR
Shari pihat / raspberry pi 5

[email protected]
 

Hello all,
I'm building an allstarlink node with a raspberry pi 5 with a Shari pihat and I can't program the sa818.
The node works with the default sa818 settings, but when I try to change settings using? "sudo sa818-menu" I get a connection error.
Anyone run into this problem? Any ideas how to fix?
Just installed shari node. Issues with dtmf codes

 

I am running a yaesu ftd5 and have used the method documented on this site to attempt and set dtmf tones. Everyone of the codes except the 'A' tone work. I have adjusted the receive volume. Any suggestions. I can live with out the 'A' tone, but would like to get it working.
?
?
Re: Help with EchoLink on Shari PiHat (52pi case)

 

Yes.? Thanks for your response.? The problem turned out to be a problem with the registration of my -L callsign.? Fixed now and working well!
73 Jim.
Re: Help with EchoLink on Shari PiHat (52pi case)

 

Are you adding the extra 3 to the connect command?
Re: WiFI connection priorities for SSIDs

 

Rich, Could you please post your configuration? I'd be interested in seeing it. I want to set mine up to do home as #1 and hotspot as #2
I'd be interested in seeing the differences.
Thanks,
Dean - KC9REN
WiFI connection priorities for SSIDs

 

I currently have three different WiFi connections programmed into my Shari Node. One is base, second is for the vehicle and third is for my phone hotspot.

A fellow member gave me a suggestion and I wanted to check before doing it. My node is working fine,?but I do not want?to change configurations,?if there is a?better?solution. My intention is to reduce the time for connection and reduce the?number of attempts.

Here are the examples he sent to me.

Edit the file:?/etc/wpa_supplicant/wpa_supplicant_custom-wlan0.conf

The file looks like this:
network={
? ? ssid="dont"
? ? #psk="xxxxxxxxxxx"
? ? psk=bc9eb06d1493fdb997dac8224f08b30e4095515f13e99b44576880ac976b0bd
? priority=2
}
network={
? ? ssid="Computerjedi"
? ? #psk="xxxxxxxxxx"
? ? psk=a0618363258fdec019bc50d722abb4ac20da7588604dd91e18c7a9c6715373d
? priority=3
}
network={
? ? ssid="ICM_INT"
? ? #psk="xxxxxxxxxx"
? ? psk=753902562fb34f1df8db87fb4a9b620b8e8de9e78119a6d4c7dfc0f0d9529fe
? priority=1
}


I?added the priority= line.
It should be the highest priority number (largest number) is selected first, then it goes down the list for selecting which wifi to connect to first


Rich H W9ABE
Help with EchoLink on Shari PiHat (52pi case)

 

I received this kit, assembled without much trouble and it works fine connecting to AllStar nodes. However, I can't get EchoLink to work.
Specifics are below. Does anyone have suggestions?
73 Jim.

asterisk -rvvv
echolink dbdump
0|VE3LMK-L|198.48.247.18
663717|*PINGTEST*|52.91.249.47
9999|*ECHOTEST*|54.176.61.77
This looks like too short a list.
module show like echolink
Module Description Use Count
chan_echolink.so echolink channel driver 0
So the echolink module is loaded but is not being used.

I have forwarded ports: 4568 UDP, 5038 TCP, 5198 UDP, 5199 UDP, 5200 TCP.
(iax.conf contains bindport=4568 because 4569 is in use for my PBX.)

My echolink.conf looks like this (comments & password removed):
[el0]
confmode=no
call=VE3LMK-L ; Change this!
pwd=xxxxxxxxxx ; Change this!
name=Jim Lemke ; Change this to your real name!
qth=Orillia ON ; Change this to your actual QTH!
email=ve3lmk@... ; Change this!
maxstns=20
rtcptimeout=10
node=893614 ; Echolink node number - Change this!
recfile=/tmp/recorded.gsm
astnode=62464 ; Change this to your active Allstar node number!
context=radio-secure
server1=server1.echolink.org
server2=server3.echolink.org
server3=server2.echolink.org
server4=backup.echolink.org
freq=446.1
tone=110.9
lat=44.615697685914995
lon=-79.43942928795009
power=0
height=1
gain=3
dir=8
message=Low power local link for HT\n
Re: Key up's?

 

It works normally if I don't put broadcastify in it, so I am leaving it out.
It works fine now with no issues.?
--
Rich
KC0QA?
Re: Shari Pi4U Questions

 

Thank you all for your responses. I truly appreciate you sharing your experiences and knowledge
--
Dennis - KD9ULM
SHARI using the Pi5

 

The Pi5 is way more powerful than is needed for an Allstar node but we are hams so we like to experiment and several SHARI customers had emailed me to ask if a SHARI node could be built using the Pi5.? I also received an email from Duane, K7YY with information about his succesful build of a SHARI Pi5 node.? Since 52Pi now offers two cases for the Pi5, I decided to build one and if successful, document the build and offer a kit for sale to Kits 4 Hams customers.?
?
There are two 52Pi cases available for the PI5.? One uses copper heatsinks on four of the Pi5 IC's.? This is the case I used.? The other one uses an official Raspberry Pi active cooler.
?
?
I found that, with the SA818 in transmit 100% of time, the CPU temperature in the unit I built reached about 55 degrees C.? Since this is about 15 degrees lower than the temperature where the OS begins to throttle the CPU speed, I did not bother to test the second case and designed our kit around the case using just the copper heatsinks and a fan.? Duane used the other case with the active cooler so he had to use a GPIO connector spacer and taller standoffs to permit the active cooler to be installed on the CPU with the SHARI PiHat board above it.
?
You must use the ASL3 image for the Pi5.? Also, Duane discovered that a slight change is required in the ASL3 image in order for the Pi5 to program the SA818S using the Pi5 UART. The file /boot/firmware/cmdline must be modified by adding console=serial0,115200 to the end of the current line in the file.? This change is included in the manual.
?
The link to our new SHARI PiHAt 52Pi/Pi5 Case kit is: ?? A link to the construction and setup document is available there.? If you are interested in the kit, just email us at kits4hams@gmail,com?and ask for the SHARI PiHat 52Pi Case order form.
?
Steve - N8AR
?
Re: Key up's?

 

For me, it has to be a software issue of some sort because I can connect the shari to another pi with a fresh install, put it in the same spot, and it works flawlessly.?
Re: Key up's?

 

?
?
?
>>You know the SA818 is not a Motorola HT but more like a Baofeng...
Yes..?
?
>>What's your squelch setting?? etc.... You may have something keying it...Could it be a birdie? When it keys up... do you hear dead carrier?? or some type of modulation?
I have it set at 2
?
>>Does it key up with some type of traffic on the node channel -- or is the node channel quiet at the time it keys up and then goes to time out? Does it happen on all nodes or do you listen to just 1?
?
When i connect to a node and my node goes TX it stays keyed till time out.
?
>>Since you've tried SD card and such the SA818 is still a commonality.??
?
I have an idea as to what was causing it, but later confirmed with other test.
?
?
>>Does it do it without the internet connected?
?
Havent tried that, but i dont think it would as connecting to another node is not possible.
?
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>>I'd try another SA818 frequency... Personally I use 440.440. I stay out of garage door opener area of 433mhz..
?
We have a local repeater on that frequency (or very close) and use 436Mhz as I have no garage doors in the area..
?
?
>>Do you use a PL tone???
?
Yes i use tones in and out.?
?
?
?
?
after much testing i have found that when I install the broadcastify it causes my SA818 to go into transmit and not go out till the timer shuts it off but next transmision does it again. I am going to have to look into the settings and see what and settings i have wrong as i am still using v2-3-4. but without putting breadcastafy on it, works like normal.
Thanks
--
Rich
KC0QA?
Re: Shari Pi4U Questions

 

开云体育

The op was speaking of RAM in this case, not storage.

You can run HamVoIP on an 8GB card just fine. It will only use 4GB of that space no matter how large the card is, unless you manually expand the file system.


On 8/23/2024 8:58 AM, Scott, KB3JQQ via groups.io wrote:

Even though HamVoip says it needs 4GB, a 4GB card only has
about 3.7GB, so you need to use an 8GB minimum.

On 2024-08-23 08:45, Patrick Perdue wrote:
Honestly, don’t worry about memory unless you are running ASL3 and a bunch of other stuff on the same rPi along with your node. Even a 512MB rPi 3 model A Plus running HamVoIP has plenty of memory free if you are just using it as a single user radio node, and not doing anything extravagant.
8GB is definitely a waste in that context. If you use HamVoIP, that distribution is 32 bit, so half of that memory can’t even be addressed.

Sent from my zippo


On Aug 23, 2024, at 07:54, Dennis via groups.io <dczajkowski@...> wrote:

?
That’s great news! I’m starting to understand this more.
?
Do you have a recommended/preferred amount of memory (2gb,4gb or 8gb) my raspberry Pi should have for this to work correctly?
?
--
Dennis - KD9ULM
Re: Key up's?

 

You know the SA818 is not a Motorola HT but more like a Baofeng...
?
What's your squelch setting?? etc.... You may have something keying it...Could it be a birdie? When it keys up... do you hear dead carrier?? or some type of modulation?
?
Does it key up with some type of traffic on the node channel -- or is the node channel quiet at the time it keys up and then goes to time out? Does it happen on all nodes or do you listen to just 1?
?
Since you've tried SD card and such the SA818 is still a commonality.??
?
Does it do it without the internet connected?
?
I'd try another SA818 frequency... Personally I use 440.440. I stay out of garage door opener area of 433mhz..
?
Do you use a PL tone????
?
Larry W8LM...
?
Re: Shari Pi4U Questions

 

Scott KB3IQQ
?
I and Patrick Disagree.? As a matter of fact, I have 2 RPI2's running Allstar on 2 repeaters for over 7 years now..
?
I use RPI2's, RPI3 A & B & B+'s? and a RPI ZERO W2? When attached to a? SHARI that is all that is needed..
?
Larry W8LM
Re: Shari Pi4U Questions

 

开云体育

Even though HamVoip says it needs 4GB, a 4GB card only has
about 3.7GB, so you need to use an 8GB minimum.

On 2024-08-23 08:45, Patrick Perdue wrote:

Honestly, don’t worry about memory unless you are running ASL3 and a bunch of other stuff on the same rPi along with your node. Even a 512MB rPi 3 model A Plus running HamVoIP has plenty of memory free if you are just using it as a single user radio node, and not doing anything extravagant.
8GB is definitely a waste in that context. If you use HamVoIP, that distribution is 32 bit, so half of that memory can’t even be addressed.

Sent from my zippo


On Aug 23, 2024, at 07:54, Dennis via groups.io <dczajkowski@...> wrote:

?
That’s great news! I’m starting to understand this more.
?
Do you have a recommended/preferred amount of memory (2gb,4gb or 8gb) my raspberry Pi should have for this to work correctly?
?
--
Dennis - KD9ULM
Re: Shari Pi4U Questions

 

开云体育

Honestly, don’t worry about memory unless you are running ASL3 and a bunch of other stuff on the same rPi along with your node. Even a 512MB rPi 3 model A Plus running HamVoIP has plenty of memory free if you are just using it as a single user radio node, and not doing anything extravagant.
8GB is definitely a waste in that context. If you use HamVoIP, that distribution is 32 bit, so half of that memory can’t even be addressed.

Sent from my zippo


On Aug 23, 2024, at 07:54, Dennis via groups.io <dczajkowski@...> wrote:

?
That’s great news! I’m starting to understand this more.
?
Do you have a recommended/preferred amount of memory (2gb,4gb or 8gb) my raspberry Pi should have for this to work correctly?
?
--
Dennis - KD9ULM
Re: Shari Pi4U Questions

 

That’s great news! I’m starting to understand this more.
?
Do you have a recommended/preferred amount of memory (2gb,4gb or 8gb) my raspberry Pi should have for this to work correctly?
?
--
Dennis - KD9ULM
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