[arm-allstar] Asterisk crashing when Echolink connected

Sun May 29 19:37:11 EST 2016

Matt,

 It would be interesting if it turned out to be the server settings but I have played with many server settings over the years and never had a crash. The echolink code has been stable for a long time. If you can narrow this down so we could test it here it would be helpful. 

Have you looked at echolink dbdump and dbget in the client. Does the database populate before you have the crash?  

dbdump in the client is kind of useless in that it just scrolls all the nodes out. You can do

asterisk -rx "echolink dbdump" | more     or send it to a file.

My current servers:

server1=server1.echolink.org
;server2=server5.echolink.org
server3=server3.echolink.org
server2=naeast.echolink.org

The code requires three servers. Half the time there are not three that actually work and if you look at address resolution on the servers you will see that many are really the same IP address. At the moment server 2,3,NAEAST and NAWEST all have the same IP. 

Name:   server1.echolink.org
Address: 174.129.36.165

server2.echolink.org    canonical name = server3.echolink.org.
Name:   server3.echolink.org
Address: 174.129.209.125

Name:   server3.echolink.org
Address: 174.129.209.125

Name:   server4.echolink.org
Address: 50.18.55.39

Name:   server5.echolink.org
Address: 68.178.144.151

naeast.echolink.org     canonical name = server3.echolink.org.
Name:   server3.echolink.org
Address: 174.129.209.125

nawest.echolink.org     canonical name = server3.echolink.org.
Name:   server3.echolink.org
Address: 174.129.209.125

None of the echolink servers including ones not listed here seem to return pings which is strange. I thought they use to.

73 Doug
WA3DSP
http://www.crompton.com/hamradio

Date: Sun, 29 May 2016 19:57:02 +0100
To: arm-allstar at hamvoip.org
Subject: Re: [arm-allstar] Asterisk crashing when Echolink connected
From: arm-allstar at hamvoip.org
CC: matt at m0lmk.co.uk

Hi David,

I'll keep it on the list if you don't mind as it may help others if this
 problem comes up again. I have a working theory but I need to do a bit 
more testing to confirm.

Here are these servers listed in my echolink.conf...

server1=servers.echolink.org

server2=naeast.echolink.org

server3=backup.echolink.org

I noticed that the crash happened just after this line in the asterisk 
console..

-- Received OK from Echolink server servers.echolink.org

-- Received OK from Echolink server backup.echolink.org

allstar*CLI> 

Disconnected from Asterisk server

Executing last minute cleanups

So, I've changed the servers to the following...

server1=europe.echolink.org

server2=servers.echolink.org

server3=backup.echolink.org

And now it only connects to a single server in the asterisk console...

-- Call changed from OUTBOUND to *ECHOTEST*

-- Name changed from OUTBOUND to (Conference  [9]) CONF

-- Received OK from Echolink server europe.echolink.org

-- Directory pgm done downloading(partial,compressed), 377 records

And have been up for 20 minutes without a crash. Maybe the problem was a
 bad server in the echolink pool?

In answer to your questions.

Is IPv6 networking in this mixture anywhere? - We have an ipv6 tunnel 
set up on our main router but all internal networking is ipv4

What are your Echolink and AllStar node numbers? 43412 (AllStar), 214700
 (Echolink)

Does the crash occur when connecting to all Echolink nodes (like the 
Echolink *ECHOTEST* conference server, node #9999)? Happens on all nodes
 I have tried

Does AllStar connectivity work properly? Yes. I have not seen any 
asterisk crashes when not connected or when connected to an allstar node

My current echolink.conf

[el0]

confmode=no

call=MB7IBK-L        ; Change this!

pwd=pypassword          ; Change this!

name=MB7IBK           ; Change this to your real name!

qth=Broadstairs, UK    ; Change this to your actual QTH!

email=matt at m0lmk.co.uk ; Change this!

maxstns=20

rtcptimeout=10

node=214700               ; Echolink node number - Change this!

recfile=/tmp/recorded.gsm

astnode=43412            ; Change this to your active Allstar node 
number!

context=radio-secure

server1=europe.echolink.org

server2=servers.echolink.org

server3=backup.echolink.org

;server1=servers.echolink.org

;server2=naeast.echolink.org

;server3=backup.echolink.org

; Change following setting to your parameters

freq=145.2125

tone=103.5

lat=51.36242  

lon=1.44442

power=1

height=1

gain=0

dir=0

;deny=

;permit=

Hope that helps.

Matt

M0LMK

   	David McGough via arm-allstar        29 
May 2016 at 19:46    
  Hi Matt,

As others 
have mentioned, I've not seen this issue previously. I've got a
few 
questions to try and help debug this, feel free to send my a private
e-mail
 with answers, if you would prefer.

Is IPv6 networking in this 
mixture anywhere?

What are your Echolink and AllStar node 
numbers?

Does the crash occur when connecting to all Echolink 
nodes (like the 
Echolink *ECHOTEST* conference server, node #9999)?

If
 only specific node numbers cause the crash, what nodes are they?

Does
 AllStar connectivity work properly?

Thanks,

73, David
 KB4FXC

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   	Matt via arm-allstar        29 
May 2016 at 19:31    

Results so far...

RPi 3 still shows the same behavior although not as often. I've now 
changed the power supply and am still seeing the same issue. The last 
thing on my list is the interface but I don't have a spare so that's 
going to be tough to test.

It seems to only crash asterisk when initially connecting to a remote 
node and as soon as asterisk restarts, the connection works fine.

How very odd.

Matt

M0LMK

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