[arm-allstar] Transmit hangs when asterisk reloads config

Tue May 7 11:24:30 EDT 2019

You can manipulate the files safely if you do the following sequence.  This
relies on the fact that "mv -f" will use the rename(2) system call which is
an atomic kernel call.

good weather case:
cp good_weather_tone.gsm ctN.gsm.tmp
mv -f ctN.gsm.tmp ctN.gsm

bad weather case:
cp bad_weather_tone.gsm ctN.gsm.tmp
mv -f ctN.gsm.tmp ctN.gsm

When asterisk calls the play routine it will always see a ctN.gsm file.
This approach of creating a new file with a temporary name and then doing a
"mv -f" (or calling the rename() system call in the programming language of
your choice), is always a good practice to avoid having a window when the
file does not exist.

-Doug-

On Mon, May 6, 2019 at 9:30 PM "Doug Crompton via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Arron,
>
>   Yes at least the way things are now that is probably not a good idea.
> Using an audio file and changing it might be the answer for now but that
> too might cause a problem if the courtesy tone request hits when you are
> changing the file.  Give it a try and see if it works OK. We have this on
> our list of things that need improvement and we will be looking at that  in
> the future. For now it is probably best to not do it by reloading the file.
>
>
> *73 Doug*
>
> *WA3DSP*
>
> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>
> On Tue, May 7, 2019 at 12:05 AM Aaron Hulett <ahulett at live.com> wrote:
>
> > Yes, it's hamvoip on a private node controlling a Yaesu DR-2X, and it has
> > the latest updates. Here's version info:
> >
> > Firmware Version RPi2-3 Version 1.5rc6-7 Allstar - February 24, 2019
> >
> > AllStar version Asterisk
> > 1.4.23.pre.hamvoip-V1.4.3-54-app_rpt-0.327-04/28/2019
> >
> > Linux kernel version 4.14.97-1-ARCH
> > gcc version 8.2.1 20181127
> >
> >
> > Now that you said that isn't normal and if I'm manually reloading config,
> > I walked through everything I've done, and I believe I've got it. I
> wrote a
> > script to check the weather watches/warinings and it runs every 5
> minutes.
> > Part of it is changing the courtesy tone if there's bad weather, and, it
> > does this via the change_telemetry script as I'm changing it through the
> > telemetry settings. I don't check to see if the state changes, so every 5
> > minutes it runs change_telemetry.
> >
> > Sounds like I need to rethink this, such as using an audio file for the
> > courtesy tone and replacing the file rather than changing the config?
> >
> > 73,
> > Aaron
> >
> >
> > -----Original Message-----
> > From: ARM-allstar <arm-allstar-bounces at hamvoip.org> On Behalf Of "Doug
> > Crompton via ARM-allstar"
> > Sent: Monday, May 6, 2019 22:48
> > To: ARM Allstar <arm-allstar at hamvoip.org>
> > Cc: Doug Crompton <wa3dsp at gmail.com>
> > Subject: Re: [arm-allstar] Transmit hangs when asterisk reloads config
> >
> > Arron,
> >
> >  Are you running hamvoip SW? We do not show you registered with any
> > hamvoip code.  If you are make sure you are updated. We have never seen
> > anything like this happen in hamvoip. What do you mean by "reload its
> > config"  Do you mean restart? Are you manually reloading a config file.
> >
> >
> > *73 Doug*
> >
> > *WA3DSP*
> >
> > *
> >
> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.crompton.com%2Fhamradio&data=02%7C01%7C%7C36e74a5e8d6c42b234f508d6d29eda0c%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636927977040601031&sdata=9a09JvB9aUVtAqM6Mc3utY5J509Jf%2B3pvgV5inhvqbI%3D&reserved=0
> > <
> >
> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.crompton.com%2Fhamradio&data=02%7C01%7C%7C36e74a5e8d6c42b234f508d6d29eda0c%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636927977040601031&sdata=9a09JvB9aUVtAqM6Mc3utY5J509Jf%2B3pvgV5inhvqbI%3D&reserved=0
> > >*
> >
> > On Mon, May 6, 2019 at 11:45 PM "Aaron Hulett via ARM-allstar" <
> > arm-allstar at hamvoip.org> wrote:
> >
> > > Hi all,
> > >
> > > Running into an issue where when something comes along and causes
> > > asterisk to reload its config, if someone's transmitting into the
> > > repeater at that time, the Pi will keep PTT keyed even after the other
> > > person lets up. If it times out, it clears PTT and all is good, or if
> > > someone comes back and keys and lets up, this 'cycling' of COS also
> > > takes care of it. This happens maybe every 5 to 10 minutes and only if
> > > someone's transmitting in... I haven't locked on a constant time yet
> but
> > it's in that range.
> > >
> > > Any idea why reloading the config would cause PTT to stick? Or, should
> > > the question be why is asterisk reloading its config so often (and how
> > > do I find the source and / or stop it from happening)?
> > >
> > > 73,
> > > Aaron | K8AMH
> > >
> > >
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> > >
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> >
> > Visit the BBB and RPi2/3 web page -
> >
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