[arm-allstar] Pi lockup

[David McGough]

Hi Everyone,

Okay, after a fair amount of testing, we've found the (or at lease ONE)  
cause of this issue. The problem is a combination of out-bound, 
permanent connections and DNS resolution failures from a non-local DNS 
server which becomes unavailable.

A work-around solution is simple: always use the local 127.0.0.1 DNS 
server pre-installed on RPi, as part of the HamVoIP image.

We're testing/developing a packaged update solution for this issue now.

We'll have more discussion about this shortly.


73, David KB4FXC




On Wed, 5 Dec 2018, "DAVID HARESNAPE via ARM-allstar" wrote:

> We have a node here in the Kansas City area doing the same thing.  It is located on top of a business building, and it has done this twice so far. Internet was lost last Saturday and just came back today around midday. The repeater was down during this time, but came back up when the ISP was restored. We are also using the latest versions, a Pi3, and a DMK URI.  I have not been able to duplicate this with any of our other nodes.  Have not had this problem before, after several years of using Allstar Asterisk.
> 
> If anyone has any ideas on what could be causing this, suggestions appreciated.  Unfortunately, I do not know who the ISP is, nor do we have any control over it, as it is provided for us by someone else.
> 
> Dave Haresnape WB0OUE
> Edgerton, KS
> 
> 
> ----- Original Message -----
> From: "Chris Viningre via ARM-allstar" <arm-allstar at hamvoip.org>
> To: "arm-allstar" <arm-allstar at hamvoip.org>
> Cc: "Chris Viningre" <chrisviningre at gmail.com>
> Sent: Wednesday, December 5, 2018 6:56:51 PM
> Subject: Re: [arm-allstar] Pi lockup
> 
> I have this same problem but I just figured that's the way it was. For me
> it not a big issue. It happens anytime I lose internet for a long period of
> time. This happens every time I'm driving to work. My commute is 1 1/4 hr.
> drive and half of that time I'm in a dead area with not cellphone service.
> I'm unable to control my node in any way. Don't even get a connect
> beep. The only thing I can do is log onto Supermon and control it. Most of
> this time once I get back into cell range everything starts working.
> Sometime It doesn't and I have to restart Asterisk. I have duplicated this
> problem at home by disconnecting my internet and waiting. I haven't made
> note on how long. I hope this information helps.
> 
> Chris Viningre WS5B
> 70 W. Roadrunner
> Salt Flat, Texas 79847
> C:(915) 504-1510
> chrisviningre at gmail.com
> 
> 
> 
> On Tue, Dec 4, 2018 at 4:06 PM "David McGough via ARM-allstar" <
> arm-allstar at hamvoip.org> wrote:
> 
> >
> > Hi Tom,
> >
> > Are you streaming to Broadcastify or writing anything (like audio logs) to
> > the network regularly?
> >
> > I've not been able to duplicate this with "typical" installations, so
> > far.
> > There have been a few reports of issues similar to yours, however.
> >
> > I have duplicated this type issue in one scenario, which probably isn't
> > common for most installations, but is how I've got my systems setup. For
> > all my tower mounted RPi3 systems, I log audio, etc., to a remote NFS
> > share with "spinning" hard drives located on the ground.  Typically the
> > microwave link between the tower top and ground is VERY reliable; up until
> > one day when on-tower power repairs were underway and some power was
> > turned off for several hours.  The NFS share wasn't accessible at that
> > point, and trying to write to it caused the writing process to block---the
> > app_rpt RPT thread, in this case. And, the world stopped spinning, of
> > course (i.e.: repeater was down, dazed and confused).
> >
> > I've got a solution to this problem in progress now.
> >
> > Do you have anything similar in your setup?
> >
> > 73, David KB4FXC
> >
> >
> >
> > On Tue, 4 Dec 2018, "Tom Eaton via ARM-allstar" wrote:
> >
> > > If my pi loses internet connection, node does not work as a controller on
> > > my repeater until internet is back up, can someone tell me why. running
> > > latest update.
> > >
> > > Thanks
> > > Tom KC4CBQ
> > > _______________________________________________
> > >
> > > ARM-allstar mailing list
> > > ARM-allstar at hamvoip.org
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
> > >
> >
> > _______________________________________________
> >
> > ARM-allstar mailing list
> > ARM-allstar at hamvoip.org
> > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> >
> > Visit the BBB and RPi2/3 web page - http://hamvoip.org
> >
> _______________________________________________
> 
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> _______________________________________________
> 
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> 
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>