[arm-allstar] not connecting to certain nodes - node table database file

[David McGough]

Hi David,

I doubt the problem is at your end. The HamVoIP DNS system has 
time-to-live (TTL) values set very short, so nothing gets cached for very 
long, in fact no more than a couple minutes.

Under HamVoIP, you can use the dns-query tool to confirm what the latest 
node info is. For example, here are lookups from my system for the 2 nodes 
in question.  Is this right?  Does your system show the same results?

[root at RPi4B-dev ~]# dns-query 51046
+OK|radio at 73.12.188.165:4569/51046,73.12.188.165

[root at RPi4B-dev ~]# dns-query 2585 
+OK|radio at 198.211.100.73:4569/2585,198.211.100.73


I expect that the problem is on node 2585. My suspicion is that it uses 
the older downloaded file lookup method and 2285 doesn't have the latest 
node data.  This problem is getting reported regularly these days, 
unfortunately, sometimes taking an extended amount of time before 
it resolves itself. For example, I assisted in moving some nodes a couple 
weeks ago, where an IP address change occurred. Some users couldn't 
reconnect for a whole day!! These users were all downloading the 
nodelist file, not using DNS lookup.

73, David KB4FXC



On Mon, 15 Jun 2020, "David Panscik via ARM-allstar" wrote:

>  Hi Doug,
Perhaps I need to flush my DNS cache?  Does HAMVOIP on the Pie do local DNS caching?

My node number is 51046
I cannot connect to 2585
This happened approximately a month ago.  Upgrading Hamvoip solved the problem.  Im thinking DNS or some sort of cache gets cleared out when the upgrade happens.
My node travels between two different internet connections.  Im thinking perhaps something gets corrupted or confused.

Thanks for your help.
David
    On Sunday, June 14, 2020, 07:54:29 PM PDT, Doug Crompton via ARM-allstar <arm-allstar at hamvoip.org> wrote:  
 
 astdb has nothing to do with connections to other nodes. It is simply a
database to give additional information about the node NOT routing
information. Routing information is via DNS.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Sun, Jun 14, 2020 at 10:52 PM "Tony via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> On 6/14/20 5:06 PM, "David Panscik via ARM-allstar" wrote:
> > Hi Doug,
> > Today I noticed my node isnt connecting to certain nodes.
> >
> > Im wondering if the node table/database on my node has gotten corrupted.
> > Where can I find the table of nodes on a raspberry pi?  I would like to
> delete this file and do a fresh download of the table.
>
> You don't need to delete anything. Just type astdb.php at a prompt and
> /var/log/asterisk/astdb.txt will be rebuilt.
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