[asterisk-users] Asterisk stopped after Internet connection dropped ?! Asterisk 1.4.26.1

[bruce bruce]

This was a static IP. Further checks into the server prevails that there are
no logs of what happened on the 24th and 25th even in /var/log/messages.
This makes me believe that a hardware lockup has happened and according to
people on CentOS forum this is VERY HARD to diagnose as there will be no
logs. Even MS Blue Screed Of Death does a better job of logging at instances
like this :-(

On Thu, Jul 29, 2010 at 10:13 PM, Lyle Giese <lyle at lcrcomputer.net> wrote:

>  Lyle Giese wrote:
>
> bruce bruce wrote:
>
> I am not sure why it would be sleeping. I have never dealt with putting a
> linux server to sleep. It is connected to a UPS, but I don't think it has
> been put to sleep by the UPS as the USB cable from UPS is not connected to
> it.
>
>  Can you please elaborate on what you mean by AMI:Ping? Is there a service
> that you recommand that does this or are there any opensource monitoring
> tools out there that I can use?
>
>  But my main question remains why there are no activities on 24th and
> 25th?
>
>
>  This is what I see in the /var/log/messages.1:
>
>  Jul 23 17:11:55 elastix last message repeated 20 times
> Jul 23 17:22:51 elastix last message repeated 38 times
> Jul 23 17:30:39 elastix last message repeated 26 times
> Jul 23 17:30:39 elastix last message repeated 45 times
> Jul 23 19:09:42 elastix ntpd[3113]: synchronized to 216.216.216.216,
> stratum 2
> Jul 23 20:17:44 elastix ntpd[3113]: synchronized to 216.216.216.216,
> stratum 2
> Jul 23 21:29:16 elastix dhclient: DHCPREQUEST on eth0 to 192.168.1.254 port
> 67
> Jul 23 21:29:16 elastix dhclient: DHCPACK from 192.168.1.254
> Jul 23 21:29:16 elastix dhclient: bound to 192.168.1.100 -- renewal in
> 37640 seconds.
> Jul 26 09:22:37 elastix syslogd 1.4.1: restart.
> Jul 26 09:22:37 elastix kernel: klogd 1.4.1, log source = /proc/kmsg
> started.
> Jul 26 09:22:37 elastix kernel: Linux version 2.6.18-164.el5 (
> mockbuild at builder16.centos.org) (gcc version 4.1.2 20080704 (Red Hat
> 4.1.2-46)) #1 SMP Thu Se$
> Jul 26 09:22:37 elastix kernel: BIOS-provided physical RAM map:
>
>  Morning of the 26th at 9:22 the server was restarted because it was
> un-reachable from outside and hence the restart log but where is the 24th,
> and 25th?
>
>  Thanks,
> Bruce
>
> On Thu, Jul 29, 2010 at 9:10 AM, Paul Belanger <
> paul.belanger at polybeacon.com> wrote:
>
>> On Wed, Jul 28, 2010 at 9:06 PM, bruce bruce <bruceb444 at gmail.com> wrote:
>>  > See the jump from Jul 23rd to Jul 26th. Is this an indication of
>> Asterisk
>> > being down?
>> >
>>  No, it just means there was no logger activity for those days.  You
>> need to add a monitoring solution to your Asterisk box (IE: AMI:
>> Ping).
>>
>> --
>> Paul Belanger | dCAP
>> Polybeacon | Consultant
>> Jabber: paul.belanger at polybeacon.com | IRC: pabelanger (Freenode)
>> blog.polybeacon.com
>>
>> --
>>
>   It's 'well known' that Asterisk gets confused and runs around in a very
> tight loop when DNS resolution is failing.  Asterisk does a lot of DNS
> queries and when the Internet goes down, that puts Asterisk into a loop.
>
> Depending on your machine, I am guessing that Asterisk locked up or dropped
> out on the 23rd and the restart on the 26th brought it back to life.
>
> Nagios is a good choice for monitoring servers and services.  I use it here
> to monitor all the servers and SIP on my Asterisk box.
>
> Lyle Giese
> LCR Computer Services, Inc.
>
>  While the above comment about DNS holds, I also realized that most likely
> your Asterisk machine lost it's only ip address when the DSL went down.
> That may also have caused Asterisk to exit.  I think most(if not all) admins
> here would never have a dynamic ip address on an Asterisk server.
>
>
> Lyle Giese
> LCR Computer Services, Inc.
>
>
> --
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