[asterisk-users] Exceptionally long queue length queuing

Dovid Bender dovid at telecurve.com
Fri Jul 3 01:31:04 CDT 2020

On Mon, Jun 29, 2020 at 6:46 AM Joshua C. Colp <jcolp at sangoma.com> wrote:

> On Sun, Jun 28, 2020 at 2:26 PM Dovid Bender <dovid at telecurve.com> wrote:
>> Hi,
>> We have a box up and we are starting to see a lot of "Exceptionally long
>> queue length queuing" in the logs. From all the research so far it seems
>> like this leads to their systems crashing and being unreachable. In our
>> case the box remains up and takes calls. We are running Asterisk 16.6.1. We
>> are using MusicOnHold to play online music streams via ffmpeg. Any idea on
>> how to troubleshoot this further to see why this is happening?
> The message occurs when either a channel is deadlocked or the processing
> time to handle what a channel is doing is substantial, and things build up.
> Getting a backtrace[1] at the time it occurs will show what the system is
> actually doing and can provide insight into what is causing it.
> [1]
> https://wiki.asterisk.org/wiki/display/AST/Getting+a+Backtrace#GettingaBacktrace-Runningast_coredumperfordeadlocks,taskprocessorbackups,etc
> .
> --
I ended up re-writing my code to use less Local channels and most of the
errors went away. I also noticed that my load average and CPU usage is way
down. I will open a ticket since it seems  that it may be a bug that others
are experiencing.

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