Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Ludovic Gasc]

Hi Amit,

I'd some daemons that use AsyncAGI, but now, I use FastAGI again because:

1. Asterisk must call the daemon via socket: the realibility of this socket
indicates implicitly that the daemon is alive and answer.

2. With FastAGI, it's really easy to implement the multi-worker pattern
with pre-fork socket like with a http server to distribute the load.
With AsyncAGI, it needs more work and you have a spof with the dispatcher.
In fact, with FastAGI, the dispatcher is the Linux kernel itself, less
risks of bugs.

My personal conclusion is: even if AsyncAGI is younger than FastAGI, it
doesn't seem that it's always better in all situations ;-)

Have a nice week at Astricon.
--
Ludovic Gasc (GMLudo)
http://www.gmludo.eu/

2016-09-21 5:49 GMT+02:00 Amit Patkar :

>

> It means, AMI application is no more running or crashed or lost network
connection with asterisk server.
> In such cases call is neither answered nor disconnected by Asterisk. I
want to detect such state and jump to next dial plan to answer or reject
the calls
>
> Regards
> Amit Patkar
>
> On September 20, 2016 8:07:23 PM GMT+05:30, Matthew Jordan <
mjor...@digium.com> wrote:


>>
>> On Sat, Sep 17, 2016 at 6:26 AM, Amit Patkar  wrote:

>>>

>>>  Hi
>>>
>>>  Is there any way to detect inactivity on channel when AsyncAGI is used?
>>>  I want to detect whether application handling calls using AMI & AGI has
>>>  stopped responding.
>>
>>
>> What do you mean by "stopped responding"?
>>

>>>  Alternatively, how can dialplan check if there is any AMI user
connected and

>>>  decide dial plan execution?
>>>
>>>  Thanks & Regards,
>>>  Amit Patkar
>
>
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Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Matthew Jordan]

On Wed, Sep 21, 2016 at 9:27 AM, Amit Patkar  wrote:
> Thanks Mathew. I understand that there is no coordination between AsyncAGI &
> AMI.
> Is there any dial plan function which can tell us if there is active AMI
> session?
>

Assuming you know the client name (login name), you can use the
AMI_CLIENT [1] dialplan function to retrieve the number of sessions
they have currently established.

[1] https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Function_AMI_CLIENT

-- 
Matthew Jordan
Digium, Inc. | CTO
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com & http://asterisk.org

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Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Amit Patkar]

Thanks Mathew. I understand that there is no coordination between 
AsyncAGI & AMI.
Is there any dial plan function which can tell us if there is active AMI 
session?


Thanks & Regards,
Amit Patkar

On 9/21/2016 6:27 PM, Matthew Jordan wrote:

On Tue, Sep 20, 2016 at 10:49 PM, Amit Patkar  wrote:

>It means, AMI application is no more running or crashed or lost network
>connection with asterisk server.
>In such cases call is neither answered nor disconnected by Asterisk. I want
>to detect such state and jump to next dial plan to answer or reject the
>calls
>

No, there is no automatic coordination mechanism between AsyncAGI and
AMI. In fact, AsyncAGI doesn't know*which*  AMI session is even
managing the channels - it just waits for the appropriate AMI action
to come across and signal something to the channels.

Your external application would have to manage this process. A simple
solution would be to use an AMI library that supports automatic
reconnects. On a reconnect, ask Asterisk for the current channels; if
any exist, handle their recovery either by determining their
application state or by releasing them back to the dialplan.

-- Matthew Jordan Digium, Inc. | CTO 445 Jan Davis Drive NW - 
Huntsville, AL 35806 - USA Check us out at: http://digium.com & 
http://asterisk.org

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Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Matthew Jordan]

On Tue, Sep 20, 2016 at 10:49 PM, Amit Patkar  wrote:
> It means, AMI application is no more running or crashed or lost network
> connection with asterisk server.
> In such cases call is neither answered nor disconnected by Asterisk. I want
> to detect such state and jump to next dial plan to answer or reject the
> calls
>

No, there is no automatic coordination mechanism between AsyncAGI and
AMI. In fact, AsyncAGI doesn't know *which* AMI session is even
managing the channels - it just waits for the appropriate AMI action
to come across and signal something to the channels.

Your external application would have to manage this process. A simple
solution would be to use an AMI library that supports automatic
reconnects. On a reconnect, ask Asterisk for the current channels; if
any exist, handle their recovery either by determining their
application state or by releasing them back to the dialplan.

-- 
Matthew Jordan
Digium, Inc. | CTO
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com & http://asterisk.org

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Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Amit Patkar]

It means, AMI application is no more running or crashed or lost network 
connection with asterisk server.
In such cases call is neither answered nor disconnected by Asterisk. I want to 
detect such state and jump to next dial plan to answer or reject the calls

Regards
Amit Patkar

On September 20, 2016 8:07:23 PM GMT+05:30, Matthew Jordan  
wrote:
>On Sat, Sep 17, 2016 at 6:26 AM, Amit Patkar  wrote:
>> Hi
>>
>> Is there any way to detect inactivity on channel when AsyncAGI is
>used?
>> I want to detect whether application handling calls using AMI & AGI
>has
>> stopped responding.
>
>What do you mean by "stopped responding"?
>
>> Alternatively, how can dialplan check if there is any AMI user
>connected and
>> decide dial plan execution?
>>
>> Thanks & Regards,
>> Amit Patkar
>
>-- 
>Matthew Jordan
>Digium, Inc. | CTO
>445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
>Check us out at: http://digium.com & http://asterisk.org
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Re: [asterisk-users] AsyncAGI - How to jump in dial plan when no action initiated on channel or AMI user is disconnected

[Matthew Jordan]

On Sat, Sep 17, 2016 at 6:26 AM, Amit Patkar  wrote:
> Hi
>
> Is there any way to detect inactivity on channel when AsyncAGI is used?
> I want to detect whether application handling calls using AMI & AGI has
> stopped responding.

What do you mean by "stopped responding"?

> Alternatively, how can dialplan check if there is any AMI user connected and
> decide dial plan execution?
>
> Thanks & Regards,
> Amit Patkar

-- 
Matthew Jordan
Digium, Inc. | CTO
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com & http://asterisk.org

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