| Re: [paho-dev] paho-dev Digest, Vol 46, Issue 2 |
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Today's Topics:
1. Android MQTT service disconnection issue with QoS=1 and
RabbitMQ server (Milind Utsav)
2. Re: Android MQTT service disconnection issue with QoS=1 and
RabbitMQ server (De Alti, Cristiano)
3. Re: Android MQTT service disconnection issue with QoS=1 and
RabbitMQ server (saurabh patil)
4. Re: Android MQTT service disconnection issue with QoS=1 and
RabbitMQ server (Prashant Kedia)
----------------------------------------------------------------------
Message: 1
Date: Mon, 5 Oct 2015 12:44:36 +0530
From: Milind Utsav <milind.utsavbk@xxxxxxxxx>
To: paho-dev@xxxxxxxxxxx
Subject: [paho-dev] Android MQTT service disconnection issue with
QoS=1 and RabbitMQ server
Message-ID:
<CADgqjRCER_QmjEZPkKuL7CZKt3jZ+mFiA5NcDO0LdMPU5=oxYw@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
I am trying to implement a push notification service for Android clients.
The server is RabbitMQ with the MQTT adapter. The client on Android is of
course, Paho Java client. The server side is Paho in Python sendin QoS 1
messages.
I couldn't get the connection to work reliably. Every now and then, the
connection times out and the client is disconnected. In the RabbitMQ
console, I can see that there are no active consumers listening to the
topic. The Android client doesn't receive messages post that, until you
restart the app, and hence the service. In a real world scenario, I can't
expect customers to reopen the app everytime to get the notifications.
Right now, I am having a keepalive duration of 120s, which improved the
performance of delivery from when the value was 60 s, but only slightly.
Are there any recommendations as to how I should tune my connections to
make them more reliable?
--
Milind Utsav
+91-9742565861 (M)
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Message: 2
Date: Mon, 5 Oct 2015 09:54:41 +0000
From: "De Alti, Cristiano" <Cristiano.DeAlti@xxxxxxxxxxxx>
To: "paho-dev@xxxxxxxxxxx" <paho-dev@xxxxxxxxxxx>
Subject: Re: [paho-dev] Android MQTT service disconnection issue with
QoS=1 and RabbitMQ server
Message-ID: <561248E0.9070503@xxxxxxxxxxxx>
Content-Type: text/plain; charset="windows-1252"
Hi,
I think you need to implement a reconnect logic in the Android app (unless such a logic is already there).
Paho does not attempt to reconnect automatically.
Regards,
Cristiano
On 05/10/2015 09:14, Milind Utsav wrote:
I am trying to implement a push notification service for Android clients. The server is RabbitMQ with the MQTT adapter. The client on Android is of course, Paho Java client. The server side is Paho in Python sendin QoS 1 messages.
I couldn't get the connection to work reliably. Every now and then, the connection times out and the client is disconnected. In the RabbitMQ console, I can see that there are no active consumers listening to the topic. The Android client doesn't receive messages post that, until you restart the app, and hence the service. In a real world scenario, I can't expect customers to reopen the app everytime to get the notifications.
Right now, I am having a keepalive duration of 120s, which improved the performance of delivery from when the value was 60 s, but only slightly.
Are there any recommendations as to how I should tune my connections to make them more reliable?
--
Milind Utsav
+91-9742565861 (M)
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--
Cristiano De Alti
Principal Software Engineer
direct: +39 0433 485468
email: cristiano.dealti@xxxxxxxxxxxx<mailto:cristiano.dealti@xxxxxxxxxxxx>
EUROTECH
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Message: 3
Date: Mon, 5 Oct 2015 16:21:20 +0530
From: saurabh patil <saurabhpatil786@xxxxxxxxx>
To: General development discussions for paho project
<paho-dev@xxxxxxxxxxx>
Subject: Re: [paho-dev] Android MQTT service disconnection issue with
QoS=1 and RabbitMQ server
Message-ID:
<CABqFiPvVhXdeO26VK=BxGxcp0UsJ5Y-DPViJ4dB_k=7odJJ=nQ@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
Hi Milind,
You can use paho android service which takes care of above issues. Below is
the link
https://eclipse.org/paho/clients/android.
On Mon, Oct 5, 2015 at 12:44 PM, Milind Utsav <milind.utsavbk@xxxxxxxxx>
wrote:
> I am trying to implement a push notification service for Android clients.
> The server is RabbitMQ with the MQTT adapter. The client on Android is of
> course, Paho Java client. The server side is Paho in Python sendin QoS 1
> messages.
>
> I couldn't get the connection to work reliably. Every now and then, the
> connection times out and the client is disconnected. In the RabbitMQ
> console, I can see that there are no active consumers listening to the
> topic. The Android client doesn't receive messages post that, until you
> restart the app, and hence the service. In a real world scenario, I can't
> expect customers to reopen the app everytime to get the notifications.
>
> Right now, I am having a keepalive duration of 120s, which improved the
> performance of delivery from when the value was 60 s, but only slightly.
>
> Are there any recommendations as to how I should tune my connections to
> make them more reliable?
>
> --
> Milind Utsav
> +91-9742565861 (M)
>
> _______________________________________________
> paho-dev mailing list
> paho-dev@xxxxxxxxxxx
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/paho-dev
>
--
Thanks and Regards,
*Saurabh Patil*
Co-Founder and Developer
Bizlers Technologies Pvt. Ltd.
www.bizlers.com.
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Message: 4
Date: Mon, 5 Oct 2015 17:01:12 +0530
From: Prashant Kedia <prashantkedia22@xxxxxxxxx>
To: General development discussions for paho project
<paho-dev@xxxxxxxxxxx>
Subject: Re: [paho-dev] Android MQTT service disconnection issue with
QoS=1 and RabbitMQ server
Message-ID:
<CAJQB0YJq3pNwT+YJt+qMWN78=u47X59RZX=c6PX_V5G0bsQn+Q@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
Are you sending an explicit ping to mqtt broker before keepalive interval
passes, in order to keep the connection alive? The thing is, while android
device is in sleep mode (screen is turned off) paho java client api can not
send ping to broker. So if you keep your device in sleep mode longer then
keepalive interval broker will not receive any ping within keepalive
interval and consider it as disconnected.
To make paho java client api work with android you will have to use
AlarmManager to acquire a wake lock and send explicit ping before keepalive
passes. This is not the only issue while using paha java client with
android. You should better use Paho's "Android Service" which takes care of
all such issues.
On Mon, Oct 5, 2015 at 4:21 PM, saurabh patil <saurabhpatil786@xxxxxxxxx>
wrote:
> Hi Milind,
>
> You can use paho android service which takes care of above issues. Below
> is the link
>
> https://eclipse.org/paho/clients/android.
>
> On Mon, Oct 5, 2015 at 12:44 PM, Milind Utsav <milind.utsavbk@xxxxxxxxx>
> wrote:
>
>> I am trying to implement a push notification service for Android clients.
>> The server is RabbitMQ with the MQTT adapter. The client on Android is of
>> course, Paho Java client. The server side is Paho in Python sendin QoS 1
>> messages.
>>
>> I couldn't get the connection to work reliably. Every now and then, the
>> connection times out and the client is disconnected. In the RabbitMQ
>> console, I can see that there are no active consumers listening to the
>> topic. The Android client doesn't receive messages post that, until you
>> restart the app, and hence the service. In a real world scenario, I can't
>> expect customers to reopen the app everytime to get the notifications.
>>
>> Right now, I am having a keepalive duration of 120s, which improved the
>> performance of delivery from when the value was 60 s, but only slightly.
>>
>> Are there any recommendations as to how I should tune my connections to
>> make them more reliable?
>>
>> --
>> Milind Utsav
>> +91-9742565861 (M)
>>
>> _______________________________________________
>> paho-dev mailing list
>> paho-dev@xxxxxxxxxxx
>> To change your delivery options, retrieve your password, or unsubscribe
>> from this list, visit
>> https://dev.eclipse.org/mailman/listinfo/paho-dev
>>
>
>
>
> --
> Thanks and Regards,
>
>
> *Saurabh Patil*
> Co-Founder and Developer
> Bizlers Technologies Pvt. Ltd.
> www.bizlers.com.
>
>
>
> _______________________________________________
> paho-dev mailing list
> paho-dev@xxxxxxxxxxx
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/paho-dev
>
--
Thanks and Regards,
*Prashant Kedia*
Co-Founder and Developer
Bizlers Technologies Pvt. Ltd.
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