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How MQTT saves battery and supports limited network connectivity?


How MQTT saves battery and supports limited network connectivity?

By : nasservb
Date : November 14 2020, 04:48 PM
To fix this issue Taking into account my comment on the question, assuming you want to compare to HTTP Long polling these 2 links may help to answer your question:
https://www.ibm.com/developerworks/community/blogs/sowhatfordevs/entry/using_mqtt_protocol_advantages_over_http_in_mobile_application_development5?lang=en
code :


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Python supports a limited form of multiple inheritance. In what way limited?

Python supports a limited form of multiple inheritance. In what way limited?


By : Dean Shuh
Date : March 29 2020, 07:55 AM
hop of those help? Apart from @Matt Anderson's answer I think that the limitations is in fact for the old style classes (which the tutorial for Python 2.6 still addresses).
In the Python 3 tutorial the text is now: Python supports a form of multiple inheritance as well.
Detecting limited network connectivity in Android?

Detecting limited network connectivity in Android?


By : 王延伟
Date : March 29 2020, 07:55 AM
Does that help
Is there a good way to determine that the user has a fully functioning network connection?
Does it saves battery when we stop using GPS in android

Does it saves battery when we stop using GPS in android


By : Gutenwursten
Date : March 29 2020, 07:55 AM
I wish this helpful for you You need to differentiate between GPS is on/off and application uses/doesn't use GPS. Most users keep GPS on all the time on their devices. This is just a permission allowing applications to use GPS whenever they want. As long as applications don't actively use GPS, the GPS hardware unit is still off. When application registers a location listener at LocationManager, then Android switches GPS unit on. User will see "GPS active" icon in the right corner of status bar. If user sees this icon, then it means location will be detected and GPS consumes power.
Another aspect to consider is, which location provider is used. If you use "gps" location provider, then you will get most accurate position, but battery consumption will be the highest. If you use "network" provider, then position will be not that accurate, but power consumption will be much less.
Android - Paho Mqtt client does not receive messages once network connectivity changes (mobile data disabled and enabled

Android - Paho Mqtt client does not receive messages once network connectivity changes (mobile data disabled and enabled


By : EmpowerMe
Date : March 29 2020, 07:55 AM
like below fixes the issue The Java client library is at the mercy of the underlying networking API to a certain extent. When publish is called, it will write an MQTT packet to the socket. If that write fails, then connection lost will be called, if that write works then the client library will carry on. The difference in behaviour you are seeing is because the networking libraries are behaving differently in these circumstances.
The MQTT keepalive interval is meant to help with this. Under certain circumstances a TCP connection may appear to be live when it is not. This is especially possible on mobile or satellite connected devices - you can't expect the networking APIs to work exactly the same in all circumstances. Keepalive sends a ping packet to the server and expects a response - if that response is not received, the session is assumed to be closed.
check for device connectivity on network then send action based on connectivity

check for device connectivity on network then send action based on connectivity


By : Saad Mansur
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I am fairly new to bash script even though I have some experience. , try this
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