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From Nuwan Jayawardene <nsga...@gmail.com>
Subject Re: How do I monitor properties of my RaspberryPi and send it to an IoT Gateway?
Date Sun, 18 Nov 2018 17:20:04 GMT
Hi Felipe,

I'm not quite sure if this is possible, but have you considered a portable
stream processor that could be run on Edgent?
Perhaps it can maintain certain threshold parameters for resource
utilization in the device and trigger a call to the backend if those are
exceeded.

Thanks and best regards.

On Sun, Nov 18, 2018 at 5:21 PM Christofer Dutz <christofer.dutz@c-ware.de>
wrote:

> Hi Felipe,
>
> If you want to access CPU, Memory and Disk usage, you could have a look at
> this library:
>         <dependency>
>             <groupId>org.fusesource</groupId>
>             <artifactId>sigar</artifactId>
>             <version>1.6.4</version>
>         </dependency>
>
> I am using this in another project and it's working nicely. I'm using is
> in a Scala Akka Actor, but it shouldn't be difficult to see how to use it
> in Java:
>
> https://github.com/chrisdutz/RAPIRO/blob/master/server/telemetry/src/main/scala/de/codecentric/iot/rapiro/telemetry/actors/TelemetryActor.scala
> ... but thinking about it ... I think it would be a great option to add a
> Edgent Source providing such data.
> Because with this, you could eventually create data-streams that adapt to
> the load on the Edge device ...
>
> It shouldn't be hard to implement ... and as I posted in my reply on the
> other thread, I don't think Edgent currently has something like that. I
> just did a quick full-text-search and couldn't find anything?
>
> Feel tempted to implement such a connector? We're currently trying to
> re-initiate the committer-base of Edgent and contributions like this would
> be highly valued :-)
>
> Chris
>
>
>
> ´╗┐Am 18.11.18, 12:44 schrieb "Felipe Gutierrez" <
> felipe.o.gutierrez@gmail.com>:
>
>     Hi,
>
>     On the Edgent documentations is mentioned:
>
>      "You can send data from an Edgent application to your back-end system
> when
>     you need to perform analysis that cannot be performed on the edge
> device,
>     such as:
>
>     Running a complex analytic algorithm that requires more resources,
> such as
>     CPU or memory, than are available on the edge device." (
>     https://edgent.apache.org/docs/overview)
>
>     I understood that the Edgent daemon on the device is constantly
> monitoring
>     its properties (CPU and memory) and this daemon decides to not perform
> the
>     analytics on the RPi when it has lack of resource but perform on a
> layer
>     above. Is it right?
>
>     How can I implement a program using Edgent to send this type of
> metadata to
>     a layer above? Let's say I want to sent metadata regarding CPU, memory
> and
>     storage usage from the RPi to an IoT gateway.
>
>     Thanks,
>     Felipe
>     *--*
>     *-- Felipe Gutierrez*
>
>     *-- skype: felipe.o.gutierrez*
>     *--* *https://felipeogutierrez.blogspot.com
>     <https://felipeogutierrez.blogspot.com>*
>
>
>

-- 

*Nuwan Jayawardene*
Computer Science Undergraduate at Informatics Institute of Technology(IIT),
Colombo
Tel - +94 71 181 3299
https://www.linkedin.com/in/nuwanjaya/
https://medium.com/@nuwanjaya

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