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Telemetry is the automatic recording and transmission of data from remote or inaccessible sources to an IT system in a different location for monitoring and analysis.

RDKB Telemetry Components

1. Xconf Server
2. Turris-Omnia with rdkb image
3. HTTP Server

Environment Setup

2.1. Build procedure

Follow the wiki page to make yocto's RDK-B image from yocto workspace in your PC.

Wifi-Extender Yocto Build Instructions

2.2. Image Flash procedure

Refer the below link for image flashing

Turris Omnia Reference Platform: Flashing Instruction

 Xconf server

• Xconf server page :  http://35.155.171.121:9093/admin/ux/

Configuring Telemetry on Xconf server

Change Application to stb in top right corner of the window

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Create Formula

 Login to Xconf Server and go to DCM menu item and click on “Formulas” sub menu and create Formula
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Create Device Settings

Xconf Server → DCM → Device Settings 
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Create LogUpload Settings

Xconf Server → DCM → LogUpload Settings

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http://35.155.171.121:9092/loguploader/getSettings?estbMacAddress=D8:58:D7:00:A5:D6&model=Turris

Configuring Telemetry on Turris Omnia

• Once the board is up , go to /etc/dcm.properties and add the below detail

DCM_LOG_SERVER_URL=http://35.155.171.121:9092/loguploader/getSettings
DCM_HTTP_SERVER_URL=http://35.155.171.121/xconf/telemetry_upload.php
DCM_LA_SERVER_URL=http://35.155.171.121/xconf/logupload.php

• After board boot up, disable log rotation by using the command: 

$ systemctl disable rdkbLogMonitor

1. Restart the dcm-log service using “systemctl restart dcm-log”
2. To check the status of the service “systemctl status dcm-log”
3. By triggering the service , Turris-Omnia starts uploading the logs to the xconf-server
4. The log upload and Telemetry markers can be uploaded via tftp and http
5. The profile can be verified using curl, conf file , through logs and in server as below

Curl Response

Execute the following command in turris board, and ensure the output

$ curl 'http://35.155.171.121:9092/loguploader/getSettings?estbMacAddress=D8:58:D7:00:A5:D6&model=Turris'

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 Configuration file

• Once the profile details are successfully retrieved , the conf file will be created under /tmp which has the server configurations 

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Log File

$ cat /rdklogs/logs/telemetry.log

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$ cat /rdklogs/logs/dcmscript.log

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$ cat /rdklogs/logs/dcmProcessing.log

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Log upload onto HTTP Server

Verify that Json file and zipped log files for all other logs displayed in HTTP server

JSON file upload

• open the uploaded json file and ensure the parameters

http://35.155.171.121/xconf/upload/D858D700A5D6_TELE_11-30-2020-12-31PM.json

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Log Upload

Limitations

Yet to have TFTP server support for log upload