Accumulating Information with Apache Airflow on a Raspberry Pi | by Dmitrii Eliuseev | Oct, 2023

A Raspberry Pi is All You Want

Raspberry Pi Zero (mannequin 2021), Picture supply Wikipedia

Typically, we have to accumulate some information inside a sure time period. It may be information from the IoT sensor, statistical information from social networks, or one thing else. For example, the YouTube Data API permits us to get the variety of views and subscribers for any channel on the present second, however the analytics and historic information can be found solely to the channel proprietor. Thus, if we wish to get weekly or month-to-month summaries about these channels, we have to accumulate this information ourselves. Within the case of the IoT sensor, there could also be no API in any respect, and we additionally want to gather and save information on our personal. On this article, I’ll present the way to configure Apache Airflow on a Raspberry Pi, which permits operating duties for a protracted time period with out involving any cloud supplier.

Clearly, in the event you’re working for a big firm, you’ll in all probability not want a Raspberry Pi. In that case, in the event you want an additional cloud occasion, simply create a Jira ticket on your MLOps division 😉 However for a pet challenge or a low-budget startup, it may be an fascinating answer.

Let’s see the way it works.

Raspberry Pi

What is definitely a Raspberry Pi? For these readers who’ve by no means been taken with {hardware} for the final 10 years (the primary Raspberry Pi mannequin was launched in 2012), I can briefly clarify that this can be a single-board pc operating full-fledged Linux. Often, a Raspberry Pi has a 1GHz, 2–4-core ARM CPU and 1–8 MB of RAM. It’s small, low-cost, and silent; it has no followers and no disk drive (the OS is operating from a Micro SD card). A Raspberry Pi wants solely a typical USB energy provide; it may be linked through Wi-Fi or Ethernet to a community and run completely different duties inside months and even years.

For my information science pet challenge, I wished to gather the YouTube channel statistics inside 2 weeks. For a activity that requires solely 30–60 seconds twice per day, a serverless structure generally is a excellent answer, and we are able to use one thing like Google Cloud Function for that. However each tutorial from Google began with the phrase “allow billing on your challenge”. There’s free first credit score and free quotas supplied by Google, however I didn’t wish to have one other headache of monitoring how a lot cash I…

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