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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Since you want to use Linux in your job function, I would suggest you start with Arch Linux OS. https://archlinux.org/ Arch linux and arch based linux's like Manjaro, start you off in teaching you linux by making you install it and do everything from the command line. Nothing gets installed unless you want to install it. They have an extensive Arch Wiki that will walk you through anything you might need to learn.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.