Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
jet-train
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Updating data files, commits vs. pull requests
My Jet Train project makes use of GTFS. GTFS stands for General Transit Feed Specification. It models public transportation schedules and their associated geographic information.
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An example of overengineering - keep it WET
I had to rewrite my Jet Train demo to use another data provider, switching from a Swiss one to a Bay Area one. One of the main components of the demo is a streaming pipeline. The pipeline:
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"Once you see the world in terms of data and events, your imagination is the limit!" — Nicolas Frankel.
My favorite project at the moment is Jet Trains, even if right now it has nothing to do with trains. When I joined Hazelcast, my colleague Neil Stevenson showed me a demo project of his. He had recorded the position of the train he was riding on in Italy some time ago and he had used Jet to display the position on the map. I felt it had a lot of unused potentials: the position markers were never removed, there was a single train, etc. So I thought about displaying many trains on the map and moving them "in real-time" (or close to, as there's no such thing as real-time).
- Looking for open source projects that use data pipelines and big data flows
meltano
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Personal Project Guidance
I would use something like meltano or airbyte, but if you really want to use Lambda for extraction I'd say there is no point spinning up a Redshift cluster just for that, Athena would be the way to go and you can use dbt pretty nicely with it and it would keep costs down.
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Open source contributions for a Data Engineer?
Airbyte and Singer/Meltano if you want to learn more about ingestion pipelines. Airbyte and Meltano teams are very welcoming. SQLfluff a shiny SQL linter. Beautiful project with awesome maintainers.
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Looking for open source projects that use data pipelines and big data flows
I know really sure if this is what are you looking for, but take a look at Meltano
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Meltano ELT: Open-Source DataOps for the DevOps Era
I'm not aware of any. I did just open this issue[0] in the Meltano project to open discussion with the team/community. It could be an interesting iteration on the Singer Spec[1] if we find that users are interested in it and it helps solve some bottleneck challenges.
[0] https://gitlab.com/meltano/meltano/-/issues/2616
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Meltano: ELT for the DevOps era — Open source, self-hosted, CLI-first, debuggable, and extensible
Good point! As expected, there's an issue about adding it already: https://gitlab.com/meltano/meltano/-/issues/1175
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Launch HN: Airbyte (YC W20) – Open-Source ELT (Fivetran/Stitch Alternative)
At GitLab, we're not ready to give up on the Singer spec, community, and ecosystem yet, which is why I've been working on Meltano for the past year: https://meltano.com/
We think that the biggest things holding back Singer are the lack of documentation and tooling around taking existing taps and targets to production, and around building, debugging, maintaining, and testing new or existing high-quality taps and targets.
Meltano itself addresses the first problem, and provides a robust and reliable platform for building, running & orchestrating Singer- and dbt-based ELT pipelines.
At the same time, we have been working with some members of the community on a new framework for building taps and targets: https://gitlab.com/meltano/meltano/-/issues/2401, which we have decided to call the Singer SDK: https://gitlab.com/meltano/singer-sdk
What are some alternatives?
pipelinewise - Data Pipeline Framework using the singer.io spec
airbyte - The leading data integration platform for ETL / ELT data pipelines from APIs, databases & files to data warehouses, data lakes & data lakehouses. Both self-hosted and Cloud-hosted.
Logstash - Logstash - transport and process your logs, events, or other data
dagster - An orchestration platform for the development, production, and observation of data assets.
nifi - Apache NiFi
grouparoo - 🦘 The Grouparoo Monorepo - open source customer data sync framework
kotlin - The Kotlin Programming Language.
Prefect - The easiest way to build, run, and monitor data pipelines at scale.
Hazelcast Jet - Distributed Stream and Batch Processing
pipelinewise-tap-mssql - Pipelinewise tap for Microsoft SQL Server