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Comparison · Analytics
Amundsen vs Apache TsFile
A side-by-side editorial comparison of Amundsen and Apache TsFile — release velocity, themes, recent moves, and the top alternatives to consider.
Amundsen vs Apache TsFile: at a glance
What is Amundsen?
Amundsen's last release was a config flag, and the feed has been silent for two years
Amundsen ships as several separately versioned components — databuilder, metadata, frontend, common — cut from one repository, and the release feed shows the same changelog republished under three different component tags on the same afternoon. Reading past the tag names, the content is overwhelmingly dependabot bumps, Python compatibility-matrix maintenance and mypy upgrades, with real features appearing a couple of times a year. The final release, databuilder 7.5.1 in August 2024, contains exactly one change: a config option for implicit transactions in the neo4j extractor.
What is Apache TsFile?
TsFile is quietly rebuilding itself as an Arrow-speaking interchange format
Apache TsFile is the columnar time-series file format underlying IoTDB, maintained as three parallel implementations in Java, C++ and Python. Recent releases have concentrated on the C++ and Python ends: SIMD paths and parallel reads in 2.4.0, an Arrow-compatible result path from C++ through to Python DataFrames in 2.3.0, and conversion scripts from CSV, Parquet and Arrow into TsFile in 2.3.1. The Java side gets steadier, smaller work — serialized-size calculation, schema modification during writes, encryption configuration.
Amundsen vs Apache TsFile: editorial side-by-side
Amundsen
0.0ANALYTICS
Amundsen's last release was a config flag, and the feed has been silent for two years
◆ Current state
Amundsen ships as several separately versioned components — databuilder, metadata, frontend, common — cut from one repository, and the release feed shows the same changelog republished under three different component tags on the same afternoon. Reading past the tag names, the content is overwhelmingly dependabot bumps, Python compatibility-matrix maintenance and mypy upgrades, with real features appearing a couple of times a year. The final release, databuilder 7.5.1 in August 2024, contains exactly one change: a config option for implicit transactions in the neo4j extractor.
◆ Where it's heading
The direction is contraction. Python 3.7 support was dropped and the matrix narrowed to 3.8 and 3.9 before 3.10 was cautiously added to everything except the metadata service, contributor names moved to emeritus status, and organisations were removed from the README's adopter list. What feature work exists is small and peripheral — a PowerBI logo, aggregated alerts, a gremlin proxy method — rather than anything touching how the catalog works. Nothing has been published since August 2024.
◆ Prediction
There is no signal in these entries of planned work, and a two-year silence following a single-flag release means the practical expectation is no further releases; the component version skew across databuilder, metadata and frontend is now frozen where it stopped.
Apache TsFile
2.5ANALYTICS
TsFile is quietly rebuilding itself as an Arrow-speaking interchange format
◆ Current state
Apache TsFile is the columnar time-series file format underlying IoTDB, maintained as three parallel implementations in Java, C++ and Python. Recent releases have concentrated on the C++ and Python ends: SIMD paths and parallel reads in 2.4.0, an Arrow-compatible result path from C++ through to Python DataFrames in 2.3.0, and conversion scripts from CSV, Parquet and Arrow into TsFile in 2.3.1. The Java side gets steadier, smaller work — serialized-size calculation, schema modification during writes, encryption configuration.
◆ Where it's heading
The centre of gravity has moved from format features to ecosystem reach. Arrow-backed DataFrames and format converters are not about storing time series better; they are about making TsFile readable by the Python analytics stack without a translation layer, which is the gap that keeps a specialized format confined to its own database. The C++ performance work in 2.4.0 serves the same end, since the Python bindings sit on top of it. Version numbering runs on two lines at once, with 1.1.x backports still shipping alongside the 2.x series.
◆ Prediction
Given the direction of the Arrow work, the Python interface is the most likely target for further capability rather than the Java one. The notes do not indicate when the 1.1 maintenance line ends.
Alternatives to Amundsen and Apache TsFile
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Amundsen or Apache TsFile.
OpenDataDiscovery
Four ODD Platform releases in two weeks, and not one of them changes the product
Apache Baremaps
Baremaps got geoparquet and hillshading, then went quiet for eighteen months in incubation
Deequ
Deequ ships GitHub tags whose release notes are one commit message long
Marquez
Marquez spent 2024 turning a lineage store into a UI, then stopped releasing
OpenHouse
LinkedIn's Iceberg control plane, shipping one pull request per release.
See all Amundsen alternatives → · See all Apache TsFile alternatives →
Recent activity from Amundsen and Apache TsFile
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 19d agoApache TsFileSIMD and parallel read paths in Apache TsFile 2.4.0
- 2mo agoApache TsFileCSV, Parquet and Arrow conversion scripts for TsFile 2.3.1
- 3mo agoApache TsFileArrow-backed DataFrames and paginated reads in TsFile 2.3.0
- 3mo agoApache TsFileWrite-time schema changes and read/write encryption in TsFile 2.2.1
- 7mo agoApache TsFilePython text types and C++ tag filtering in TsFile 2.2.0
- 7mo agoApache TsFileBackport maintenance on the TsFile 1.1 line
- 1y agoAmundsenDatabuilder 7.5.1 adds implicit-transaction config for the neo4j extractor
- 2y agoAmundsenDatabuilder 7.5.0 is dependency bumps and a Python 3.10 matrix
- 2y agoAmundsenMetadata 3.13.0 adds aggregating alerts and a gremlin proxy lookup
- 2y agoAmundsenFrontend 4.3.0 republishes the same changelog under a second tag
- 2y agoAmundsenCommon 0.32.0 republishes the same changelog under a third tag
- 2y agoAmundsenMetadata 3.12.3 clears frontend dependency vulnerabilities
Frequently asked questions
What is the difference between Amundsen and Apache TsFile?
They serve adjacent needs but don't currently overlap on shipped themes. Apache TsFile is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Amundsen better than Apache TsFile?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Apache TsFile is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to Amundsen?
Top Amundsen alternatives in Analytics are ranked by recent ship velocity. Browse the "Amundsen alternatives" section above for the current picks, or visit /alternatives/amundsen for the full list with editorial commentary on each.
What are the best alternatives to Apache TsFile?
Top Apache TsFile alternatives in Analytics are ranked by recent ship velocity. Browse the "Apache TsFile alternatives" section above for the current picks, or visit /alternatives/apache-tsfile for the full list with editorial commentary on each.