json-buffet
semi_index
| json-buffet | semi_index | |
|---|---|---|
| 2 | 1 | |
| 0 | 57 | |
| - | - | |
| 3.0 | 10.0 | |
| about 1 year ago | over 11 years ago | |
| C++ | C++ | |
| MIT License | GNU General Public License v3.0 or later |
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json-buffet
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Analyzing multi-gigabyte JSON files locally
And here's the code: https://github.com/multiversal-ventures/json-buffet
The API isn't the best. I'd have preferred an iterator based solution as opposed to this callback based one. But we worked with what rapidjson gave us for the proof of concept.
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Show HN: Up to 100x Faster FastAPI with simdjson and io_uring on Linux 5.19
Ha! Thanks to you, Today I found out how big those uncompressed JSON files really are (the data wasn't accessible to me, so i shared the tool with my colleague and he was the one who ran the queries on his laptop): https://www.dolthub.com/blog/2022-09-02-a-trillion-prices/ .
And yep, it was more or less they way you did with ijson. I found ijson just a day after I finished the prototype. Rapidjson would probably be faster. Especially after enabling SIMD. But the indexing was a one time thing.
We have open sourced the codebase. Here's the link: https://github.com/multiversal-ventures/json-buffet . Since this was a quick and dirty prototype, comments were sparse. I have updated the Readme, and added a sample json-fetcher. Hope this is more useful for you.
Another unwritten TODO was to nudge the data providers towards a more streaming friendly compression formats - and then just create an index to fetch the data directly from their compressed archives. That would have saved everyone a LOT of $$$.
semi_index
What are some alternatives?
japronto - Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.
jq-zsh-plugin - jq zsh plugin
is2 - embedded RESTy http(s) server library from Edgio
json-toolkit - "the best opensource converter I've found across the Internet" -- dene14
reddit_mining
json-streamer - A fast streaming JSON parser for Python that generates SAX-like events using yajl
json_benchmark - Python JSON benchmarking and "correctness".
xsv - A fast CSV command line toolkit written in Rust.
Apache Arrow - Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing
ClickHouse - ClickHouse® is a free analytics DBMS for big data
octosql - OctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.