[b]"What's the best way to handle a json dump for efficient data storage?"[/b] or [b]"How do you properly format a

12 Replies, 694 Views

"Why does my json dump fail when parsing large datasets?"

Ugh, been fighting with this all day. My json dump just *dies* when I throw a big dataset at it. Like, it works fine with small stuff, but the second it’s over a few MB—boom, errors everywhere.

Is it a memory thing? Do I need to chunk it or something?

Or maybe the parser’s just garbage? Using the default json lib in Python, but wondering if there’s a better tool for heavy-duty json dumps.

Also, anyone else run into weird encoding issues? Sometimes it feels like the json dump just nopes out if there’s a sneaky non-UTF8 char hiding in there.

Help a dev out—what’s your go-to fix for this mess?
Yeah, the default json dump in Python can choke on big datasets. Try using `ujson` or `orjson`—they’re way faster and handle large files better.

Also, if you’re hitting memory limits, chunking is your friend. Write the json dump in smaller pieces instead of one giant blob.

For encoding issues, maybe pre-process your data to ensure it’s UTF-8? `json.dumps()` can be picky with weird chars.
Been there! The standard json lib is slow and memory-heavy. Switch to `orjson`—it’s a drop-in replacement and handles large json dumps like a champ.

If you’re stuck with the default lib, try increasing the recursion limit (`sys.setrecursionlimit()`), but be careful with that.

For encoding, `ensure_ascii=False` might help, but yeah, clean your data first.
Honestly, the default json dump is trash for big data. Try `ijson` if you need to stream the data instead of loading it all at once.

Also, check if you’re hitting a memory cap. Python’s garbage collector might not keep up.

For encoding, `chardet` can help sniff out non-UTF8 chars before they wreck your json dump.
If your json dump fails on large datasets, it’s probably a memory issue. Try `json.JSONEncoder` with a custom iterator to break it into chunks.

Or just ditch the standard lib—`rapidjson` is way faster and more efficient.

Encoding problems? Yeah, json.dumps() hates surprises. Use `unicodedata.normalize()` to clean your strings first.
Big json dumps are a pain. The default lib isn’t built for it. Try `simplejson`—it’s more forgiving with large files and has better error handling.

Also, maybe your data’s too nested? Flatten it if you can.

For encoding, `ftfy` can fix weird chars before they break your json dump.
OP here—thanks for the tips! Tried `orjson` and it’s way faster, but now I’m getting a weird "circular reference" error.

Anyone know how to handle that? Also, `ijson` looks promising for streaming—gonna test that next.

And yeah, `chardet` found some sneaky non-UTF8 stuff. Appreciate the help!



Users browsing this thread: 1 Guest(s)