BSON file size

[Stephen Yee]

Hi,

I'm considering using BSON to serialize some data in my application.

From reading the spec, it looks like the first 4 bytes of the file are interpreted as the total size, in bytes, of the bson document.  Does this limit the total size of any one file to 2,147,483,647 bytes (i.e. the max value of an int32)?

Thanks

[Andrew Morrow]

Hi -

Yes, that is correct. The total size of any one BSON document is limited to 2^31-1 bytes.

Note that MongoDB imposes much smaller document limits internally (see https://docs.mongodb.com/manual/reference/limits/), so if you ever intend for your BSON documents to be stored in MongoDB you must keep them under 16MB.

Thanks,

Andrew

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[Stephen Yee]

Ok thanks Andrew