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MongoDB assumes a 64-bit system - does this mean hardware or the kernel of the OS, or both?

This post says that you need a 64-bit system for MongoDB if your data is more than 2 GB.

On my local machine, the 64-bit version of Intel C2D running on 32-bit Mac OS X Leopard, the 64-bit version of MongoDB works without errors.

On the server, a 64-bit machine with 32-bit CentOS 5.0, the 64-bit version of MongoDB will not work. 32 bit works fine.

My question is, does MongoDB require both hardware and the OS kernel 64 bit? If so, why is there a discrepancy in my experience with the above systems?

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MAC OS X is a special case, as it tries to VERY obscure all 32/64 bit content from the user. Leopard, afaik, already supports 64-bit applications with some tricks.

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Source: https://habr.com/ru/post/1764871/

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