Hadoop SDK need more memory？

[neuyilan]

Hi, I saw the following message on the official website and I want to know why?
Does this mean that when I use Hadoop SDK to read/write data, I need more memory compared to using mount fuse to read/write local files?

JuiceFS Hadoop Java SDK may require an additional 4 * juicefs.memory-size off-heap memory to speed up read and write performance

[tangyoupeng]

Yes, but you can get better performance when used in Hadoop.