It's not really irrelevant considering the paper outlines that it's important to keep data in the same rack. Disk locality is not that important when you're fu

It's not really irrelevant considering the paper outlines that it's important to keep data in the same rack. Disk locality is not that important when you're fully async, as throughput tends to be similar, however, if your code is not fully async then you usually pay significant penalties in latency, and if multiple nodes are able to access the data then you pay a huge price in caching.