Local for the application code on the node you're talking to (just like the read would be local for a Postgres process running on the node), but there's still a

Local for the application code on the node you're talking to (just like the read would be local for a Postgres process running on the node), but there's still a network trip to get to the node, no? Even if the reads are happening locally, if they're going through FUSE (even a "thin" pass-through that does nothing), that means they're getting routed from kernel space to a FUSE daemon, which means you're still doing IPC to another process through a kernel...