Leveraging Apache Arrow for Zero-copy, Zero-serialization Cluster Shared Memory

Abstract

This paper describes a distributed implementation of Apache Arrow that can leverage cluster-shared load-store addressable memory that is hardware-coherent only within each node. The implementation is built on the ThymesisFlow prototype that leverages the OpenCAPI interface to create a shared address space across a cluster. While Apache Arrow structures are immutable, simplifying their use in a cluster shared memory, this paper creates distributed Apache Arrow tables and makes them accessible in each node.