PGX.D/Async

Abstract

Graph querying and pattern matching is becoming an important feature of graph processing as it allows data analysts to easily collect and understand information about their graphs in a way similar to SQL for databases. One of the key challenges in graph pattern matching is to process increasingly large graphs that often do not fit in the memory of a single machine. In this paper, we present PGX.D/Async, a scalable distributed pattern matching engine for property graphs that is able to handle very large datasets. PGX.D/Async implements pattern matching operations with asynchronous depth-first traversal, allowing for a high degree of parallelism and precise control over memory consumption. In PGX.D/Async, developers can query graphs with PGQL, an SQL-like query language for property graphs. Essentially, PGX.D/Async provides an intuitive, distributed, in-memory pattern matching engine for very large graphs.