DETERMINING SHARED NODES BETWEEN SNAPSHOTS USING PROBABILISTIC DATA STRUCTURES

• Main Authors: Sarkar, Subhradyuti, Wang, Wenguang, Xiang, Enning, Singh, Pranay, Rastogi, Nitin
• Format: Patent
• Language: English
• Published: 26.01.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present disclosure is related to methods, systems, and machine-readable media for determining shared nodes between snapshots using probabilistic data structures. A unique identifier can be assigned to each node of a first tree data structure corresponding to a first snapshot of a virtual computing instance (VCI). A first probabilistic data structure representing the first tree data structure can be created that includes hashes of the identifiers assigned to the nodes of the first tree data structure. A unique identifier can be assigned to each node of a second tree data structure corresponding to a second snapshot of the VCI. A second probabilistic data structure representing the second tree data structure can be created that includes hashes of the identifiers assigned to the nodes of the second tree data structure. A particular node of the second tree data structure can be determined to be shared by the first tree data structure responsive to a determination that the first probabilistic data structure includes a hash of an identifier assigned to the particular node.