Preserving a state using snapshots with selective tuple versioning

Selective tuple versioning is used on a file system providing file system snapshots by, receiving a request for updating at least one node and at least a node identification (ID) and associated attributes of the plurality of nodes, generating a new snapshot timestamp indicating the time of the updat...

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Bibliographic Details
Main Authors Kuvent Aviv, Bachar Yariv, Levy Asaf
Format Patent
LanguageEnglish
Published 14.02.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Selective tuple versioning is used on a file system providing file system snapshots by, receiving a request for updating at least one node and at least a node identification (ID) and associated attributes of the plurality of nodes, generating a new snapshot timestamp indicating the time of the updating, duplicating one of a plurality of rows of the nodes in the file system table into a new one of the rows of the file system table with an end time set equal to a new snapshot timestamp if the snapshot has the snapshot timestamp that is greater than a start time and less than the end time of the nodes, and updating the rows of the nodes in the file system table according to the update request, wherein the start time of the nodes is set equal to the new snapshot timestamp.
Bibliography:Application Number: US201514637051