The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2024
Filed:
May. 18, 2021
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Mikhail Danilov, Saint Petersburg, RU;
Andrei Paduroiu, Bellevue, WA (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
The described technology is generally directed towards fine-grained data expiration to reduce storage capacity used in a streaming data storage system. Segments of events are scanned, with each event's payload evaluated to determine whether that event is expired or unexpired. For example, for a log event, an expiration period can be determined based on the event creation time and the event logging level, both of which are typically within the log event's payload. Unexpired events are copied to a new destination segment that replaces the original, scanned source segment; the expired events are deleted when the source segment is deleted, reclaiming storage capacity used by the expired events. Also described is maintaining and using segment and chunk metadata to bypass individual event processing when the metadata indicates that the chunk contains only expired events and can be safely deleted.