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:
Jun. 29, 2021
Filed:
Aug. 02, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Nushafreen Dara Palsetia, Mumbai, IN;
Joris Johannes Wils, Framingham, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
An aspect of implementing a Cuckoo tree includes providing a Cuckoo filter table for performing lookups in a Cuckoo tree. The table tracks fingerprints of keys and tablets in which the keys reside. An aspect also includes providing a stash configured to manage duplicate keys in the tree. The stash includes: a key hash table that stores full keys corresponding bucket index references that point to a reverse time ordered list of values corresponding to the full keys; and a value store having buckets with slots for storing the list. An aspect further includes setting a duplicate threshold value in the tree that provides a limit on a number of fingerprints that can exist in a bucket. During a store operation on a key, upon determining the number of existing entries with same fingerprint in target bucket would exceed the threshold, another bucket is selected for the key.