公开(公告)号：US09811525B1

公开(公告)日：2017-11-07

申请号：US13827740

申请日：2013-03-14

Applicant: Facebook, Inc.

Inventor： Ruifang Ge ,  Rahul Narayan Iyer ,  Jiakai Liu ,  Kannan Muthukkaruppan ,  Dylan Nugent ,  Anshuman Singh ,  Karthik Ranganathan

IPC: G06F7/00 ,  G06F17/00 ,  G06F17/30

CPC classification number: G06F17/30117

Abstract: The disclosed techniques provide systems and methods for deletion of end-user messages, message threads, attachments, and/or other message information. More specifically, a key-value store residing in computer memory on the storage system is described. Each value in the key-value store is indexed by a key and structured to include multiple column portions associated with multiple column families. In one embodiment, a deletion column family having an associated retention policy for data stored therein is defined.