公开(公告)号：US10762051B1

公开(公告)日：2020-09-01

申请号：US16048710

申请日：2018-07-30

Applicant: Amazon Technologies, Inc.

Inventor： Ravishankar Bhagavandas ,  Aaron B. Fernandes ,  Zehua Wang ,  Jiabin Li ,  Huihui Li

IPC: G06F7/00 ,  G06F16/174 ,  G06F16/11 ,  G06F16/13

Abstract: A system obtains a first data chunk and a second data chunk of a plurality of data chunks associated with a first data snapshot of a computing system. A hash record is assigned to a data chunk, and used to create a hash value that is written to a first lookup table. The hash function is selected from a plurality of hash functions. The system creates a first archive by saving the plurality of data chunks and the first lookup table to a datastore. The system writes a second hash record for the individual data chunks to a second lookup table using the same hash functions that were used for the first lookup table. Dissimilar hash values between the first lookup table and the second lookup table are identified, and a second archive that includes data chunks with different data from the corresponding data chunks from the first data snapshot is created based on the data chunks with the dissimilar hash values.

公开(公告)号：US11461163B1

公开(公告)日：2022-10-04

申请号：US16457525

申请日：2019-06-28

Applicant: Amazon Technologies, Inc.

Inventor： Piyush Aggarwal ,  Ravishankar Bhagavandas ,  Albert Daniel Prego

IPC: G06F11/07 ,  G06F8/65

Abstract: A method and system for correcting embedded device errors. The method may include receiving a first log generated by a first device though a first channel, receiving a second log generated by the first device that identifies a malfunction of the first device through a second channel, determining a corrective action to cause the first device to cease the malfunction, based at least in part on the second log and an inference model, and sending a message to a second device based at least in part on the corrective action.