Patents by Inventor Harini Chandrasekharan

Harini Chandrasekharan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scalable log-based secondary indexes for non-relational databases
    Patent number: 10853182
    Abstract: In response to determining that a secondary index is to be created for a particular table of a non-relational database service, a service component verifies that automated transmission of change records of the table to a log-structured journal has been configured. A given change record comprises a before-image and an after-image associated with a committed database write, and is assigned a unique sequence number. A change record propagator for the secondary index examines change records stored in the journal, and transmits selected change records to an index storage node. The index storage node builds the secondary index using the selected change records.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 1, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Akshat Vig, Lokendra Singh Panwar, Subramanian Sankara Subramanian, Rajaprabhu Thiruchi Loganathan, Parikshit Shivajirao Pol, Rama Krishna Sandeep Pokkunuri, Harini Chandrasekharan
  • SCALABLE LOG-BASED CONTINUOUS DATA PROTECTION FOR DISTRIBUTED DATABASES
    Publication number: 20200012568
    Abstract: In response to determining that continuous data protection is to be enabled for a particular table of a database service, a service component verifies that automated transmission of change records of the table to a log-structured journal has been configured. A given change record comprises a before-image and an after-image associated with a committed database write, and is assigned a unique sequence number. In response to a determination to restore the table as of a specified point in time, a restore record set is identified from the journal with respect to a selected snapshot of the table. The restore record set includes change records which are not represented in the snapshot and are to be represented in the restored table. A restore result table is created using the selected snapshot and the restore record set.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Applicant: Amazon Technologies, Inc.
    Inventors: Akshat Vig, Parikshit Shivajirao Pol, Subramanian Sankara Subramanian, Rama Krishna Sandeep Pokkunuri, Rajaprabhu Thiruchi Loganathan, Harini Chandrasekharan
  • Scalable log-based continuous data protection for distributed databases
    Patent number: 10423493
    Abstract: In response to determining that continuous data protection is to be enabled for a particular table of a database service, a service component verifies that automated transmission of change records of the table to a log-structured journal has been configured. A given change record comprises a before-image and an after-image associated with a committed database write, and is assigned a unique sequence number. In response to a determination to restore the table as of a specified point in time, a restore record set is identified from the journal with respect to a selected snapshot of the table. The restore record set includes change records which are not represented in the snapshot and are to be represented in the restored table. A restore result table is created using the selected snapshot and the restore record set.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 24, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Akshat Vig, Parikshit Shivajirao Pol, Subramanian Sankara Subramanian, Rama Krishna Sandeep Pokkunuri, Rajaprabhu Thiruchi Loganathan, Harini Chandrasekharan