Patents by Inventor Karthik Palaiappan

Karthik Palaiappan 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).

  • Causally ordering distributed file system events
    Patent number: 10684992
    Abstract: Implementations are provided herein for using inode revision numbers associated with a modified LIN and a set of Parent LINs to causally order transactions within a distributed file system. Any time an inode is changed, its inode revision number can be incremented by 1. When events within file system are processed causing an inode or a set of inodes to be modified, an event transaction log entry can made. The event transaction log entry can denote a description of the event, a set of modified inode and inode revision number pairs, and a set of parent inode and inode revision number pairs. Entries in the event transaction log can be used to build an inode map for each inode implicated in the event transaction log. The inode map can be used to build a set of direct causal dependencies for each transaction in the event transaction log.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 16, 2020
    Assignee: EMC IP Holding Company LLC
    Inventors: Raeanne Marks, Jonathan M. Walton, Ronald Steinke, Karthik Palaiappan, Tanuj Khurana, Steven Hubbell