Patents by Inventor Anastasios Argyros

Anastasios Argyros 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).

  • Patent number: 10229175
    Abstract: An event tap associated with a server, such as a Web server, at a machine can transform a server event into a tuple, select a database node for the tuple, and place the tuple in a queue for that database node, and then flush the queue periodically directly into database notes. The use of an event tap can thus reduce the computational burden on the database while keeping the server event data in the database relatively fresh.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: March 12, 2019
    Assignee: Teradata US, Inc.
    Inventors: George Candea, Anastasios Argyros, Mayank Bawa
  • Patent number: 9684554
    Abstract: A system and method for using failure casting to manage failures in computer system. In accordance with an embodiment, the system uses a failure casting hierarchy to cast failures of one type into failures of another type. In doing this, the system allows incidents, problems, or failures to be cast into a (typically smaller) set of failures, which the system knows how to handle. In accordance with a particular embodiment, failures can be cast into a category that is considered reboot-curable. If a failure is reboot-curable then rebooting the system will likely cure the problem. Examples include hardware failures, and reboot-specific methods that can be applied to disk failures and to failures within clusters of databases. The system can even be used to handle failures that were hitherto unforeseen—failures can be cast into known failures based on the failure symptoms, rather than any underlying cause.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 20, 2017
    Assignee: Teradata US, Inc.
    Inventors: George Candea, Mayank Bawa, Anastasios Argyros
  • Publication number: 20170132096
    Abstract: A system and method for using failure casting to manage failures in computer system. In accordance with an embodiment, the system uses a failure casting hierarchy to cast failures of one type into failures of another type. In doing this, the system allows incidents, problems, or failures to be cast into a (typically smaller) set of failures, which the system knows how to handle. In accordance with a particular embodiment, failures can be cast into a category that is considered reboot-curable. If a failure is reboot-curable then rebooting the system will likely cure the problem. Examples include hardware failures, and reboot-specific methods that can be applied to disk failures and to failures within clusters of databases. The system can even be used to handle failures that were hitherto unforeseen failures can be cast into known failures based on the failure symptoms, rather than any underlying cause.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 11, 2017
    Applicant: Teradata Corporation
    Inventors: George Candea, Mayank Bawa, Anastasios Argyros
  • Publication number: 20150142725
    Abstract: An event tap associated with a server, such as a Web server, at a machine can transform a server event into a tuple, select a database node for the tuple, and place the tuple in a queue for that database node, and then flush the queue periodically directly into database notes. The use of an event tap can thus reduce the computational burden on the database while keeping the server event data in the database relatively fresh.
    Type: Application
    Filed: September 10, 2014
    Publication date: May 21, 2015
    Inventors: George Candea, Anastasios Argyros, Mayank Bawa
  • Patent number: 8849746
    Abstract: An event tap associated with a server, such as a Web server, at a machine can transform a server event into a tuple, select a database node for the tuple, and place the tuple in a queue for that database node, and then flush the queue periodically directly into database nodes. The use of an event tap can thus reduce the computational burden on the database while keeping the server event data in the database relatively fresh.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 30, 2014
    Assignee: Teradata US, Inc.
    Inventors: George Candea, Anastasios Argyros, Mayank Bawa
  • Publication number: 20140201565
    Abstract: A system and method for using failure casting to manage failures in computer system. In accordance with an embodiment, the system uses a failure casting hierarchy to cast failures of one type into failures of another type. In doing this, the system allows incidents, problems, or failures to be cast into a (typically smaller) set of failures, which the system knows how to handle. In accordance with a particular embodiment, failures can be cast into a category that is considered reboot-curable. If a failure is reboot-curable then rebooting the system will likely cure the problem. Examples include hardware failures, and reboot-specific methods that can be applied to disk failures and to failures within clusters of databases. The system can even be used to handle failures that were hitherto unforeseen failures can be cast into known failures based on the failure symptoms, rather than any underlying cause.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: Teradata Corporation
    Inventors: George Candea, Mayank Bawa, Anastasios Argyros
  • Patent number: 8359495
    Abstract: A system and method for using failure casting to manage failures in a computer system. In accordance with an embodiment, the system uses a failure casting hierarchy to cast failures of one type into failures of another type. In doing this, the system allows incidents, problems, or failures to be cast into a (typically smaller) set of failures, which the system knows how to handle. In accordance with a particular embodiment, failures can be cast into a category that is considered reboot-curable. If a failure is reboot-curable then rebooting the system will likely cure the problem. Examples include hardware failures, and reboot-specific methods that can be applied to disk failures and to failures within clusters of databases. The system can even be used to handle failures that were hitherto unforeseen—failures can be cast into known failures based on the failure symptoms, rather than any underlying cause.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: January 22, 2013
    Assignee: Teradata US, Inc.
    Inventors: George Candea, Mayank Bawa, Anastasios Argyros
  • Patent number: 8156107
    Abstract: The present invention addresses the problem of partitioning database relations across a plurality of hosts in a shared-nothing cluster while minimizing communication costs. A new partitioning approach for database relations—join-partitioning—is introduced that focuses on relations and their dependencies to a priori partition the plurality of relations to the plurality of hosts such that each host can locally compute a large class of queries over its partitioned data in isolation at query time, independent of other hosts in the cluster. Such an approach thus overcomes the primary bottleneck, i.e., the network, in deploying database systems over shared-nothing clusters by allowing them to seamlessly scale linearly to tens of thousands of hosts and manage tens or hundreds of terabytes of data.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: April 10, 2012
    Assignee: Teradata US, Inc.
    Inventors: Mayank Bawa, Anastasios Argyros, George Candea
  • Publication number: 20080244585
    Abstract: A system and method for using failure casting to manage failures in computer system. In accordance with an embodiment, the system uses a failure casting hierarchy to cast failures of one type into failures of another type. In doing this, the system allows incidents, problems, or failures to be cast into a (typically smaller) set of failures, which the system knows how to handle. In accordance with a particular embodiment, failures can be cast into a category that is considered reboot-curable. If a failure is reboot-curable then rebooting the system will likely cure the problem. Examples include hardware failures, and reboot-specific methods that can be applied to disk failures and to failures within clusters of databases. The system can even be used to handle failures that were hitherto unforeseen—failures can be cast into known failures based on the failure symptoms, rather than any underlying cause.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 2, 2008
    Applicant: ASTER DATA SYSTEMS, INC.
    Inventors: George Candea, Mayank Bawa, Anastasios Argyros
  • Publication number: 20080189239
    Abstract: The present invention addresses the problem of partitioning database relations across a plurality of hosts in a shared-nothing cluster while minimizing communication costs. A new partitioning approach for database relations—join-partitioning—is introduced that focuses on relations and their dependencies to a priori partition the plurality of relations to the plurality of hosts such that each host can locally compute a large class of queries over its partitioned data in isolation at query time, independent of other hosts in the cluster. Such an approach thus overcomes the primary bottleneck, i.e., the network, in deploying database systems over shared-nothing clusters by allowing them to seamlessly scale linearly to tens of thousands of hosts and manage tens or hundreds of terabytes of data. This description is not intended to be a complete description of, or limit the scope of, the invention.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 7, 2008
    Applicant: ASTER DATA SYSTEMS, INC.
    Inventors: Mayank Bawa, Anastasios Argyros, George Candea
  • Publication number: 20080147673
    Abstract: An event tap associated with a server, such as a Web server, at a machine can transform a server event into a tuple, select a database node for the tuple, and place the tuple in a queue for that database node, and then flush the queue periodically directly into database notes. The use of an event tap can thus reduce the computational burden on the database while keeping the server event data in the database relatively fresh.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Applicant: ASTER DATA SYSTEMS, INC.
    Inventors: George Candea, Anastasios Argyros, Mayank Bawa