Ncr Corporation

Teradata Us, Inc.

Gregory Korenevsky

Alex P Yung

Bruce Wayne Britton

Steven Feinholz

Stephen Feinholz

A method and computer program for reducing the restart time for a parallel application are disclosed. The parallel application includes a plurality of parallel operators. The method includes repeating the following: setting a time interval to a next checkpoint; waiting until the time interval expires; sending checkpoint requests to each of the plurality of parallel operators; and receiving and processing messages from one or more of the plurality of parallel operators. The method also includes receiving a checkpoint. request message on a control data stream, waiting to enter a state suitable for checkpointing, and sending a response message on the control data stream.

Restartable database loads using parallel data streams

A method and apparatus enables a client system to perform multi-phase parallel operations upon data in a database system. A data transaction request received by the client system. A plurality of multi-phase parallel tasks are executed in response to the request to perform the data operations upon the data in the database.

Method and apparatus for performing parallel data operations

A method and computer program for reducing the restart time for a parallel application are disclosed. The parallel application includes a plurality of parallel operators. The method includes repeating the following: setting a time interval to a next checkpoint; waiting until the time interval expires; sending checkpoint requests to each of the plurality of parallel operators; and receiving and processing messages from one or more of the plurality of parallel operators. The method also includes receiving a checkpoint request message on a control data stream, waiting to enter a state suitable for checkpointing, and sending a response message on the control data stream.

Growing community of inventors

Manhattan Beach, CA, United States of America

Gregory Korenevsky