Pivotal Software, Inc.

Emc IP Holding Company LLC

Emc Corporation

Brian C Hagenbuch

Florian Michael Waas

Jeffrey Ira Cohen

John Glenn Eshleman

Sivaramakrishnan Narayanan

Chad Whipkey

Kurt Harriman

Joy Jie Kent

Gavin John Sherry

Chris Pedrotti

Caleb E Welton

Gavin Sherry

King Lun Choi

Charles F McDevitt

Chad William Whipkey

A first and a second catalog access statement are obtained. For the first catalog access statement, a first lock schedule which includes a catalog resource being locked and a lock strength is obtained. For the second catalog access statement, a second lock schedule which includes a catalog resource being locked and a lock strength are obtained. A potential deadlock between the first and the second catalog access statement is identified, including by comparing the first lock schedule and the second lock schedule.

Method of testing coverage of meta data access patterns within a distributed relational system

A computer readable storage medium includes executable instructions to evaluate an expanded shared-nothing data store configuration. A data redistribution schedule table with specified parameters is formed. Data is redistributed within the expanded shared-nothing data store in accordance with the data redistribution schedule table.

Apparatus and method for expanding a shared-nothing system

A catalog of one or more metadata objects associated with metadata is stored in a persistent manner. The data objects are stored at least in part on a user node included in a data management system. A request associated with accessing a metadata object included in the persistent catalog is received. In response to receiving the request, access to the requested metadata object is provided.

Unified catalog service

A method of analyzing the performance of a query optimizer includes identifying an event trigger. A reproduction object characterizing operational parameters of the customer computer at the time of the event trigger is populated. The reproduction object is transported from the customer computer to a test computer. The reproduction object is analyzed at the test computer to characterize the performance of a query optimizer.

Apparatus and method for analyzing query optimizer performance

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Annapolis, MD, United States of America

Brian C Hagenbuch