Hoa V Tran

US Patent:

7685602, Mar 23, 2010

Filed:

Jun 5, 2000

Appl. No.:

09/587302

Inventors:

Hoa Thu Tran - Escondido CA, US
Matthew Dickey - San Diego CA, US

Assignee:

Teradata US, Inc. - Miamisburg OH

International Classification:

G06F 9/44
G06F 17/30
G06F 9/46

US Classification:

719311, 707 10, 718106

Abstract:

A multi-node processing system includes a plurality of nodes in which various software components may be executed. To coordinate the control of the software components in the plural nodes, an instance of a manager module may be started in each of the nodes. In one example arrangement, the manager module may include a WINDOWS NT or WINDOWS 2000 service control manager. In the WINDOWS NT or WINDOWS 2000 environment, the software components that are controlled through the service control manager may be services. To perform control of the various software components, requests may be sent to the manager module instance in each of the nodes. The manager module then launches one or more server services in each node to perform the desired control task, which may be start the software component, monitor the software component, or terminate the software component.

US Patent:

7958159, Jun 7, 2011

Filed:

Dec 19, 2005

Appl. No.:

11/311747

Inventors:

Hoa Thu Tran - Escondido CA, US
Choung H. Kim - Torrance CA, US

Assignee:

Teradata US, Inc. - Dayton OH

International Classification:

G06F 7/00

US Classification:

707802, 707634

Abstract:

In a database system, a database request is received, and database software dispatches steps associated with the database request to plural access modules of a database system for execution. Statistics are collected regarding execution of each step by a respective access module in response to receiving an indication of completion by the respective access module. It is determined whether statistics relating to execution of the database request violate one or more predefined rules, and in response to determining that the statistics relating to execution of the database request violate one or more predefined thresholds, one or more actions are performed by the database software.

US Patent:

8090943, Jan 3, 2012

Filed:

Apr 28, 2003

Appl. No.:

10/424968

Inventors:

Hoa Thu Tran - Escondido CA, US

Assignee:

Teradata US, Inc. - Dayton OH

International Classification:

G06F 7/04
G06F 17/30
G06F 9/44
H04N 7/16

US Classification:

713167, 717164, 719331, 707781, 726 22, 726 27

Abstract:

A system, such as a database system, includes a shared library having plural routines. A linking procedure is used in which a routine (referred to as a “first routine”) is linked to a stub library containing stub programs corresponding to other routines that the first routine is authorized to invoke. If no linking error occurs, the first routine is then linked to the shared library. In some implementations, the first routine is one of a user-defined method (UDM), user-defined function (UDF), or stored procedure created in response to a database query language (e. g. , Structured Query Language or SQL) statement.

US Patent:

8099732, Jan 17, 2012

Filed:

Oct 17, 2006

Appl. No.:

11/550150

Inventors:

Hoa Tran - Escondido CA, US
Anita Richards - San Juan Capistrano CA, US
Douglas Brown - Rancho Santa Fe CA, US
Choung Kim - Torrance CA, US

Assignee:

Teradata US, Inc. - Dayton OH

International Classification:

G06F 9/46

US Classification:

718105, 718100

Abstract:

Techniques are presented for skew exception detection within a parallel processing environment. A potential exception is detected when a highest load of a processor within the parallel processing environment exceeds an average load within the parallel processing environment by a given threshold. The potential exception can become a legitimate exception when it exists for a qualified period or time or when it exists and no qualified period of time is noted. In an embodiment, checks for the potential exception occur and are wholly contained within a given configurable interval.

US Patent:

20160188638, Jun 30, 2016

Filed:

Apr 8, 2015

Appl. No.:

14/681174

Inventors:

- Dayton OH, US
Hoa Thu Tran - Escondido CA, US

Assignee:

Teradata US, Inc. - Dayton OH

International Classification:

G06F 17/30
H04L 12/26
H04L 12/911

Abstract:

An apparatus is provided for managing usage of database system resources by concurrent database users of a database system. The apparatus comprises a processor and a storage device communicatively coupled with the processor. The processor is programmed to (i) determine a number of in-use Access Module Processor Worker Tasks (AWTs) based upon at least one system-defined or user-definable Resource Limit rule, (ii) take a difference between the number of in-use AWTs and an AWT limit, and (iii) set the difference equal to a number of available AWTs for a new database job or request.