Daniel C Mcpherson

US Patent:

7603666, Oct 13, 2009

Filed:

Jun 16, 2004

Appl. No.:

10/869129

Inventors:

Daniel C. McPherson - Raleigh NC, US
David M. Wendt - Cary NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9/44

US Classification:

717166, 717162, 717164, 717165, 707 10, 707100, 707102, 709201, 709202

Abstract:

A class loader locates, at run time, a requested code component. The code component is preferably stored on a database, rather than in a file system, to improve its accessibility in a network computing environment. Code components are preferably stored in the database using an organizational structure that reflects a code isolation structure. In this manner, different versions of a particular code component can be retrieved in a transparent, automated manner, depending on information associated with the invocation thereof.

US Patent:

20130297668, Nov 7, 2013

Filed:

May 1, 2012

Appl. No.:

13/461722

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Daniel Charles McPherson - Raleigh NC, US

Assignee:

RED HAT, INC. - Raleigh NC

International Classification:

G06F 15/16

US Classification:

709201

Abstract:

A mechanism for idling an application in a multi-tenant cloud hosting environment is disclosed. A method of the invention includes detecting, by a reverse proxy of a node of a cloud computing architecture, a lack of minimum usage of an application hosted on the node, the application being one of a plurality of applications being hosted on the node and instructing the node to shut down the application in response. The reverse proxy is then; and reconfigured to point to a restarter instead of the application, wherein the restarter restarts the application in response to detecting an access to the application.

US Patent:

20130297672, Nov 7, 2013

Filed:

May 1, 2012

Appl. No.:

13/461712

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Daniel Charles McPherson - Raleigh NC, US

Assignee:

RED HAT, INC. - Raleigh NC

International Classification:

G06F 15/16

US Classification:

709202

Abstract:

A mechanism for tracking applications on a node of a multi-tenant PaaS environment is disclosed. A method of the invention includes providing an agent of a server orchestration system on a multi-tenant node of a network-based application hosting system, wherein the node comprises a virtual machine (VM) of a cloud computing environment configured to host a plurality of Web application components of different owners, and maintaining, by the agent, a plurality of facts about the node. One of the facts is a number of source code management (SCM) software repositories on the node; each software repository containing at least one of the plurality of Web application components, which is determined by and updated by the agent to reflect the number of determined software repositories.

US Patent:

20130297673, Nov 7, 2013

Filed:

May 1, 2012

Appl. No.:

13/461699

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Daniel Charles McPherson - Raleigh NC, US

Assignee:

Red Hat, Inc. - Raleigh NC

International Classification:

G06F 15/16

US Classification:

709203

Abstract:

A mechanism for node selection for a new application in a multi-tenant cloud hosting environment is disclosed. A method of the invention includes receiving a request to host a software application on one of a plurality of nodes of a cloud computing infrastructure, each node configured to host multiple software applications. A set of available nodes from the plurality of nodes can be identified on which the software application can be hosted and the capacity of each identified node to host additional software applications can be determined. Then, a node is selected to host the software application using the determined capacities.

US Patent:

20130297795, Nov 7, 2013

Filed:

May 1, 2012

Appl. No.:

13/461705

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Daniel Charles McPherson - Raleigh NC, US
James Martin Jagielski - Forest Hill MD, US

Assignee:

RED HAT, INC. - Raleigh NC

International Classification:

G06F 15/173

US Classification:

709226

Abstract:

A owner command to an application hosted by a platform as a service (PaaS) system can be performed, in one embodiment, by receiving the command from the authenticated owner at a first resource pool containing a first application component of the application, wherein the first node hosts a plurality of resource pools each containing application components belonging to different application owners. A second resource pool associated with the application is then identified, the second resource pool being hosted on a second node and containing a second application component of the application. The, a command implementation sequence defining the implementation of the received command over multiple application components is executed by performing a first action on the first application component on the first node and performing a second action on the second application component on the second node.

US Patent:

20130326506, Dec 5, 2013

Filed:

May 30, 2012

Appl. No.:

13/483800

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Thomas Wlest - Lehi UT, US
Daniel C. McPherson - Raleigh NC, US

International Classification:

G06F 9/455

US Classification:

718 1

Abstract:

A mechanism for controlling capacity in a multi-tenant Platform-as-a-Service (PaaS) environment in a cloud computing system is disclosed. A method includes detecting, by a resource control module, an occurrence of a trigger event for capacity analysis of virtual machines (VMs) in a multi-tenant PaaS system, obtaining an active capacity metric of each of the VMs, the active capacity metric comprising a result of dividing a number of containers that are currently executing in the VM by a maximum number of active containers allowed to execute in the VM, comparing the active capacity metric of each VM to an active capacity threshold of each VM, when the active capacity metric exceeds the active capacity threshold in all of the VMs in a district of the multi-tenant PaaS system and when a maximum actual capacity of containers in the district is not exceeded, adding a new VM to the district.

US Patent:

20130326507, Dec 5, 2013

Filed:

May 30, 2012

Appl. No.:

13/483861

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Thomas Wiest - Lehi UT, US
Daniel C. McPherson - Raleigh NC, US

International Classification:

G06F 9/455

US Classification:

718 1

Abstract:

A mechanism for controlling utilization in a multi-tenant Platform-as-a-Service (PaaS) environment in a cloud computing system is disclosed. A method includes obtaining, by a resource control module executing on a computing device, an active capacity metric of each virtual machine (VM) of a plurality of VMs in a district of a multi-tenant PaaS system, the active capacity metric comprising a result of dividing a number of containers that are currently executing in the VM by a maximum number of active containers allowed to execute in the VM, determining that the active capacity metric of a source VM in the district exceeds an active capacity threshold associated with the source VM, and migrating at least one of the containers of the source VM to a target VM in the district, wherein the target VM is operating with an active capacity metric below the active capacity threshold associated with the target VM.

US Patent:

20140075432, Mar 13, 2014

Filed:

Sep 7, 2012

Appl. No.:

13/606063

Inventors:

Michael P. McGrath - Schaumburg IL, US
Matthew Hicks - Westford MA, US
Thomas Wiest - Lehi UT, US
Daniel C. McPherson - Raleigh NC, US

International Classification:

G06F 9/455

US Classification:

718 1

Abstract:

A mechanism for application partitioning in a multi-tenant PaaS environment in a cloud computing system is disclosed. A method of embodiments includes receiving, by a virtual machine (VM), a request to initialize a container on the VM, the container comprising a resource-constrained space of the VM to execute functionality of an application of a multi-tenant PaaS system. The method also includes assigning a user identification (UID) and non-volatile resources to the container, wherein the UID and non-volatile resources are part of a subset of UIDs and a subset of non-volatile resources allotted to the VM from a range of UIDs and a range of non-volatile resources associated with a district of the VM, and wherein other VMs in the district are not allotted the same subset of UIDs from the range of UIDs or the same subset of non-volatile resources from the range of non-volatile resources.