Gene V Gleyzer

US Patent:

20120197822, Aug 2, 2012

Filed:

Jan 17, 2012

Appl. No.:

13/352203

Inventors:

Robert H. Lee - San Carlos CA, US
Mark Falco - Burlington MA, US
Gene Gleyzer - Lexington MA, US
Cameron Purdy - Lexington MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06N 5/00

US Classification:

706 10

Abstract:

A system and method is described for use with a data grid cluster, which uses cluster quorum to prevent split brain scenario. The data grid cluster includes a plurality of cluster nodes, each of which runs a cluster service. Each cluster service collects and maintains statistics regarding communication flow between its cluster node and the other cluster nodes in the data grid cluster. The statistics are used to determine a status associated with other cluster nodes in the data grid cluster whenever a disconnect event happens. The data grid cluster is associated with a quorum policy, which is defined in a cache configuration file, and which specifies a time period that a cluster node will wait before making a decision on whether or not to evict one or more cluster nodes from the data grid cluster.

US Patent:

20120198055, Aug 2, 2012

Filed:

Jan 17, 2012

Appl. No.:

13/352195

Inventors:

Mark Falco - Burlington MA, US
Robert H. Lee - San Carlos CA, US
Harvey Eneman - Belmont CA, US
Gene Gleyzer - Lexington MA, US
Cameron Purdy - Lexington MA, US
Alex Gleyzer - Waltham MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A system and method is described for use with a data grid cluster to support death detection. A network ring is formed by connecting a plurality of process nodes in the data grid, wherein each node in the network ring watches another node. A death of a first process node in the network ring can be detected by a second process node, when the second process node notices that its connection to the first process node has closed. The first process node then informs other process cluster nodes in the network ring that the first node is dead. In accordance with an embodiment, machine level death detection can also be supported in the data grid cluster by using an Internet Protocol (IP) monitor.

US Patent:

20120198455, Aug 2, 2012

Filed:

Jan 17, 2012

Appl. No.:

13/352209

Inventors:

Robert H. Lee - San Carlos CA, US
Mark Falco - Burlington MA, US
Gene Gleyzer - Lexington MA, US
Cameron Purdy - Lexington MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 9/46

US Classification:

718100

Abstract:

A system and method is described for use with a data grid cluster, for supporting service level quorum in the data grid cluster. The data grid cluster includes a plurality of cluster nodes that support performing at least one service action. A quorum policy, defined in a cache configuration file associated with the data grid cluster, can specify a minimum number of service members that are required in the data grid cluster for performing the service action. The data grid cluster uses the quorum policy to determine whether the service action is allowed to be performed, based on a present state of the plurality of cluster nodes in the data grid cluster.

US Patent:

20120265924, Oct 18, 2012

Filed:

Sep 21, 2011

Appl. No.:

13/239238

Inventors:

Cameron Purdy - Lexington MA, US
Christer Fahlgren - San Francisco CA, US
Gene Gleyzer - Lexington MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 12/02

US Classification:

711103, 711E12008

Abstract:

A set of data caching techniques are described which are used to seamlessly store data across both RAM and flash based memory. The techniques utilize a memory manager that includes a RAM journal and a flash journal to efficiently store the data and to make the management of the data across both mediums transparent to the user. The flash based journal works in conjunction with the RAM journal and takes the overflow of data from the RAM journal when certain capacity limits are reached. The resource manager uses journaling techniques to write data to the cache and manages the garbage collection created by the data journaling.

US Patent:

20120297056, Nov 22, 2012

Filed:

Sep 21, 2011

Appl. No.:

13/239253

Inventors:

Robert Lee - San Carlos CA, US
Gene Gleyzer - Lexington MA, US
Mark Falco - Burlington MA, US
Cameron Purdy - Lexington MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A centralized resource distribution is described where the decision portion of partitioning data among cluster nodes is made centralized while the actual mechanics to implement the partitioning remain a distributed algorithm. A central distribution coordinator is used to create an extensible central strategy that controls how the data will be partitioned across the cluster. The work to implement this strategy is performed by all of the members individually and asynchronously, in accordance with a distributed algorithm. The central strategy can be communicated to all cluster members and each member can perform the partitioning as it relates to itself. For example, in accordance with the distributed algorithm, one node may decide that it needs to obtain a particular partition in light of the central strategy and carry out the necessary steps to obtain that data, while other nodes may be asynchronously performing other individual partition transfers relevant to those particular nodes.

US Patent:

20130041969, Feb 14, 2013

Filed:

May 16, 2012

Appl. No.:

13/473432

Inventors:

Mark Falco - Burlington MA, US
Patrik Torstensson - Stockholm, SE
Gene Gleyzer - Lexington MA, US
Cameron Purdy - Lexington MA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - REDWOOD SHORES CA

International Classification:

G06F 9/54
G06F 15/167

US Classification:

709212, 719313

Abstract:

A system and method for providing a message bus component or version thereof (referred to herein as an implementation), and a messaging application program interface, for use in an enterprise data center, middleware machine system, or similar environment that includes a plurality of processor nodes together with a high-performance communication fabric (or communication mechanism) such as InfiniBand. In accordance with an embodiment, the messaging application program interface enables features such as asynchronous messaging, low latency, and high data throughput, and supports the use of in-memory data grid, application server, and other middleware components.

US Patent:

20130074083, Mar 21, 2013

Filed:

May 2, 2012

Appl. No.:

13/462720

Inventors:

Brian Oliver - Acton MA, US
Noah Arliss - Lexington MA, US
Gene Gleyzer - Lexington MA, US
Robert H. Lee - San Carlos CA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 9/46

US Classification:

718102, 719318

Abstract:

A system and method can handle storage events in a distributed data grid. The distributed data grid cluster includes a plurality of cluster nodes storing data partitions distributed throughout the cluster, each cluster node being responsible for a set of partitions. A service thread, executing on at least one of said cluster nodes in the distributed data grid, is responsible for handling one or more storage events. The service thread can use a worker thread to accomplish synchronous event handling without blocking the service thread.

US Patent:

20130074101, Mar 21, 2013

Filed:

May 2, 2012

Appl. No.:

13/462719

Inventors:

Brian Oliver - Acton MA, US
Noah Arliss - Lexington MA, US
Gene Gleyzer - Lexington MA, US
Robert H. Lee - San Carlos CA, US

Assignee:

ORACLE INTERNATIONAL CORPORATION - Redwood Shores CA

International Classification:

G06F 9/46

US Classification:

719318

Abstract:

A system and method can provide a server-side event model in a distributed data grid with a plurality of cluster nodes storing data partitions distributed throughout the cluster, each cluster node being responsible for a set of partitions. The system can map one or more event interceptors to an event dispatcher placed in the cluster. The one or more event interceptors can handle at least one event dispatched from the event dispatcher, wherein the at least one event is associated with an operation in the distributed data grid. The system can defer completion of the operation in the distributed data grid pending completion of the handling of the at least one event by said one or more event interceptors.