Patents by Inventor Xavier R. Guerin

Xavier R. Guerin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10296371
    Abstract: In various embodiments a distributed computing node in a plurality of distributed computing nodes executes transactions in a distributed processing system. In one embodiment, a transaction commit message is received from a client computing node for a transaction. The transaction commit message includes at least an identifier of the transaction and a transaction sequence for the transaction. The transaction sequence indicates a sequence of execution for the transaction on the plurality of distributed computing nodes. An entry within the transaction sequence associated with the distributed computing node is identified. The entry includes a sequence number for executing the transaction on the distributed computing node with respect to other transactions. The transaction is executed based on the sequence number in the entry.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: May 21, 2019
    Assignee: International Business Machines Corporation
    Inventors: Xavier R. Guerin, Shicong Meng
  • Patent number: 10157108
    Abstract: In various embodiments a distributed computing node in a plurality of distributed computing nodes logs transactions in a distributed processing system. In one embodiment, a set of information associated with at least one transaction is recorded in a transaction log. At least a portion of memory in at least one information processing system involved in the transaction is accessed. The portion of memory is directly accessed without involving a processor of the at least one information processing system. The set of information from the transaction log is written to the portion of memory. The set of information is directly written to the portion of memory without involving a processor of the at least one information processing system.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: December 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Xavier R. Guerin, Shicong Meng
  • Publication number: 20180329860
    Abstract: A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
    Type: Application
    Filed: July 4, 2018
    Publication date: November 15, 2018
    Inventors: Yuqing Gao, Xavier R. Guerin, Xiaoqiao Meng, Tiia Salo
  • Patent number: 10129332
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 13, 2018
    Assignee: International Business Machines Corporation
    Inventor: Xavier R. Guerin
  • Patent number: 10044797
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 7, 2018
    Assignee: International Business Machines Corporation
    Inventor: Xavier R. Guerin
  • Patent number: 10019408
    Abstract: A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Yuqing Gao, Xavier R. Guerin, Xiaoqiao Meng, Tiia Salo
  • Patent number: 10007609
    Abstract: A data processing system includes a plurality of virtual machines each having associated memory pages; a shared memory page cache that is accessible by each of the plurality of virtual machines; and a global hash map that is accessible by each of the plurality of virtual machines. The data processing system is configured such that, for a particular memory page stored in the shared memory page cache that is associated with two or more of the plurality of virtual machines, there is a single key stored in the global hash map that identifies at least a storage location in the shared memory page cache of the particular memory page. The system can be embodied at least partially in a cloud computing system.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 26, 2018
    Assignee: International Business Machines Corporation
    Inventors: Parijat Dube, Xavier R. Guerin, Seetharami R. Seelam
  • Publication number: 20180124165
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventor: Xavier R. GUERIN
  • Publication number: 20170353538
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: International Business Machines Corporation
    Inventor: Xavier R. GUERIN
  • Patent number: 9774665
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 26, 2017
    Assignee: International Business Machines Corporation
    Inventor: Xavier R. Guerin
  • Patent number: 9742863
    Abstract: For remote direct memory access (RDMA) by a client to a data record stored in a cache on a server, a hash map is received by a client from a server. The hash map includes one or more entries associated with a key for the data record stored in the cache on the server that stores a server-side remote pointer referencing the data record stored in the cache on the server. The client, using the key, looks up the server-side remote pointer for the data record from the hash map, and then performs one or more RDMA operations using the server-side remote pointer that allow the client to directly access the data record stored in the cache on the server.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: August 22, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xavier R. Guerin, Tiia J. Salo
  • Publication number: 20170187789
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Inventor: Xavier R. GUERIN
  • Patent number: 9667711
    Abstract: Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: May 30, 2017
    Assignee: International Business Machines Corporation
    Inventor: Xavier R. Guerin
  • Patent number: 9575927
    Abstract: A server and/or a client stores a metadata hash map that includes one or more entries associated with keys for data records stored in a cache on a server. Each of the entries stores metadata for a corresponding data record, wherein the metadata comprises a server-side remote pointer that references the corresponding data record stored in the cache, as well as a version identifier for the key. A selected data record is accessed using a provided key by: (1) identifying potentially matching entries in the metadata hash map using the provided key; (2) accessing data records stored in the cache using the server-side remote pointers from the potentially matching entries; and (3) determining whether the accessed data records match the selected data record using the provided key and the version identifiers from the potentially matching entries.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: February 21, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xavier R. Guerin, Tiia J. Salo
  • Patent number: 9569400
    Abstract: A server and/or a client stores a metadata hash map that includes one or more entries associated with keys for data records stored in a cache on a server. Each of the entries stores metadata for a corresponding data record, wherein the metadata comprises a server-side remote pointer that references the corresponding data record stored in the cache, as well as a version identifier for the key. A selected data record is accessed using a provided key by: (1) identifying potentially matching entries in the metadata hash map using the provided key; (2) accessing data records stored in the cache using the server-side remote pointers from the potentially matching entries; and (3) determining whether the accessed data records match the selected data record using the provided key and the version identifiers from the potentially matching entries.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: February 14, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xavier R. Guerin, Tiia J. Salo
  • Publication number: 20170004109
    Abstract: A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Inventors: Yuqing Gao, Xavier R. Guerin, Xiaoqiao Meng, Tiia Salo
  • Patent number: 9495325
    Abstract: A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: November 15, 2016
    Assignee: International Business Machines Corporation
    Inventors: Yuqing Gao, Xavier R. Guerin, Xiaoqiao Meng, Tiia Salo
  • Patent number: 9471534
    Abstract: A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
    Type: Grant
    Filed: January 4, 2014
    Date of Patent: October 18, 2016
    Assignee: International Business Machines Corporation
    Inventors: Yuqing Gao, Xavier R. Guerin, Xiaoqiao Meng, Tiia Salo
  • Patent number: 9378179
    Abstract: For remote direct memory access (RDMA) by a client to a data record stored in a cache on a server, a hash map is received by a client from a server. The hash map includes one or more entries associated with a key for the data record stored in the cache on the server that stores a server-side remote pointer referencing the data record stored in the cache on the server. The client, using the key, looks up the server-side remote pointer for the data record from the hash map, and then performs one or more RDMA operations using the server-side remote pointer that allow the client to directly access the data record stored in the cache on the server.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: June 28, 2016
    Assignee: International Business Machines Corporation
    Inventors: Xavier R. Guerin, Tiia J. Salo
  • Publication number: 20160179669
    Abstract: A data processing system includes a plurality of virtual machines each having associated memory pages; a shared memory page cache that is accessible by each of the plurality of virtual machines; and a global hash map that is accessible by each of the plurality of virtual machines. The data processing system is configured such that, for a particular memory page stored in the shared memory page cache that is associated with two or more of the plurality of virtual machines, there is a single key stored in the global hash map that identifies at least a storage location in the shared memory page cache of the particular memory page. The system can be embodied at least partially in a cloud computing system.
    Type: Application
    Filed: March 1, 2016
    Publication date: June 23, 2016
    Inventors: Parijat Dube, Xavier R. Guerin, Seetharami R. Seelam