公开(公告)号：US20240126747A1

公开(公告)日：2024-04-18

申请号：US18465232

申请日：2023-09-12

Applicant: Hitachi, Ltd.

Inventor： Toshiyuki HASEGAWA ,  Nobuyuki YAMAMOTO

IPC: G06F16/23 ,  G06F16/2458

CPC classification number: G06F16/2379 ,  G06F16/2343 ,  G06F16/2471

Abstract: A data store comprises a commit management map including an identifier of a distributed transaction. A control method executed by an adapter coupled to the data store includes: alternate processing of, temporarily storing the reception query, and causing a transaction on the data store side to execute the reception query; perpetuation processing of determining whether or not commit is possible using lock information and perpetuating the GXID to be committed and the temporarily stored reception query in a case where commit is possible; settlement processing of causing the transaction on the data store side to execute a GXID addition query that is a query that adds the GXID to be committed to the commit management map and committing the transaction on the data store side; and store restart processing of the adapter starting a new transaction at the data store for a distributed transaction in an in-doubt state.

公开(公告)号：US20170068569A1

公开(公告)日：2017-03-09

申请号：US15308373

申请日：2014-11-17

Applicant: Hitachi, Ltd.

Inventor： Yousuke FUJII ,  Toshiyuki HASEGAWA

IPC: G06F9/48

Abstract: A computer system includes a plurality of processes which execute processing requests, a control unit, and an all-order distribution unit. When the control unit determines execution of a second processing request with a lower priority order than a first processing request, the control unit creates a divided second processing request based on the second processing request in accordance with a division size determined in advance. The all-order distribution unit determines an execution order of one or more processing requests including at least one of one or more divided second processing requests corresponding to one or more second processing requests and one or more first processing requests, and respectively causes the plurality of processes to execute the one or more processing requests in the determined execution order.

Abstract translation: 计算机系统包括执行处理请求的多个处理，控制单元和全序分发单元。 当控制单元确定具有比第一处理请求低的优先级顺序的第二处理请求的执行时，控制单元根据预先确定的划分大小，基于第二处理请求创建划分的第二处理请求。 全阶分配单元确定一个或多个处理请求的执行顺序，包括与一个或多个第二处理请求和一个或多个第一处理请求相对应的一个或多个划分的第二处理请求中的至少一个，并分别使多个 处理以确定的执行顺序来执行一个或多个处理请求。

公开(公告)号：US20180067975A1

公开(公告)日：2018-03-08

申请号：US15561214

申请日：2016-01-29

Applicant: Hitachi, Ltd.

Inventor： Yutaro KATO ,  Takashi SUZUKI ,  Toshiyuki HASEGAWA ,  Nobuyuki YAMAMOTO

IPC: G06F17/30

CPC classification number: G06F16/2272 ,  G06F16/00 ,  G06F16/22 ,  G06F16/24556 ,  G06F16/2471

Abstract: This computer system includes a plurality of nodes for forming a distributed KVS. The plurality of nodes have a plurality of key ranges to which upper-limit data amounts are set, each upper-limit data amounts being an upper limit of an amount of manageable data. When a new key range is created, the plurality of nodes lowers an upper-limit data amount of an existing key range so that the sum of an upper-limit data amount of the new key range and an upper-limit data amount of the existing key range does not exceed a maximum amount which is the amount based on the volume of the memory of the computer apparatus.

公开(公告)号：US20160011903A1

公开(公告)日：2016-01-14

申请号：US14770639

申请日：2013-11-18

Applicant: HITACHI, LTD.

Inventor： Yutaro KATO ,  Toshiyuki HASEGAWA ,  Nobuyuki YAMAMOTO

IPC: G06F9/46

CPC classification number: G06F9/46 ,  G06F17/30489

Abstract: A computer system includes a node including a plurality of processes, an instruction unit that designates a key range of data processed by the process, and a distribution unit. When a first key range is processed by a first process and a third key range, which is a portion of the first key range, is processed by a second process that processes a second key range, the instruction unit transmits a first updated key range to the first process, transmits a second updated key range to the second process, and transmits third range update information including first and second new ranges to the distribution unit. When receiving the third range update information, the distribution unit changes the distribution of the data to be processed. The first process performs data processing in the first updated key range and the second process performs data processing in the second updated key range.

Abstract translation: 计算机系统包括包括多个处理的节点，指定由该处理处理的数据的关键范围的指令单元和分配单元。 当通过第一处理的第一关键范围和作为第一关键字范围的一部分的第三关键字范围由处理第二关键字范围的第二处理处理时，指令单元将第一更新的关键字范围发送到 第一处理将第二更新关键字范围发送到第二处理，并将包括第一和第二新范围的第三范围更新信息发送到分发单元。 当接收到第三范围更新信息时，分配单元改变要处理的数据的分布。 第一处理在第一更新关键字范围内执行数据处理，第二处理在第二更新关键字范围内执行数据处理。