公开(公告)号：US20180137055A1

公开(公告)日：2018-05-17

申请号：US15692818

申请日：2017-08-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vinoth Veeraraghavan ,  Zhibiao Chen

IPC: G06F12/0864 ,  G06F17/30

CPC classification number: G06F12/0864 ,  G06F16/10 ,  G06F16/1805 ,  G06F16/9014

Abstract: A log-structured storage method and a server, where the method includes obtaining a current incremental update of an object when the object is updated, wherein a current version of the object is stored in a log-structured storage area of the server, determining whether there is a previous incremental update of the object stored in the log-structured storage area, writing the current incremental update as a latest incremental update in the log-structured storage area when there is no previous incremental update of the object stored in the log-structured storage area such that the utilization of memory can be improved.

公开(公告)号：US20160125018A1

公开(公告)日：2016-05-05

申请号：US14894042

申请日：2014-01-22

Applicant: HITACHI, LTD.

Inventor： Atsushi TOMODA ,  Yuuya ISODA ,  Kazutomo USHIJIMA

IPC: G06F17/30

CPC classification number: G06F16/2365 ,  G06F16/1805 ,  G06F16/2358 ,  G06F16/2455

Abstract: A database management system generates a log each transaction during execution of a plurality of transactions and stores the generated logs in log storage areas. The database management system records sequence numbers of logs at least in the generated logs of transactions belonging to a set of transactions of which results are different depending on a transaction execution order.

Abstract translation: 数据库管理系统在执行多个事务期间生成日志每个事务，并将生成的日志存储在日志存储区域中。 数据库管理系统至少记录属于根据事务执行顺序的结果不同的一组事务的事务的生成日志中的序列号。

公开(公告)号：US20150200863A1

公开(公告)日：2015-07-16

申请号：US13659816

申请日：2012-10-24

Applicant: GOOGLE INC.

Inventor： Yuguang WU

IPC: H04L12/841 ,  G06F17/30

CPC classification number: H04L47/28 ,  G06F16/1805

Abstract: A system and method for updating timestamps in log data is provided. The log data is accessed to obtain timestamps corresponding to communication between a client device and a server. The timestamps include a first client timestamp corresponding to a time that the client device sends a request to the server, a first server timestamp corresponding a time the that the server receives the request from the client device, a second server timestamp corresponding to a time that the server sends a response to the request to the client device, and a second client stamp corresponding to a time that the client device receives the response from the server. A clock skew between the client device and the server and a network delay are calculated. At least one of the timestamps is updated based on the calculated clock skew and the network delay.

Abstract translation: 提供了用于更新日志数据中的时间戳的系统和方法。 访问日志数据以获得与客户端设备和服务器之间的通信相对应的时间戳。 所述时间戳包括对应于所述客户端设备向所述服务器发送请求的时间的第一客户端时间戳，对应于所述服务器从所述客户端设备接收到所述请求的时间对应的第一服务器时间戳，对应于所述客户端设备的时间的第二服务器时间戳 服务器向客户端设备发送对请求的响应，以及对应于客户端设备从服务器接收响应的时间的第二客户端戳记。 计算客户端设备与服务器之间的时钟偏差和网络延迟。 基于所计算的时钟偏差和网络延迟来更新时间戳中的至少一个。

公开(公告)号：US20150074214A1

公开(公告)日：2015-03-12

申请号：US14546580

申请日：2014-11-18

Applicant: WALDECK TECHNOLOGY, LLC

Inventor： Steven L. Petersen ,  Kunal Kandekar

IPC: H04L12/58 ,  G06F17/30

CPC classification number: H04L51/20 ,  G06F16/1734 ,  G06F16/1805 ,  G06F16/1834 ,  G06F16/40 ,  G06F16/9537 ,  G06Q50/01 ,  H04L51/32 ,  H04L67/22 ,  H04L67/306

Abstract: Systems and methods are provided for following status updates of users. In one embodiment, a requestor selects a Point of Interest (POI). In response, one or more POIs that match the selected POI to at least a predefined threshold degree are identified. Status updates sent by users located at one or more POIs of the one or more matching POIs are delivered to the requestor.

Abstract translation: 系统和方法被提供用于以下用户的状态更新。 在一个实施例中，请求者选择兴趣点（POI）。 作为响应，识别出将所选择的POI匹配至少一个预定阈值度的一个或多个POI。 位于一个或多个匹配POI的一个或多个POI的用户发送的状态更新被递送给请求者。

公开(公告)号：US20130318082A1

公开(公告)日：2013-11-28

申请号：US13855215

申请日：2013-04-02

Applicant: FUJITSU LIMITED

Inventor： Masahiro KATAOKA ,  Takafumi OHTA ,  Takahiro MURATA

IPC: G06F17/30

CPC classification number: G06F16/245 ,  G06F16/152 ,  G06F16/1805 ,  G06F16/284

Abstract: A generation apparatus includes a processor configured to generate existence information indicating that character information including a plurality of continuing characters is included in the file, and in a case that first adscript designation and second adscript designation following to the first adscript designation are included in the file, the first adscript designation designating that first character information is written down with second character information, the second adscript designation designating that third character information is written down with fourth character information, generate another existence information indicating that another character information, which includes an end part of the first character information and a head part of the fourth character information following the end part, is included in the file.

Abstract translation: 生成装置包括：处理器，被配置为生成表示包括多个连续字符的字符信息被包括在文件中的存在信息;以及在文件中包括第一标题指定和第二标题指定之后的第一标题指定和第二标题指定的情况下 指定第一字符信息的第一标题指定用第二字符信息写入，指定第四字符信息的第二标题指定用第四字符信息写下，生成另一个存在信息，指示另一个字符信息，其包括端部 的第一个字符信息和第四个字符信息的头部分在后面的部分被包括在该文件中。

公开(公告)号：US12130810B2

公开(公告)日：2024-10-29

申请号：US18083157

申请日：2022-12-16

Applicant: Palantir Technologies Inc.

Inventor： Mark Elliot ,  Joseph Ellis ,  Rahij Ramsharan ,  Matthew Sills ,  Lawrence Manning

IPC: G06F16/00 ,  G06F16/18 ,  G06F16/215 ,  G06F16/2453 ,  G06F16/2455 ,  G06F16/248

CPC classification number: G06F16/24537 ,  G06F16/1805 ,  G06F16/215 ,  G06F16/2456 ,  G06F16/248 ,  G06F16/24564

Abstract: A database system comprised of a decoupled compute layer and storage layer is implemented to store, build, and maintain a canonical dataset, a temporary buffer, and an edits dataset. The canonical dataset is a set of batch updated data. The data is appended in chunks to the canonical dataset such that the canonical dataset becomes a historical dataset over time. The buffer is a write ahead log that contains the most recent chunks of data and provides atomicity and durability for the database system. The edits dataset is the set of data that contains edits such as cell mutations, row appends and/or row deletions. The database system enables users to make cell or row-level edits to tables and observe those edits in analytical systems or downstream builds with minimal latency.

公开(公告)号：US12099477B2

公开(公告)日：2024-09-24

申请号：US17510551

申请日：2021-10-26

Applicant: EMC IP Holding Company LLC

Inventor： Joseph Yuan Gu ,  Tianfang Xiong ,  Qi Qu ,  Weibing Zhang ,  Lei Gao ,  Wai C. Yim ,  Chen Gong

IPC: G06F15/00 ,  G06F16/16 ,  G06F16/172 ,  G06F16/18 ,  G06F16/182

CPC classification number: G06F16/1844 ,  G06F16/164 ,  G06F16/172 ,  G06F16/1805

Abstract: A method of performing synchronous replication from a primary storage system apparatus (PSSA) to a secondary storage system apparatus (SSSA) is provided. The method includes (a) in response to write requests received by the PSSA, (i) calculating metadata changes by the PSSA for accommodating the write requests, (ii) generating, by the PSSA, metadata journal log entries that describe the metadata changes, and (iii) mirroring the metadata journal log entries from the PSSA to the SSSA; (b) regenerating the metadata changes by the SSSA based on the metadata journal log entries mirrored from the PSSA to the SSSA; and (c) writing the regenerated metadata changes to persistent storage of the SSSA. A method performed by the SSSA is also provided. An apparatus, system, and computer program product for performing similar methods are also provided.

公开(公告)号：US12079193B2

公开(公告)日：2024-09-03

申请号：US17728709

申请日：2022-04-25

Applicant: NetApp, Inc.

Inventor： Richard Parvin Jernigan, IV

IPC: G06F16/00 ,  G06F16/18 ,  G06F16/182 ,  G06F16/22 ,  G06F16/23 ,  G06F16/27 ,  G06F16/28 ,  H04L45/02 ,  H04L45/30

CPC classification number: G06F16/2308 ,  G06F16/1805 ,  G06F16/182 ,  G06F16/22 ,  G06F16/2358 ,  G06F16/27 ,  G06F16/285 ,  H04L45/02 ,  H04L45/30

Abstract: In one embodiment, distributed data storage systems and methods are described for integrating a change tracking manager with scalable databases. According to one embodiment, a computer implemented method comprises managing storage of objects and continuously tracking changes of the objects in a distributed object storage database, creating a record for an object having an object name, the object being stored in a bucket of the distributed object storage database, linking the bucket to a peer bucket based on a directive, generating a peer marker field for the record to store one peer marker of multiple different peer markers depending on a relationship between the bucket and the peer bucket; and automatically adding a work item for the object to the secondary index of a chapter database based on the record being created in the bucket and the peer marker for the peer bucket.

公开(公告)号：US20240264983A1

公开(公告)日：2024-08-08

申请号：US18440834

申请日：2024-02-13

Applicant: CELO FOUNDATION

Inventor： Rene Reinsberg ,  Sepandar Kamvar ,  Marek Olszewski

IPC: G06F16/182 ,  G06F16/18 ,  H04L9/00 ,  H04L9/06 ,  H04L9/08 ,  H04L9/32

CPC classification number: G06F16/1834 ,  G06F16/1805 ,  G06F16/1824 ,  H04L9/0643 ,  H04L9/0819 ,  H04L9/3239 ,  H04L9/3247 ,  H04L9/3255 ,  H04L9/3297 ,  H04L9/50 ,  H04L2209/56

Abstract: Systems and techniques are provided for a decentralized database associating public keys and communications addresses. A signed secret message may be sent by a validator computing device of a peer-to-peer network for a decentralized database to a communications address from a request for verification entry in a verification queue of the decentralized database. A second request for verification including the communications address and a user-signed secret message may be received. The user-signed secret message may be verified using a public key from the request for verification entry in the verification queue. The communications address and public key may be written to a verified database of the decentralized database when verifying the user-signed secret message causes a number of user-signed secret messages received in requests for verification with the communications address and successfully verified to meet a threshold number.

公开(公告)号：US12026986B2

公开(公告)日：2024-07-02

申请号：US17159606

申请日：2021-01-27

Applicant: DENSO CORPORATION

Inventor： Tomoya Ogawa ,  Yoshitaka Ozaki ,  Yasufumi Iino

IPC: G07C5/00 ,  G06F16/17 ,  G06F16/18 ,  G07C5/08

CPC classification number: G07C5/008 ,  G06F16/1734 ,  G06F16/1805 ,  G07C5/085

Abstract: A center device includes a database storing a plurality of information items regarding a vehicle. The center device identifies a vehicle state by integrating the plurality of information items stored in the database. The center device generates visualization information to be displayed by a display device from an identification result of the vehicle state. The center device transmits the visualization information to the display device.