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1. 发明申请

WO2015149885A1 METHOD FOR QUERYING AND UPDATING ENTRIES IN A DATA BASE 审中-公开
标题翻译：在数据库中查询和更新条目的方法
公开(公告)号：WO2015149885A1
公开(公告)日：2015-10-08
申请号：PCT/EP2014/075745
申请日：2014-11-27
申请人： HUAWEI TECHNOLOGIES CO.,LTD , LEVY, Eliezer , KOSSMANN, Donald , BRAUN, Lucas , ETTER, Thomas , GASPARIS, Georgios , WIDMER, Daniel , AVITZUR, Aharon , KAUFMANN, Martin , ILIOPOULOS, Antonios
发明人： LEVY, Eliezer , KOSSMANN, Donald , BRAUN, Lucas , ETTER, Thomas , GASPARIS, Georgios , WIDMER, Daniel , AVITZUR, Aharon , KAUFMANN, Martin , ILIOPOULOS, Antonios
IPC分类号： G06F17/30
CPC分类号： G06F17/30569 , G06F17/3033 , G06F17/30345 , G06F17/30368 , G06F17/30442 , G06F17/30477 , G06F17/30598
摘要： Method for querying and updating entries in a data base The invention relates to a method for querying and updating entries in a data base, the data base comprising a main data structure for storing data base entries and a delta data structure for storing new entries, the method comprising the following steps: receiving (101) a plurality of data base queries, aggregating (103) a received plurality of data base queries to obtain a batch of data base queries, performing (105) a shared scan of the main data structure with the batch of data base queries, wherein the data base entries in the main data structure are queried with respect to each data base query in the batch of data base queries, after the step of performing (105) the shared scan, merging (107) the main data structure with the delta data structure to update the main data structure with the received new entries.
摘要翻译：用于查询和更新数据库中的条目的方法技术领域本发明涉及一种用于查询和更新数据库中的条目的方法，所述数据库包括用于存储数据库条目的主数据结构和用于存储新条目的增量数据结构，方法包括以下步骤：接收（101）多个数据库查询，聚合（103）所接收的多个数据库查询以获得一批数据库查询，执行（105）主数据结构的共享扫描，该批数据库查询在执行（105）共享扫描，合并（107）的步骤之后，针对数据库批量查询中的每个数据库查询来查询主数据结构中的数据库条目，主数据结构与delta数据结构一起更新主数据结构与收到的新条目。

2. 发明申请

WO2016180504A1 SYSTEM AND METHOD FOR CREATING SELECTIVE SNAPSHOTS OF A DATABASE 审中-公开
标题翻译：创建数据库的选择性快照的系统和方法
公开(公告)号：WO2016180504A1
公开(公告)日：2016-11-17
申请号：PCT/EP2015/075405
申请日：2015-11-02
申请人： HUAWEI TECHNOLOGIES CO., LTD. , LEVY, Eliezer , ILIOPOULOS, Antonios , GOIKHMAN, Shay , GOLD, Israel
发明人： LEVY, Eliezer , ILIOPOULOS, Antonios , GOIKHMAN, Shay , GOLD, Israel
IPC分类号： G06F17/30 , G06F12/10 , G06F12/08
CPC分类号： G06F11/1451 , G06F11/1407 , G06F12/1009 , G06F17/30348 , G06F17/30377 , G06F17/30592 , G06F2201/80 , G06F2201/84 , G06F2212/1024
摘要： There is provided a system for creating selective snapshots of a database that is stored as one or more segments, wherein a segment comprises one or more memory pages. The system comprises: - a determining unit for determining whether a snapshot process is configured to access a selected segment of the one or more segments, - an assigning unit for assigning a positive mapping status to an accessed segment for which the determining unit has determined that it is accessed by the snapshot process and for assigning a negative mapping status to a non-accessed segment for which the determining unit has determined that it is not accessed by the snapshot process, and - a snapshot unit for creating a snapshot, wherein creating the snapshot comprises a step of forking the snapshot process with an address space that comprises a subset of the one or more segments, wherein a non-mapped segment that has been assigned a negative mapping status is not mapped in the address space.
摘要翻译：提供了一种用于创建存储为一个或多个段的数据库的选择性快照的系统，其中段包括一个或多个存储器页。该系统包括： - 确定单元，用于确定快照进程是否被配置为访问所述一个或多个段的所选择的段; - 分配单元，用于将正的映射状态分配给所述确定单元确定的所访问段由快照进程访问并且将负映射状态分配给确定单元已经确定其不被快照进程访问的非访问段，以及 - 用于创建快照的快照单元，其中创建快照快照包括用包含所述一个或多个段的子集的地址空间来划分快照过程的步骤，其中已被分配了否定映射状态的非映射段未被映射到地址空间中。

3. 发明申请

WO2016162338A1 LOAD BALANCING FOR LARGE IN-MEMORY DATABASES 审中-公开
标题翻译：负载平衡大内存数据库
公开(公告)号：WO2016162338A1
公开(公告)日：2016-10-13
申请号：PCT/EP2016/057438
申请日：2016-04-05
申请人： HUAWEI TECHNOLOGIES CO., LTD. , GOIKHMAN, Shay , ILIOPOULOS, Antonios , LEVY, Eliezer
发明人： GOIKHMAN, Shay , ILIOPOULOS, Antonios , LEVY, Eliezer
IPC分类号： G06F9/50 , G06F3/06
CPC分类号： G06F17/30598 , G06F9/5016 , G06F17/3048 , G06F17/3053 , Y02D10/22
摘要： A data management device (10) is provided, comprising a control module (100) and a storage module (1 10), wherein the storage module (1 10) is configured to store a plurality of data sets in a plurality of data set groups such that the plurality of data sets is assigned to the plurality of data set groups such that every data set group comprises at least one data set and every data set is stored in one data set group only and wherein the control module (100) is configured to assign an exclusive execution context to each data set group and to estimate a number of data set requests for every data set. The control module (100) is further configured to determine data sets for every data set group based on the estimated number of data set requests and to reassign the data sets to the data set groups such that the estimated number of data set requests in a data set group is less or equal to a predetermined number of data set requests for at least one exclusive execution context which is assigned to one of the plurality of data set groups. Thus, skew workload of the data set groups and the assigned exclusive execution contexts can be avoided.
摘要翻译：提供了一种数据管理装置（10），包括控制模块（100）和存储模块（110），其中所述存储模块（110）被配置为在多个数据组组中存储多个数据集使得所述多个数据集被分配给所述多个数据集组，使得每个数据集组包括至少一个数据集，并且每个数据集仅存储在一个数据集组中，并且其中所述控制模块（100）被配置将独占执行上下文分配给每个数据集组并估计每个数据集的数据集请求数。控制模块（100）还被配置为基于所估计的数据集请求数量来确定每个数据集组的数据集，并且将数据集重新分配给数据集组，使得数据中的数据集请求的估计数量集合组小于或等于分配给多个数据集组之一的至少一个排他执行上下文的预定数量的数据集请求。因此，可以避免数据集组和所分配的独占执行上下文的偏斜工作负载。

4. 发明申请

WO2019024994A1 SYSTEM, METHOD AND COMPUTER PROGRAM FOR VIRTUAL MACHINE RESOURCE ALLOCATION 审中-公开
公开(公告)号：WO2019024994A1
公开(公告)日：2019-02-07
申请号：PCT/EP2017/069579
申请日：2017-08-02
申请人： HUAWEI TECHNOLOGIES CO., LTD. , ILIOPOULOS, Antonios
发明人： ILIOPOULOS, Antonios , VEXLER, Vladi
IPC分类号： G06F9/50
摘要： According to a first aspect a system is provided. The system comprises a processor and a memory, resources selected from processing resources and memory resources, and a computer program stored in the memory. The computer program comprises two or more virtual machines and a hypervisor having access to the resources. When the computer program is executed in the processor, any one of the two or more virtual machines is configured to request additional resources by sending a resource request to the hypervisor. The hypervisor receives the resource request from the requesting virtual machine and check for available unallocated resources. If unallocated resources are available, the hypervisor allocates at least part of these resources to the requesting virtual machine. If not available, the hypervisor checks for allocated resources that can be released by any of the virtual machines that are not the requesting virtual machine, and reallocate these resources to the requesting virtual machine.

5. 发明申请

WO2016162337A1 REDO-LOGGING FOR PARTITIONED IN-MEMORY DATASETS 审中-公开
标题翻译：重新记录分组的内存数据
公开(公告)号：WO2016162337A1
公开(公告)日：2016-10-13
申请号：PCT/EP2016/057437
申请日：2016-04-05
申请人： HUAWEI TECHNOLOGIES CO., LTD. , VEERARAGHAVAN, Vinoth , SIVAKUMAR, Kalyan , ILIOPOULOS, Antonios , GOIKHMAN, Shay
发明人： VEERARAGHAVAN, Vinoth , SIVAKUMAR, Kalyan , ILIOPOULOS, Antonios , GOIKHMAN, Shay
IPC分类号： G06F11/14
CPC分类号： G06F3/065 , G06F3/0619 , G06F3/0656 , G06F3/0659 , G06F3/0683 , G06F11/1438 , G06F11/1471 , G06F2201/80 , G06F2201/805 , G06F2201/82
摘要： A data storage device (10) is provided, comprising a control module (100) a first storage module (110) a second storage module (120) a third storage module (125) and a buffer (130). The first storage module (110) is configured to store a plurality of data sets. The control module (100) is configured to receive requests for operations to be carried out on the plurality of data sets in the first storage module (110), to execute the received requests and to copy the plurality of data sets in the first storage module (120) to the second storage module (120) at a predetermined time. The control module is further configured to add the received requests for operations to the buffer (130) and to persist the buffer (130) to the third storage module (125) by a synchronization means. The data storage device is configured to initialize the plurality of data sets in the first storage module (110) from the second storage module (120) and to carry out operations corresponding to the requests from the third storage module (125) in a recovery scenario.
摘要翻译：提供了一种数据存储设备（10），包括控制模块（100），第一存储模块（110），第二存储模块（120），第三存储模块（125）和缓冲器（130）。第一存储模块（110）被配置为存储多个数据集。所述控制模块（100）被配置为接收对所述第一存储模块（110）中的所述多个数据集执行的操作的请求，以执行所接收的请求并将所述多个数据集复制到所述第一存储模块（120）在预定时间到达所述第二存储模块（120）。控制模块还被配置为将所接收的操作请求添加到缓冲器（130），并且通过同步装置将缓冲器（130）持续到第三存储模块（125）。数据存储装置被配置为从第二存储模块（120）初始化第一存储模块（110）中的多个数据集，并且在恢复场景中执行与来自第三存储模块（125）的请求相对应的操作。

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