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    SELF-DESCRIBING DATA BLOCKS OF A MINIMUM ATOMIC WRITE SIZE FOR A DATA STORE
    4.
    发明申请
    SELF-DESCRIBING DATA BLOCKS OF A MINIMUM ATOMIC WRITE SIZE FOR A DATA STORE 审中-公开
    自动描述用于数据存储的最小原子写入大小的数据块

    公开(公告)号：US20150261610A1

    公开(公告)日：2015-09-17

    申请号：US14727644

    申请日：2015-06-01

    Applicant: Amazon Technologies, Inc.

    Inventor： ANURAG WINDLASS GUPTA ,  JAMES MCCLELLAN COREY ,  YAN VALERIE LESHINSKY ,  PRADEEP JNANA MADHAVARAPU ,  SAMUEL JAMES MCKELVIE

    IPC: G06F11/10 ,  G06F3/06

    CPC classification number: G06F11/0793 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/0709 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/079 ,  G06F11/10 ,  G06F11/1004 ,  G06F11/1076

    Abstract: Self-describing data blocks of a minimum atomic write size may be stored for a data store. Data may be received for storage in a data block of a plurality of data blocks at a persistent storage device that are equivalent to a minimum atomic write size for the persistent storage device. Metadata may be generated for the data that includes an error detection code which is generated for the data and the metadata together. The data and the metadata are sent to the persistent storage device to store together in the data block. An individual atomic write operation may write together the data and the metadata in the data block. When accessed, the error detection code is applicable to detect errors. The metadata may also be applicable to determine whether the data is stored for a currently assigned purpose or a previously assigned purpose of the data block.

    Abstract translation: 可以为数据存储器存储最小原子写入大小的自描述数据块。 可以接收数据以存储在永久存储设备处的多个数据块的数据块中，其等同于持久存储设备的最小原子写入大小。 可以为包括为数据和元数据生成的错误检测码的数据生成元数据。 将数据和元数据发送到持久存储设备，以一起存储在数据块中。 单独的原子写入操作可以将数据和元数据一起写入数据块中。 访问时，错误检测码适用于检测错误。 元数据还可以适用于确定数据是否存储在当前分配的目的或数据块的先前分配的目的上。

    SELF-DESCRIBING DATA BLOCKS STORED WITH ATOMIC WRITE
    6.
    发明申请
    SELF-DESCRIBING DATA BLOCKS STORED WITH ATOMIC WRITE 审中-公开
    自描述数据块存储与原子写入

    公开(公告)号：US20170031749A1

    公开(公告)日：2017-02-02

    申请号：US15289907

    申请日：2016-10-10

    Applicant: Amazon Technologies, Inc.

    Inventor： ANURAG WINDLASS GUPTA ,  JAMES MCCLELLAN COREY ,  YAN VALERIE LESHINSKY ,  PRADEEP JNANA MADHAVARAPU ,  SAMUEL JAMES MCKELVIE

    IPC: G06F11/07 ,  G06F3/06

    CPC classification number: G06F11/0793 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/067 ,  G06F3/0689 ,  G06F11/0709 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/079 ,  G06F11/10 ,  G06F11/1004 ,  G06F11/1076

    Abstract: Self-describing data blocks of a minimum atomic write size may be stored for a data store. Data may be received for storage in a data block of a plurality of data blocks at a persistent storage device that are equivalent to a minimum atomic write size for the persistent storage device. Metadata may be generated for the data that includes an error detection code which is generated for the data and the metadata together. The data and the metadata are sent to the persistent storage to device to store together in the data block. An individual atomic write operation may write together the data and the metadata in the data block. When accessed, the error detection code is applicable to detect errors. The metadata may also be applicable to determine whether the data is stored for a currently assigned purpose or a previously assigned purpose of the data block.

    Abstract translation: 可以为数据存储器存储最小原子写入大小的自描述数据块。 可以接收数据以存储在永久存储设备处的多个数据块的数据块中，其等同于持久存储设备的最小原子写入大小。 可以为包括为数据和元数据生成的错误检测码的数据生成元数据。 数据和元数据被发送到持久存储器到设备以一起存储在数据块中。 单独的原子写入操作可以将数据和元数据一起写入数据块中。 访问时，错误检测码适用于检测错误。 元数据还可以适用于确定数据是否存储在当前分配的目的或数据块的先前分配的目的上。

    PLACE SNAPSHOTS
    7.
    发明申请
    PLACE SNAPSHOTS 审中-公开
    放置快照

    公开(公告)号：US20140279900A1

    公开(公告)日：2014-09-18

    申请号：US14201512

    申请日：2014-03-07

    Applicant: Amazon Technologies, Inc.

    Inventor： ANURAG WINDLASS GUPTA ,  PRADEEP JNANA MADHAVARAPU ,  SAMUEL JAMES MCKELVIE ,  NEAL FACHAN

    IPC: G06F17/30

    CPC classification number: G06F17/30309

    Abstract: A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. A snapshot may be generated that is usable to read the data as of a state corresponding to the snapshot. Generating the snapshot may include generating metadata that is indicative of a particular log identifier of a particular one of the log records. Generating the snapshot may be performed without additional reading, copying, or writing of the data.

    Abstract translation: 数据库系统可以在分布式存储系统上维护多个日志记录。 多个日志记录中的每一个可以与对数据页的相应改变相关联。 可以生成可用于读取与快照相对应的状态的数据的快照。 生成快照可以包括生成表示特定日志记录的特定日志标识符的元数据。 可以在不附加读取，复制或写入数据的情况下执行生成快照。

    OPTIMIZED LOG STORAGE FOR ASYNCHRONOUS LOG UPDATES
    8.
    发明申请
    OPTIMIZED LOG STORAGE FOR ASYNCHRONOUS LOG UPDATES 审中-公开
    优化日志存储用于异步日志更新

    公开(公告)号：US20160110408A1

    公开(公告)日：2016-04-21

    申请号：US14981540

    申请日：2015-12-28

    Applicant: Amazon Technologies, Inc.

    Inventor： PRADEEP JNANA MADHAVARAPU ,  RAMAN MITTAL ,  BENJAMIN TOBLER ,  JAMES MCCLELLAN COREY ,  YAN VALERIE LESHINSKY ,  SAMUEL JAMES MCKELVIE ,  ANURAG WINDLASS GUPTA

    IPC: G06F17/30

    CPC classification number: G06F16/2365 ,  G06F16/2358 ,  G06F16/273

    Abstract: A log-structured data store may implement optimized log storage for asynchronous log updates. In some embodiments, log records may be received indicating updates to data stored for a storage client and indicating positions in a log record sequence. The log records themselves may not be guaranteed to be received according to the log record sequence. Received log records may be stored in a hot log portion of a block-based storage device according to an order in which they are received. Log records in the hot log portion may then be identified to be moved to a cold log portion of the block-based storage device in order to complete a next portion of the log record sequence. Log records may be modified, such as compressed, or coalesced, before being stored together in a data block of the cold log portion according to the log record sequence.

    Abstract translation: 日志结构化数据存储可以实现用于异步日志更新的优化日志存储。 在一些实施例中，可以接收指示对存储用于存储客户端的数据的更新并指示日志记录序列中的位置的日志记录。 可能无法保证根据日志记录顺序接收日志记录。 接收到的日志记录可以根据它们被接收的顺序存储在基于块的存储设备的热日志部分中。 然后可以将热日志部分中的日志记录识别为移动到基于块的存储设备的冷日志部分，以便完成日志记录序列的下一部分。 可以根据日志记录序列将日志记录修改，例如压缩或合并，然后一起存储在冷日志部分的数据块中。

    MANAGING CONTINGENCY CAPACITY OF POOLED RESOURCES IN MULTIPLE AVAILABILITY ZONES
    9.
    发明申请
    MANAGING CONTINGENCY CAPACITY OF POOLED RESOURCES IN MULTIPLE AVAILABILITY ZONES 审中-公开
    管理多个可用地区中的重点资源的能力

    公开(公告)号：US20160085643A1

    公开(公告)日：2016-03-24

    申请号：US14961775

    申请日：2015-12-07

    Applicant: Amazon Technologies, Inc.

    Inventor： GRANT ALEXANDER MACDONALD MCALISTER ,  SAMUEL JAMES MCKELVIE ,  ANURAG WINDLASS GUPTA

    IPC: G06F11/20 ,  H04L12/24

    CPC classification number: G06F11/203 ,  G06F11/1435 ,  G06F11/1471 ,  G06F11/2094 ,  G06F11/2097 ,  G06F17/30283 ,  G06F2201/80 ,  G06F2201/805 ,  G06F2201/815 ,  G06Q40/04 ,  H04L41/0668 ,  H04L41/069 ,  H04L67/02

    Abstract: A network-based services provider may reserve and provision primary resource instance capacity for a given service (e.g., enough compute instances, storage instances, or other virtual resource instances to implement the service) in one or more availability zones, and may designate contingency resource instance capacity for the service in another availability zone (without provisioning or reserving the contingency instances for the exclusive use of the service). For example, the service provider may provision resource instance(s) for a database engine head node in one availability zone and designate resource instance capacity for another database engine head node in another availability zone without instantiating the other database engine head node. While the service operates as expected using the primary resource instance capacity, the contingency resource capacity may be leased to other entities on a spot market. Leases for contingency instance capacity may be revoked when needed for the given service (e.g., during failover).

    Abstract translation: 基于网络的服务提供商可以在一个或多个可用性区域中为给定服务（例如，足够的计算实例，存储实例或其他虚拟资源实例）预留和提供主资源实例容量，并且可以指定应急资源 另一个可用区域中的服务的实例容量（不提供或预留用于独占使用服务的应急实例）。 例如，服务提供商可以在一个可用性区域中为数据库引擎头节点提供资源实例，并且在另一个可用区域内为另一个数据库引擎头节点指定资源实例容量，而不实例化其他数据库引擎头节点。 虽然服务使用主要资源实例容量预期运行，但应急资源能力可以在现货市场上租赁给其他实体。 对于特定服务（例如，在故障转移期间）需要时，可能会撤销应急实例容量的租约。

    SELECTIVELY PERSISTING APPLICATION PROGRAM DATA FROM SYSTEM MEMORY TO NON-VOLATILE DATA STORAGE
    10.
    发明申请
    SELECTIVELY PERSISTING APPLICATION PROGRAM DATA FROM SYSTEM MEMORY TO NON-VOLATILE DATA STORAGE 审中-公开
    将系统内存中的应用程序数据选择性地存储到非易失性数据存储

    公开(公告)号：US20160077930A1

    公开(公告)日：2016-03-17

    申请号：US14949644

    申请日：2015-11-23

    Applicant: Amazon Technologies, Inc.

    Inventor： SAMUEL JAMES MCKELVIE ,  YAN VALERIE LESHINSKY ,  IAN P. NOWLAND ,  DARIN LEE FRINK ,  ANURAG WINDLASS GUPTA ,  ADAM DOUGLAS MORLEY ,  CHRISTOPHER NATHAN WATSON ,  MICHAEL DAVID MARR

    IPC: G06F11/14 ,  G06F3/06

    CPC classification number: G06F11/1469 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0688 ,  G06F11/14 ,  G06F11/1402 ,  G06F11/1441 ,  G06F11/1451 ,  G06F12/0246 ,  G06F2201/84

    Abstract: Application program data stored in system memory may be selectively persisted. An indication may be provided to an application program that an application data object or a range of application data stored in system memory may be treated as persistent. Data backup may be enabled for the application data object or range of application data in the event of a system failure, copying the application data object or range of application data from system memory to non-volatile data storage. Upon recovery from a system failure, further data backup for the application data object or the range of application data may be disabled. In some embodiments, at least some of the application data object or range of application data may be recovered for the application program to access. Data backup for the application data object or the range of application data may also be re-enabled.

    Abstract translation: 可以选择性地保持存储在系统存储器中的应用程序数据。 可以向应用程序提供可以将存储在系统存储器中的应用数据对象或应用数据的范围视为持久性的指示。 在系统故障的情况下，应用程序数据对象或应用程序数据范围可能启用数据备份，将应用程序数据对象或应用程序数据范围从系统内存复制到非易失性数据存储。 从系统故障恢复后，可能会禁用应用程序数据对象的进一步数据备份或应用程序数据范围。 在一些实施例中，可以为应用程序访问应用数据对象或应用数据范围中的至少一些。 还可以重新启用应用程序数据对象的数据备份或应用程序数据的范围。

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