公开(公告)号：US08315977B2

公开(公告)日：2012-11-20

申请号：US12710231

申请日：2010-02-22

Applicant: Siddharth Anand ,  Naresh Gopalani ,  Greg Kim ,  Neil Hunt ,  Santosh R. Rau

Inventor： Siddharth Anand ,  Naresh Gopalani ,  Greg Kim ,  Neil Hunt ,  Santosh R. Rau

IPC: G06F17/30

CPC classification number: G06F17/30578 ,  G11B27/002

Abstract: Methods, systems, and articles for simultaneously maintaining copies of data in a data center and a cloud computing environment providing network based services. Synchronizing applications monitor modifications to data records made in the data center and the cloud computing environment. The synchronizing applications are also configured to convert modified records from the data center into a format compatible with databases in the cloud computing environment prior to updating the databases in the cloud computing environment, and vice versa.

Abstract translation: 用于同时维护数据中心和云计算环境中的数据副本的方法，系统和文章，从而提供基于网络的服务。 同步应用程序监视对数据中心和云计算环境中所做数据记录的修改。 同步应用程序还被配置为在云计算环境中更新数据库之前将修改后的记录从数据中心转换为与云计算环境中的数据库兼容的格式，反之亦然。

公开(公告)号：US09613104B2

公开(公告)日：2017-04-04

申请号：US13399467

申请日：2012-02-17

Applicant: Charles Smith ,  Jeffrey Magnusson ,  Siddharth Anand

Inventor： Charles Smith ,  Jeffrey Magnusson ,  Siddharth Anand

IPC: G06F7/00 ,  G06F17/30 ,  G06F11/14 ,  G06F11/16 ,  G06F11/20

CPC classification number: G06F11/1446 ,  G06F11/1662 ,  G06F11/2094 ,  G06F17/30348 ,  G06F17/30368 ,  G06F17/30548 ,  G06F17/30551 ,  G06F2201/80 ,  G06F2201/82 ,  G06F2201/835 ,  G06F2201/84

Abstract: A method and system for building a point-in-time snapshot of an eventually-consistent data store. The data store includes key-value pairs stored on a plurality of storage nodes. In one embodiment, the data store is implemented as an Apache® Cassandra database running in the “cloud.” The data store includes a journaling mechanism that stores journals (i.e., inconsistent snapshots) of the data store on each node at various intervals. In Cassandra, these snapshots are sorted string tables that may be copied to a back-up storage location. A cluster of processing nodes may retrieve and resolve the inconsistent snapshots to generate a point-in-time snapshot of the data store corresponding to a lagging consistency point. In addition, the point-in-time snapshot may be updated as any new inconsistent snapshots are generated by the data store such that the lagging consistency point associated with the updated point-in-time snapshot is more recent.

公开(公告)号：US20130218840A1

公开(公告)日：2013-08-22

申请号：US13399467

申请日：2012-02-17

Applicant: Charles SMITH ,  Jeffrey Magnusson ,  Siddharth Anand

Inventor： Charles SMITH ,  Jeffrey Magnusson ,  Siddharth Anand

IPC: G06F7/00

CPC classification number: G06F11/1446 ,  G06F11/1662 ,  G06F11/2094 ,  G06F17/30348 ,  G06F17/30368 ,  G06F17/30548 ,  G06F17/30551 ,  G06F2201/80 ,  G06F2201/82 ,  G06F2201/835 ,  G06F2201/84

Abstract: A method and system for building a point-in-time snapshot of an eventually-consistent data store. The data store includes key-value pairs stored on a plurality of storage nodes. In one embodiment, the data store is implemented as an Apache® Cassandra database running in the “cloud.” The data store includes a journaling mechanism that stores journals (i.e., inconsistent snapshots) of the data store on each node at various intervals. In Cassandra, these snapshots are sorted string tables that may be copied to a back-up storage location. A cluster of processing nodes may retrieve and resolve the inconsistent snapshots to generate a point-in-time snapshot of the data store corresponding to a lagging consistency point. In addition, the point-in-time snapshot may be updated as any new inconsistent snapshots are generated by the data store such that the lagging consistency point associated with the updated point-in-time snapshot is more recent.

Abstract translation: 用于构建最终一致数据存储的时间点快照的方法和系统。 数据存储包括存储在多个存储节点上的键值对。 在一个实施例中，数据存储被实现为在“云”中运行的Apache Cassandra数据库。 数据存储包括日志机制，其以各种间隔存储每个节点上的数据存储的期刊（即，不一致的快照）。 在Cassandra中，这些快照是可以复制到备份存储位置的排序字符串表。 一组处理节点可以检索和解析不一致的快照，以生成对应于滞后一致性点的数据存储的时间点。 此外，随着数据存储器生成新的不一致的快照，可以更新时刻快照，使得与更新的时间点相关的滞后一致性点更近。

公开(公告)号：US20110208695A1

公开(公告)日：2011-08-25

申请号：US12710231

申请日：2010-02-22

Applicant: Siddharth Anand ,  Naresh Gopalani ,  Greg Kim ,  Neil Hunt ,  Santosh R. Rau

Inventor： Siddharth Anand ,  Naresh Gopalani ,  Greg Kim ,  Neil Hunt ,  Santosh R. Rau

IPC: G06F17/30

CPC classification number: G06F17/30578 ,  G11B27/002

Abstract: Methods, systems, and articles for simultaneously maintaining copies of data in a data center and a cloud computing environment providing network based services. Synchronizing applications monitor modifications to data records made in the data center and the cloud computing environment. The synchronizing applications are also configured to convert modified records from the data center into a format compatible with databases in the cloud computing environment prior to updating the databases in the cloud computing environment, and vice versa.

Abstract translation: 用于同时维护数据中心和云计算环境中的数据副本的方法，系统和文章，从而提供基于网络的服务。 同步应用程序监视对数据中心和云计算环境中所做数据记录的修改。 同步应用程序还被配置为在云计算环境中更新数据库之前将修改后的记录从数据中心转换为与云计算环境中的数据库兼容的格式，反之亦然。