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    • 3. 发明授权
    • Location updates for a distributed data store
    • 分布式数据存储的位置更新
    • US08484417B2
    • 2013-07-09
    • US13337093
    • 2011-12-24
    • Lu XunHua-Jun ZengMuralidhar KrishnaprasadRadhakrishnan SrikanthAnkur AgrawalBalachandar Pavadaisamy
    • Lu XunHua-Jun ZengMuralidhar KrishnaprasadRadhakrishnan SrikanthAnkur AgrawalBalachandar Pavadaisamy
    • G06F13/00G06F13/28
    • G06F17/30949G06F12/0813
    • Version indicators within an existing range can be associated with a data partition in a distributed data store. A partition reconfiguration can be associated with one of multiple partitions in the data store, and a new version indicator that is outside the existing range can be assigned to the reconfigured partition. Additionally, a broadcast message can be sent to multiple nodes, which can include storage nodes and/or client nodes that are configured to communicate with storage nodes to access data in a distributed data store. The broadcast message can include updated location information for data in the data store. In addition, a response message can be sent to a requesting node of the multiple nodes in response to receiving from that node a message that requests updated location information for the data. The response message can include the requested updated location information.
    • 现有范围内的版本指示器可以与分布式数据存储中的数据分区关联。 分区重新配置可以与数据存储中的多个分区中的一个相关联,并且可以将配置在现有范围之外的新版本指示符分配给重新配置的分区。 另外,广播消息可以被发送到多个节点,其可以包括被配置为与存储节点进行通信以访问分布式数据存储中的数据的存储节点和/或客户端节点。 广播消息可以包括用于数据存储中的数据的更新的位置信息。 此外,响应于从该节点接收到请求数据的更新的位置信息的消息,响应消息可被发送到多个节点的请求节点。 响应消息可以包括所请求的更新位置信息。
    • 5. 发明授权
    • Storing state of distributed architecture in external store
    • 将分布式架构的状态存储在外部存储中
    • US08307085B2
    • 2012-11-06
    • US12724422
    • 2010-03-16
    • Rishi Rakesh SinhaLu Xun
    • Rishi Rakesh SinhaLu Xun
    • G06F15/16
    • G06F17/30566
    • Architecture that applies to a collection of nodes (e.g., a federation) and manages membership of the nodes to the collection via an external datastore. The storage of node state and collection state is stored in the external and highly available datastore. New nodes can now join the collection through the external store. The machines (nodes) in the collection create a lease with the external store that allows the external store to maintain precise knowledge of the set of machines alive in the collection. The external store thus allows the new machines to join the collection while ensuring that there exists only one ring in the collection. In other words, the disclosed architecture protocol ensures that any given point of time there is just one ring for the collection. Moreover, this can be in addition to a current join protocol, which ensures that consistent routing is available.
    • 适用于节点集合(例如,联合)并通过外部数据存储管理节点的集合的架构。 节点状态和收集状态的存储存储在外部和高可用性的数据存储中。 新节点现在可以通过外部存储来加入集合。 集合中的机器(节点)与外部存储创建租约,允许外部存储器保持集合中存在的一组机器的精确知识。 因此,外部存储允许新机器加入集合,同时确保集合中只有一个环。 换句话说,所公开的架构协议确保了任何给定的时间点只有一个环用于集合。 此外,这可以是当前的连接协议之外,这确保了一致的路由可用。
    • 7. 发明申请
    • DATA CONSISTENCY WITHIN A FEDERATION INFRASTRUCTURE
    • 数据一致性在联合基础设施中
    • US20120036237A1
    • 2012-02-09
    • US13221635
    • 2011-08-30
    • Richard L. HashaLu XunGopala Krishna R. KakivayaDahlia Malkhi
    • Richard L. HashaLu XunGopala Krishna R. KakivayaDahlia Malkhi
    • G06F15/177
    • H04L67/1095G06F11/1425G06F17/30215G06F17/30578H04L67/104H04L67/1046
    • A primary node is elected from among a plurality of nodes in a replica set of nodes. The primary node accepts and processes client data access requests. The replica set includes the primary node and other secondary nodes. The primary node receives client data access requests and assigns a data sequence number to each client data access request that mutates state in the order the client data access requests are received. The data sequence numbers include a linearized processing order that is followed by each of the nodes in the replica set. The primary node sends the mutating client data access requests including any corresponding data sequence numbers to the secondary nodes. The primary node receives, from a threshold number of secondary nodes, an acknowledgement indicating reception of the client data access request. The primary node commits the data mutating access request.
    • 在节点的副本集合中的多个节点中选择主节点。 主节点接受并处理客户端数据访问请求。 副本集包括主节点和其他辅助节点。 主节点接收客户端数据访问请求,并为每个客户端数据访问请求分配一个数据序列号,该请求按接收到客户端数据访问请求的顺序进行突变。 数据序列号包括复制集合中每个节点之后的线性化处理顺序。 主节点向次要节点发送包括任何对应的数据序列号的变化客户端数据访问请求。 主节点从阈值数量的次要节点接收到指示接收客户端数据访问请求的确认。 主节点提交数据突变访问请求。
    • 10. 发明申请
    • MAINTAINING CONSISTENCY WITHIN A FEDERATION INFRASTRUCTURE
    • 维持联合基础设施的一致性
    • US20080288659A1
    • 2008-11-20
    • US11936589
    • 2007-11-07
    • Richard L. HashaLu XunGopala Krishna R. KakivayaDahlia Malkhi
    • Richard L. HashaLu XunGopala Krishna R. KakivayaDahlia Malkhi
    • G06F15/173
    • H04L67/1095G06F11/1425G06F16/1844G06F16/273H04L67/104H04L67/1046
    • The present invention extends to methods, systems, and computer program products for a joining node to join a ring of nodes within a rendezvous federation. Embodiments include detecting a neighborhood of nodes on the ring of nodes. The joining node indicates its intent to take id-space ownership for a portion of the id-space between the joining node and a selected immediately adjacent node. The joining node indicates an intent to monitor the selected node. The joining node receives three indications, the first indicating acceptance of the joining node's intent to take id-space ownership for a portion of the id-space between the joining node and the selected node, the second indicating acceptance of the joining node's intent to monitor the selected node, the third indicating the first selected node's intent to monitor the joining node. The joining node indicates acceptance of the selected node's intent to monitor the joining node.
    • 本发明扩展到用于加入节点加入会合联盟内的节点环的方法,系统和计算机程序产品。 实施例包括检测节点环上的节点的邻域。 加入节点表示意图为加入节点和所选择的紧邻节点之间的id空间的一部分获取id空间所有权。 加入节点指示监视所选节点的意图。 加入节点接收三个指示,第一个指示加入节点意图对加入节点和所选节点之间的id空间的一部分采用id-space所有权的意图,第二个指示接收加入节点监视的意图 所选择的节点,第三个指示第一选择节点意图监视加入节点。 加入节点表示接受所选节点监视加入节点的意图。