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1. 发明申请

US20120179723A1 DATA REPLICATION AND FAILURE RECOVERY METHOD FOR DISTRIBUTED KEY-VALUE STORE 有权
标题翻译：数据复制和故障恢复方法用于分销的键值存储
公开(公告)号：US20120179723A1
公开(公告)日：2012-07-12
申请号：US13004585
申请日：2011-01-11
申请人： Wujuan LIN , Kenta SHIGA
发明人： Wujuan LIN , Kenta SHIGA
IPC分类号： G06F17/30
CPC分类号： G06F11/3433 , G06F11/2094 , G06F2201/81 , G06F2201/88
摘要： A distributed storage system employs a Key-Value Store to dynamically change a table layout scheme based on user access patterns. The system can be used as a basic architecture to construct a distributed Key-Value Store to support both row-oriented and column-oriented table layout schemes, by using DHT (Distributed Hash Table) technology for high scalability.
摘要翻译：分布式存储系统采用键值存储来基于用户访问模式来动态地改变表格布局方案。通过使用DHT（分布式哈希表）技术实现高可扩展性，该系统可用作构建分布式键值存储的基本架构，以支持面向行和列的表格布局方案。

2. 发明授权

US08458299B2 Metadata management method for NAS global namespace design 失效
标题翻译： NAS全局命名空间设计的元数据管理方法
公开(公告)号：US08458299B2
公开(公告)日：2013-06-04
申请号：US12726337
申请日：2010-03-17
申请人： Wujuan Lin , Shoji Kodama , Naoki Utsunomiya , Hitoshi Kamei
发明人： Wujuan Lin , Shoji Kodama , Naoki Utsunomiya , Hitoshi Kamei
IPC分类号： G06F15/173
CPC分类号： G06F17/30197 , G06F3/0635 , G06F3/0667 , G06F3/067
摘要： A global namespace (GNS) is constructed across heterogeneous network-attached storage (NAS) devices by organizing metadata servers into a cluster layer having cluster nodes and a consistent hashing overlay layer having overlay nodes. The global namespace is distributed based on workload at the cluster and overlay nodes, and a portion of the GNS namespace may be migrated from one layer to the other. Cluster nodes may be added to the cluster layer, overlay nodes may be added to the consistent hashing overlay layer. Further, a cluster node may become an overlay node or an overlay node may become a cluster node. To access the global namespace, a request for namespace metadata managed by a cluster node is serviced by the cluster node, but if the requested namespace metadata have been migrated to the consistent hashing overlay layer, the cluster node will forward the request to the responsible overlay node for servicing.
摘要翻译：通过将元数据服务器组织到具有集群节点的集群层和具有覆盖节点的一致的散列覆盖层，跨异构网络连接存储（NAS）设备构建全局命名空间（GNS）。全局命名空间根据集群和覆盖节点的工作负载进行分布，一部分GNS命名空间可能会从一个层迁移到另一层。群集节点可以被添加到群集层，覆盖节点可以被添加到一致的散列覆盖层。此外，集群节点可以变为覆盖节点，或者覆盖节点可以成为集群节点。要访问全局命名空间，群集节点管理的命名空间元数据请求由群集节点服务，但是如果请求的命名空间元数据已迁移到一致的散列覆盖层，则群集节点将请求转发到负责的叠加层节点用于维修。

3. 发明申请

US20110231524A1 METADATA MANAGEMENT METHOD FOR NAS GLOBAL NAMESPACE DESIGN 失效
标题翻译： NAS全球名称设计的元数据管理方法
公开(公告)号：US20110231524A1
公开(公告)日：2011-09-22
申请号：US12726337
申请日：2010-03-17
申请人： Wujuan LIN , Shoji KODAMA , Naoki UTSUNOMIYA , Hitoshi KAMEI
发明人： Wujuan LIN , Shoji KODAMA , Naoki UTSUNOMIYA , Hitoshi KAMEI
IPC分类号： G06F15/177
CPC分类号： G06F17/30197 , G06F3/0635 , G06F3/0667 , G06F3/067
摘要： A global namespace (GNS) is constructed across heterogeneous network-attached storage (NAS) devices by organizing metadata servers into a cluster layer having cluster nodes and a consistent hashing overlay layer having overlay nodes. The global namespace is distributed based on workload at the cluster and overlay nodes, and a portion of the GNS namespace may be migrated from one layer to the other. Cluster nodes may be added to the cluster layer, overlay nodes may be added to the consistent hashing overlay layer. Further, a cluster node may become an overlay node or an overlay node may become a cluster node. To access the global namespace, a request for namespace metadata managed by a cluster node is serviced by the cluster node, but if the requested namespace metadata have been migrated to the consistent hashing overlay layer, the cluster node will forward the request to the responsible overlay node for servicing.
摘要翻译：通过将元数据服务器组织到具有集群节点的集群层和具有覆盖节点的一致的散列覆盖层，跨异构网络连接存储（NAS）设备构建全局命名空间（GNS）。全局命名空间根据集群和覆盖节点的工作负载进行分布，一部分GNS命名空间可能会从一个层迁移到另一层。群集节点可以被添加到群集层，覆盖节点可以被添加到一致的散列覆盖层。此外，集群节点可以变为覆盖节点，或者覆盖节点可以成为集群节点。要访问全局命名空间，群集节点管理的命名空间元数据请求由群集节点服务，但是如果请求的命名空间元数据已迁移到一致的散列覆盖层，则群集节点将请求转发到负责的叠加层节点用于维修。

4. 发明申请

US20130218934A1 METHOD FOR DIRECTORY ENTRIES SPLIT AND MERGE IN DISTRIBUTED FILE SYSTEM 审中-公开
标题翻译：分布式文件系统中的目录分割和合并的方法
公开(公告)号：US20130218934A1
公开(公告)日：2013-08-22
申请号：US13399657
申请日：2012-02-17
申请人： Wujuan LIN , Kenta SHIGA
发明人： Wujuan LIN , Kenta SHIGA
IPC分类号： G06F17/30
CPC分类号： G06F16/182
摘要： A distributed storage system has MDSs (metadata servers). Directories of file system namespace are distributed to the MDSs based on hash value of inode number of each directory. Each directory is managed by a master MDS. When a directory grows with a file creation rate greater than a preset split threshold, the master MDS constructs a consistent hashing overlay with one or more slave MDSs and splits directory entries of the directory to the consistent hashing overlay based on hash values of file names under the directory. The number of MDSs in the consistent hashing overlay is calculated based on the file creation rate. When the directory continues growing with a file creation rate that is greater than the preset split threshold, the master MDS adds a slave MDS into the consistent hashing overlay and splits directory entries to the consistent hashing overlay based on hash values of file names.
摘要翻译：分布式存储系统具有MDS（元数据服务器）。文件系统命名空间的目录基于每个目录的inode号的哈希值分发到MDS。每个目录由主MDS管理。当目录以大于预设分割阈值的文件创建速度增长时，主MDS将使用一个或多个从属MDS构建一致的散列叠加，并将目录的目录条目分解为基于文件名下的哈希值的一致散列重叠目录。基于文件创建速率计算一致哈希重叠中的MDS数量。当目录继续增长时，文件创建速率大于预设分割阈值时，主MDS会将一个从属MDS添加到一致的散列重叠中，并将目录条目分解为基于文件名的哈希值的一致的散列重叠。

5. 发明授权

US08874505B2 Data replication and failure recovery method for distributed key-value store 有权
标题翻译：分布式键值存储的数据复制和故障恢复方法
公开(公告)号：US08874505B2
公开(公告)日：2014-10-28
申请号：US13004585
申请日：2011-01-11
申请人： Wujuan Lin , Kenta Shiga
发明人： Wujuan Lin , Kenta Shiga
IPC分类号： G06F17/30 , G06F11/20 , G06F11/34
CPC分类号： G06F11/3433 , G06F11/2094 , G06F2201/81 , G06F2201/88
摘要： A distributed storage system employs a Key-Value Store to dynamically change a table layout scheme based on user access patterns. The system can be used as a basic architecture to construct a distributed Key-Value Store to support both row-oriented and column-oriented table layout schemes, by using DHT (Distributed Hash Table) technology for high scalability.
摘要翻译：分布式存储系统采用键值存储来基于用户访问模式来动态地改变表格布局方案。通过使用DHT（分布式哈希表）技术实现高可扩展性，该系统可用作构建分布式键值存储的基本架构，以支持面向行和列的表格布局方案。

6. 发明申请

US20130332608A1 LOAD BALANCING FOR DISTRIBUTED KEY-VALUE STORE 审中-公开
标题翻译：用于分销的键值存储的负载平衡
公开(公告)号：US20130332608A1
公开(公告)日：2013-12-12
申请号：US13489897
申请日：2012-06-06
申请人： Kenta SHIGA , Wujuan LIN
发明人： Kenta SHIGA , Wujuan LIN
IPC分类号： G06F15/173
CPC分类号： G06F9/5088
摘要： According to one embodiment of load balancing, a system comprises a plurality of nodes being configured to allow input/output (I/O) access to a plurality of data, each data being accessed as a value via a unique key which is associated with the value as a key-value pair, the data being distributed and stored among the plurality of nodes based on hush values of the keys. Each node includes an I/O module to record a number of I/O accesses to each key of a plurality of keys associated with the plurality of data as values, respectively, to form key-value pairs. If resource utilization of a node exceeds a preset threshold, then the node is an overloaded node, and the overloaded node migrates out a part of the key-value pairs in the overloaded node in order to reduce the resource utilization to a level below the preset threshold.
摘要翻译：根据负载平衡的一个实施例，系统包括被配置为允许对多个数据的输入/输出（I / O）访问的多个节点，每个数据通过与值作为键值对，基于密钥的静默值在多个节点之间分布和存储数据。每个节点包括I / O模块，用于分别将与多个数据相关联的多个密钥中的每个密钥的多个I / O访问记录为值以形成键值对。如果节点的资源利用率超过预设阈值，则节点是重载节点，并且重载节点迁移重载节点中的一部分密钥对对，以将资源利用率降低到低于预设值阈。

7. 发明授权

US08301654B2 Geographical distributed storage system based on hierarchical peer to peer architecture 有权
标题翻译：基于分层对等体系结构的地理分布式存储系统
公开(公告)号：US08301654B2
公开(公告)日：2012-10-30
申请号：US12391548
申请日：2009-02-24
申请人： Shoji Kodama , Wujuan Lin
发明人： Shoji Kodama , Wujuan Lin
IPC分类号： G06F17/30
CPC分类号： G06F17/30241 , H04L41/0893 , H04L41/12 , H04L45/02 , H04L67/104 , H04L67/1059 , H04L67/1065
摘要： A geographically distributed storage system including a global Peer-To-Peer (P2P) ring and a local P2P ring. The global P2P ring includes all storage nodes and the local P2P ring includes a group of the storage nodes. Each of the group of storage node belongs to the global P2P ring and the local P2P ring and each storage node includes global and local management information. The global management information includes a node table for managing topology information of a network connecting the group, a metadata table for managing locations of stored data objects, and a global routing table for managing routing in the global P2P ring. The local management information includes an object management table for managing stored data objects in the group, a Logical Unit (LU) management table for managing logical units in the group and a local routing table used for managing routing in the local P2P ring.
摘要翻译：包括全球对等（P2P）环和本地P2P环的地理分布式存储系统。全球P2P环包括所有存储节点，本地P2P环包括一组存储节点。存储节点组属于全球P2P环，本地P2P环和每个存储节点包括全局和本地管理信息。全局管理信息包括用于管理连接该组的网络的拓扑信息的节点表，用于管理所存储的数据对象的位置的元数据表以及用于管理全球P2P环中的路由的全局路由表。本地管理信息包括用于管理组中存储的数据对象的对象管理表，用于管理组中的逻辑单元的逻辑单元（LU）管理表和用于管理本地P2P环中的路由的本地路由表。

8. 发明申请

US20100228798A1 GEOGRAPHICAL DISTRIBUTED STORAGE SYSTEM BASED ON HIERARCHICAL PEER TO PEER ARCHITECTURE 有权
标题翻译：基于层次结构的地理分布式存储系统
公开(公告)号：US20100228798A1
公开(公告)日：2010-09-09
申请号：US12391548
申请日：2009-02-24
申请人： Shoji Kodama , Wujuan Lin
发明人： Shoji Kodama , Wujuan Lin
IPC分类号： G06F17/30 , G06F7/00 , G06F15/16
CPC分类号： G06F17/30241 , H04L41/0893 , H04L41/12 , H04L45/02 , H04L67/104 , H04L67/1059 , H04L67/1065
摘要： A geographically distributed storage system including a global Peer-To-Peer (P2P) ring and a local P2P ring. The global P2P ring includes all storage nodes and the local P2P ring includes a group of the storage nodes. Each of the group of storage node belongs to the global P2P ring and the local P2P ring and each storage node includes global and local management information. The global management information includes a node table for managing topology information of a network connecting the group, a metadata table for managing locations of stored data objects, and a global routing table for managing routing in the global P2P ring. The local management information includes an object management table for managing stored data objects in the group, a Logical Unit (LU) management table for managing logical units in the group and a local routing table used for managing routing in the local P2P ring.
摘要翻译：包括全球对等（P2P）环和本地P2P环的地理分布式存储系统。全球P2P环包括所有存储节点，本地P2P环包括一组存储节点。存储节点组属于全球P2P环，本地P2P环和每个存储节点包括全局和本地管理信息。全局管理信息包括用于管理连接该组的网络的拓扑信息的节点表，用于管理所存储的数据对象的位置的元数据表以及用于管理全球P2P环中的路由的全局路由表。本地管理信息包括用于管理组中存储的数据对象的对象管理表，用于管理组中的逻辑单元的逻辑单元（LU）管理表和用于管理本地P2P环中的路由的本地路由表。

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