公开(公告)号：EP2434729A3

公开(公告)日：2012-08-15

申请号：EP11182968.5

申请日：2011-09-27

申请人： Metaswitch Networks Ltd

发明人： Evans, Michael Jeffrey

IPC分类号： H04L29/08 ,  G06F11/18 ,  G06F11/20

CPC分类号： H04L67/1097 ,  G06F11/186 ,  G06F11/2064 ,  G06F2201/82 ,  H04L69/40

摘要： A method for providing access to data items from a distributed storage system comprising multiple storage nodes. Each data item is replicated across a plurality of storage nodes.
Data items are read from the distributed storage system by selecting between a first reading mode, comprising attempting to read the data item from a set of the storage nodes to check for data item consistency across at least a quorum of the set of nodes, and a second reading mode, comprising reading the data item from at least one of the storage nodes.
The reading mode is selected according to at least one detected characteristic of system status of the distributed storage system. The second reading mode is selected when the detected characteristic indicates a higher likelihood of data item consistency, and the first reading mode is selected when the detected characteristic indicates a lower likelihood of data item consistency.

公开(公告)号：EP2434729A2

公开(公告)日：2012-03-28

申请号：EP11182968.5

申请日：2011-09-27

申请人： Metaswitch Networks Ltd

发明人： Evans, Michael Jeffrey

IPC分类号： H04L29/08 ,  G06F11/18 ,  G06F11/20

CPC分类号： H04L67/1097 ,  G06F11/186 ,  G06F11/2064 ,  G06F2201/82 ,  H04L69/40

摘要： A method for providing access to data items from a distributed storage system comprising multiple storage nodes. Each data item is replicated across a plurality of storage nodes.
Data items are read from the distributed storage system by selecting between a first reading mode, comprising attempting to read the data item from a set of the storage nodes to check for data item consistency across at least a quorum of the set of nodes, and a second reading mode, comprising reading the data item from at least one of the storage nodes.
The reading mode is selected according to at least one detected characteristic of system status of the distributed storage system. The second reading mode is selected when the detected characteristic indicates a higher likelihood of data item consistency, and the first reading mode is selected when the detected characteristic indicates a lower likelihood of data item consistency.

摘要翻译： 一种用于从分布式存储系统，包括多个存储节点提供对数据的访问的方法的项目。 每个数据项的存储节点之间的多个复制。 DataItems由第一读取模式之间进行选择，包括：尝试从一组存储节点的读出的数据项，以横跨至少一组节点中的仲裁检查数据项的一致性从分布式存储系统读出并且 第二读取模式，包括从所述存储节点中的至少一个读取的数据项。 读取模式被选择雅丁到的分布式存储系统的系统状态的至少一个检测到的特征。被选择的第二读取模式当检测到的特性指示的数据项的一致性的较高可能性，并且选择第一读取模式当检测到的 特性表示的数据项的一致性的可能性较低。