公开(公告)号：US20140089259A1

公开(公告)日：2014-03-27

申请号：US14093124

申请日：2013-11-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shi CHENG

IPC: G06F17/30

CPC classification number: G06F17/30575 ,  G06F3/061 ,  G06F3/0659 ,  G06F3/067

Abstract: An operation method and apparatus for a data storage system are provided, which relate to the field of data storage and enhance efficiency of a read operation on distributed stored data. The method includes: receiving, by a data node, a data operation message, where the data operation message carries a data operation type and a data object of an operation; querying a state parameter of the data object, where the state parameter is allocated to the data node by a management node, and is used to indicate an update state of the data object, and the update state includes a synchronous state, a semi-synchronous state and an asynchronous state; and if the state parameter is the synchronous state and the operation type is a read operation, reading the data object stored by the data node. Embodiments of the invention are used to operate data in a distributed data storage system.

Abstract translation: 提供了一种用于数据存储系统的操作方法和装置，其涉及数据存储领域，并提高对分布式存储数据的读取操作的效率。 该方法包括：由数据节点接收数据操作消息，其中数据操作消息携带操作的数据操作类型和数据对象; 查询数据对象的状态参数，其中状态参数由管理节点分配给数据节点，并用于指示数据对象的更新状态，更新状态包括同步状态，半同步 状态和异步状态; 并且如果状态参数是同步状态，并且操作类型是读取操作，则读取由数据节点存储的数据对象。 本发明的实施例用于在分布式数据存储系统中操作数据。

公开(公告)号：US20130262400A1

公开(公告)日：2013-10-03

申请号：US13852653

申请日：2013-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Minqi ZHOU ,  Shi CHENG

IPC: G06F17/30

CPC classification number: G06F16/2228

Abstract: Embodiments of the present invention disclose a data index query method including: after performing Gray encoding on an index attribute, shuffling and encoding, by a server side, a Gray code corresponding to the index attribute to generate at least one index key value and storing the index key value; generating, by the server side according to query condition information carried in a query request, an index key value set or interval corresponding to the query condition information; obtaining an indicator set or interval used for indicating data and corresponding to the index key value set or interval according to the index key value set or interval; generating an intermediate data set corresponding to the indicator set or interval; and finally obtaining, from the intermediate data set, a target data set corresponding to the query condition information according to the query condition information carried in the query request.

Abstract translation: 本发明的实施例公开了一种数据索引查询方法，包括：在对服务器侧的索引属性，混洗和编码执行Gray编码之后，对应于索引属性的格雷码，生成至少一个索引关键字值，并存储 索引值; 根据查询请求中携带的查询条件信息，由服务器侧生成与查询条件信息对应的索引关键字值集合或间隔; 根据索引关键字值或间隔，获得指标数据，用于指示数据并对应于索引关键字值集或间隔; 生成对应于指示符集或间隔的中间数据集; 最后根据查询请求中携带的查询条件信息从中间数据集中获取与查询条件信息对应的目标数据集。