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1. 发明申请

US20110307534A1 Distributed file system supporting data block dispatching and file processing method thereof 审中-公开
标题翻译：分布式文件系统支持数据块调度及其文件处理方法
公开(公告)号：US20110307534A1
公开(公告)日：2011-12-15
申请号：US13202966
申请日：2009-11-26
申请人： Jie Peng , Chong Wang , Ning Cheng , Bo Zhang , Jianbo Xia
发明人： Jie Peng , Chong Wang , Ning Cheng , Bo Zhang , Jianbo Xia
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： H04N21/4722 , G06F16/1834 , H04N21/23109 , H04N21/23116
摘要： A distributed file system and a file processing method thereof are disclosed. The distributed file system comprises at least two file nodes (1, 2, . . . , n), and each file node comprises a metadata server (12, 22, . . . , n2), a file access client (11, 21, . . . , n1), a file access server (13, 23, . . . , n3) and a storage medium (14, 24, . . . , n4), and file nodes can access each other. The file processing method comprises the steps of: storing different files in each file node in a scattered way; for each file node, users of the current file node firstly accessing metadata/valid data of a required file in the file node through the file access client of the file node; if the metadata/valid data of the required file are not found in the file node, the users access other nodes through the file access clients. The present invention effectively solves the problem that a metadata server is easy to become a performance bottleneck when a great number of users access hot data concurrently, and can furthest release the storage space of some file nodes by the file processing methods, such as data block dispatching and data block aging, thereby is greatly increasing the utilization ratio.
摘要翻译：公开了一种分布式文件系统及其文件处理方法。所述分布式文件系统包括至少两个文件节点（1,2，...，n），并且每个文件节点包括元数据服务器（12,22，...，n2），文件访问客户端（11,21 ，...，n1），文件访问服务器（13,23，...，n3）和存储介质（14,24，...，n4），并且文件节点可以彼此访问。文件处理方法包括以下步骤：以分散的方式在每个文件节点中存储不同的文件; 对于每个文件节点，当前文件节点的用户首先通过文件节点的文件访问客户端访问文件节点中所需文件的元数据/有效数据; 如果在文件节点中找不到所需文件的元数据/有效数据，则用户通过文件访问客户端访问其他节点。本发明有效地解决了当大量用户同时访问热数据时元数据服务器容易成为性能瓶颈的问题，并且可以通过文件处理方法（例如数据块）最大程度地释放一些文件节点的存储空间调度和数据块老化，从而大大提高了利用率。

2. 发明申请

US20120016916A1 Method and Apparatus for Processing and Updating Service Contents in a Distributed File System 审中-公开
标题翻译：用于处理和更新分布式文件系统中的服务内容的方法和装置
公开(公告)号：US20120016916A1
公开(公告)日：2012-01-19
申请号：US13257209
申请日：2009-08-18
申请人： Jianbo Xia , Jie Peng , Bo Zhang
发明人： Jianbo Xia , Jie Peng , Bo Zhang
IPC分类号： G06F17/30
CPC分类号： H04L67/06 , G06F16/10 , G06F16/182 , H04L67/1095 , H04L67/1097
摘要： The present invention discloses a method for processing service contents of a service node in a distributed file system: after receiving uploaded service contents, generating a file block which is stored in at least one service node, and the service node which doesn't store said file block storing a virtual file block, of which an attribute list is configured. Meanwhile, the present invention discloses a method for updating service contents: after receiving an on-demand request of a file block, the service node judging whether it is a virtual file block, and if yes, according to information of at least one access address of said file block, reading said file block and responding to said on-demand request, and updating an access popularity value of said virtual file block, and judging whether an updated access popularity value reaches a threshold. Meanwhile, the present invention discloses an apparatus implementing above methods.
摘要翻译：本发明公开了一种用于处理分布式文件系统中的服务节点的服务内容的方法：在接收上传的服务内容之后，生成存储在至少一个服务节点中的文件块，以及不存储所述服务节点的服务节点存储虚拟文件块的文件块，其中配置了属性列表。同时，本发明公开了一种更新服务内容的方法：在接收到文件块的按需请求之后，服务节点判断它是否是虚拟文件块，如果是，则根据至少一个访问地址的信息读取所述文件块并响应所述按需请求，更新所述虚拟文件块的访问流行度值，并且判断更新的访问受欢迎度值是否达到阈值。同时，本发明公开了一种实现上述方法的装置。

3. 发明申请

US20120084379A1 METHOD AND APPARATUS FOR CHECKING AND SYNCHRONIZING DATA BLOCK IN DISTRIBUTED FILE SYSTEM 审中-公开
标题翻译：在分布式文件系统中检查和同步数据块的方法和装置
公开(公告)号：US20120084379A1
公开(公告)日：2012-04-05
申请号：US13376622
申请日：2009-12-08
申请人： Jie Peng , Ning Cheng , Chong Wang , Jianbo Xia , Bo Zhang
发明人： Jie Peng , Ning Cheng , Chong Wang , Jianbo Xia , Bo Zhang
IPC分类号： G06F15/16
CPC分类号： G06F16/184
摘要： A method and apparatus for checking and synchronizing data blocks in a distributed file system are provided. The distributed file system includes a metadata server, data block servers and a storage medium; the metadata server specifies one of the data block servers in the same group as a master data block server, while takes the others as slave data block servers. The method includes: the metadata server initiating a data block checking request to the master data block server; the master data block server checking all the data block information managed by the slave data block servers in the group, synchronizing according to the checking result, and then reporting the checking and synchronization results to the metadata server; the metadata server updates the metadata information according to the reported checking and synchronization results. Therefore, the metadata server only takes very little time to fulfill the checking and synchronizing the database.
摘要翻译：提供了一种用于在分布式文件系统中检查和同步数据块的方法和装置。分布式文件系统包括元数据服务器，数据块服务器和存储介质; 元数据服务器指定与主数据块服务器相同的组中的数据块服务器之一，而将其他数据块服务器作为从数据块服务器。该方法包括：元数据服务器向主数据块服务器发起数据块检查请求; 主数据块服务器检查由组内的从属数据块服务器管理的所有数据块信息，根据检查结果进行同步，然后将检查和同步结果报告给元数据服务器; 元数据服务器根据报告的检查和同步结果更新元数据信息。因此，元数据服务器只需要很少的时间才能完成对数据库的检查和同步。

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