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    QUERY SUMMARY GENERATION USING ROW-COLUMN DATA STORAGE
    2.
    发明申请
    QUERY SUMMARY GENERATION USING ROW-COLUMN DATA STORAGE 有权
    QUERY摘要使用ROW-COLUMN数据存储生成

    公开(公告)号：US20140330816A1

    公开(公告)日：2014-11-06

    申请号：US14358500

    申请日：2011-11-18

    申请人： Debabrata Dash ,  Wenting Tang ,  Marylou Orayani ,  Bradley W. Cleveland ,  Masaki Utsumiya

    发明人： Debabrata Dash ,  Wenting Tang ,  Marylou Orayani ,  Bradley W. Cleveland ,  Masaki Utsumiya

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30554 ,  G06F17/30315 ,  G06F17/30477 ,  G06F17/30536

    摘要： A data storage system (122) includes a column store (281) and a row store (282). The data storage system (122) may generate a query summary. The data storage system (122) determines query summary fields comprised of a subset of fields from a schema used to store data in the row store (282). The data storage system (122) searches the column store (281) or the row store (282) for query results in the query summary fields. A query summary field is generated from the query results in the query summary fields.

    摘要翻译： 数据存储系统（122）包括列存储（281）和行存储（282）。 数据存储系统（122）可以生成查询摘要。 数据存储系统（122）确定由来自用于存储行存储（282）中的数据的模式的字段子集组成的查询摘要字段。 数据存储系统（122）在查询摘要字段中搜索列存储（281）或行存储（282）中的查询结果。 查询摘要字段从查询摘要字段中的查询结果生成。

    CLUSTERING EVENT DATA BY MULTIPLE TIME DIMENSIONS
    4.
    发明申请
    CLUSTERING EVENT DATA BY MULTIPLE TIME DIMENSIONS 有权
    通过多个时间尺寸聚合事件数据

    公开(公告)号：US20140359771A1

    公开(公告)日：2014-12-04

    申请号：US14359261

    申请日：2012-01-26

    申请人： Debabrata Dash ,  Wenting Tang ,  Marylou Orayani

    发明人： Debabrata Dash ,  Wenting Tang ,  Marylou Orayani

    IPC分类号： H04L29/06 ,  G06F11/34 ,  G06F17/30

    CPC分类号： H04L63/1416 ,  G06F11/3476 ,  G06F17/30699 ,  G06F17/30705 ,  G06F21/552 ,  G06F2201/86 ,  G06F2221/2151 ,  H04L63/1408 ,  H04L63/1441

    摘要： Systems and methods for processing log data are provided. A set of data chunks is determined. Each data chunk is associated with a set of events, which are grouped according to a primary time dimension field of each event of the set of events. A metadata structure is determined for each of the data chunks. The metadata structure includes comprises a range of the primary time dimension field of all of the events in the data chunk and a range of a secondary time dimension field of all of the events in the data chunk. A subset of the data chunks is selected. A data chunk associated with at least one event of the plurality of events is generated according to the secondary time dimension field of the at least one event.

    摘要翻译： 提供了用于处理日志数据的系统和方法。 确定一组数据块。 每个数据块与一组事件相关联，这些事件根据事件集的每个事件的主时间维度字段进行分组。 确定每个数据块的元数据结构。 元数据结构包括数据块中所有事件的主要时间维度域的范围以及数据块中所有事件的辅助时间维度域的范围。 选择一个数据块的子集。 根据所述至少一个事件的次要时间维度字段来生成与所述多个事件中的至少一个事件相关联的数据块。

    System and method for determining a streaming media server configuration for supporting expected workload in compliance with at least one service parameter
    6.
    发明申请
    System and method for determining a streaming media server configuration for supporting expected workload in compliance with at least one service parameter 有权
    用于确定用于支持符合至少一个服务参数的预期工作负载的流媒体服务器配置的系统和方法

    公开(公告)号：US20050228879A1

    公开(公告)日：2005-10-13

    申请号：US10801793

    申请日：2004-03-16

    申请人： Ludmila Cherkasova ,  Wenting Tang ,  Sharad Singhal

    发明人： Ludmila Cherkasova ,  Wenting Tang ,  Sharad Singhal

    IPC分类号： G06F9/50 ,  G06F15/173 ,  H04N5/00

    CPC分类号： G06F9/505 ,  G06F9/5077 ,  G06F2209/5011 ,  G06F2209/5019 ,  G06F2209/508 ,  H04N21/2396

    摘要： According to at least one embodiment, a method comprises receiving, into a capacity planning system, workload information representing an expected workload of client accesses of streaming media files from a site. The method further comprises receiving, into the capacity planning system, at least one service parameter that defines a desired service characteristic to be provided by a media server configuration under the expected workload. The method further comprises determining, by the capacity planning system, for at least one server configuration, how many servers of the at least one server configuration to be included at the site for supporting the expected workload in compliance with the at least one service parameter.

    摘要翻译： 根据至少一个实施例，一种方法包括向容量规划系统接收表示来自站点的流媒体文件的客户端访问的预期工作负载的工作负载信息。 所述方法还包括：在所述容量规划系统中接收至少一个服务参数，所述至少一个服务参数在期望的工作负载下定义由媒体服务器配置提供的期望服务特性。 该方法还包括通过容量规划系统确定至少一个服务器配置，要包括在该站点处的至少一个服务器配置的多少个服务器以支持符合至少一个服务参数的预期工作负载。

    Analytical cache performance model for a media server
    7.
    发明授权
    Analytical cache performance model for a media server 有权
    媒体服务器的分析缓存性能模型

    公开(公告)号：US07925738B2

    公开(公告)日：2011-04-12

    申请号：US10740276

    申请日：2003-12-18

    申请人： Wenting Tang ,  Ludmila Cherkasova

    发明人： Wenting Tang ,  Ludmila Cherkasova

    IPC分类号： G06F15/173

    CPC分类号： H04N21/23106 ,  H04N21/2181 ,  H04N21/2405

    摘要： According to at least one embodiment, a method comprises receiving a session trace log identifying a plurality of sessions accessing streaming media files from a media server. The method further comprises deriving from the session trace log a segment trace log that identifies for each of a plurality of time intervals the segments of the streaming media files accessed, and using the segment trace log to develop an analytical cache performance model. According to at least one embodiment, a method comprises receiving workload information representing client accesses of streaming media files from a media server, and using an analytical cache performance model to compute a cache hit ratio for the media server under the received workload.

    摘要翻译： 根据至少一个实施例，一种方法包括接收标识从媒体服务器访问流媒体文件的多个会话的会话跟踪日志。 所述方法还包括从所述会话跟踪日志中导出段跟踪日志，所述段跟踪日志针对所访问的流媒体文件的所述段的多个时间间隔中的每一个标识，并且使用所述段跟踪日志来开发分析高速缓存性能模型。 根据至少一个实施例，一种方法包括接收表示来自媒体服务器的流媒体文件的客户端访问的工作负载信息，以及使用分析高速缓存性能模型来计算所接收的工作负载下的媒体服务器的高速缓存命中率。

    Method and system for a modular transmission control protocol (TCP) rare-handoff design in a streams based transmission control protocol/internet protocol (TCP/IP) implementation
    8.
    发明授权
    Method and system for a modular transmission control protocol (TCP) rare-handoff design in a streams based transmission control protocol/internet protocol (TCP/IP) implementation 有权
    基于流传输控制协议/互联网协议（TCP / IP）实现的模块化传输控制协议（TCP）稀疏切换设计的方法和系统

    公开(公告)号：US07831731B2

    公开(公告)日：2010-11-09

    申请号：US09880631

    申请日：2001-06-12

    申请人： Wenting Tang ,  Ludmila Cherkasova ,  Lance Warren Russell

    发明人： Wenting Tang ,  Ludmila Cherkasova ,  Lance Warren Russell

    IPC分类号： G06F15/16 ,  G06F15/177 ,  G06F15/173

    CPC分类号： H04L29/06 ,  H04L67/1002 ,  H04L67/1014 ,  H04L67/1017 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163

    摘要： A method and system for handing-off TCP states in a communication network. Specifically, the present invention allows for handing-off TCP states between nodes in an associated network that is optimized for rare handoff of TCP states. The handoff occurs between dynamically loadable modules that wrap around the TCP/IP stack located at a front-end node and a selected back-end web server. A handoff protocol implemented by the loadable modules works within the kernel level of the existing TCP/IP code. As such, no changes to the existing TCP/IP code is necessary. The loadable modules at the front-end are able to select a back-end web server depending on the content of the web request, coordinate handing off TCP states, and forward packets to the back-end web server. Loadable modules at the selected back-end modify response packets going out to reflect the proper TCP state of the front-end node.

    摘要翻译： 一种在通信网络中切断TCP状态的方法和系统。 具体地说，本发明允许在针对TCP状态的罕见切换优化的关联网络中的节点之间切换TCP状态。 切换发生在围绕位于前端节点的TCP / IP堆栈的动态可加载模块和选定的后端Web服务器之间。 由可加载模块实现的切换协议在现有TCP / IP代码的内核级别内工作。 因此，不需要对现有TCP / IP代码进行任何更改。 前端的可加载模块能够根据Web请求的内容选择后端Web服务器，协调处理TCP状态，并将数据包转发到后端Web服务器。 所选后端的可加载模块会修改响应数据包，以反映前端节点的正确TCP状态。

    System and method for modeling the memory state of a streaming media server
    9.
    发明授权
    System and method for modeling the memory state of a streaming media server 有权
    用于建模流媒体服务器的内存状态的系统和方法

    公开(公告)号：US07310681B2

    公开(公告)日：2007-12-18

    申请号：US10601956

    申请日：2003-06-23

    申请人： Ludmila Cherkasova ,  Wenting Tang

    发明人： Ludmila Cherkasova ,  Wenting Tang

    IPC分类号： G06F15/16 ,  G06F17/30

    CPC分类号： H04L65/80 ,  H04L29/06027 ,  H04N21/2396 ,  H04N21/8456 ,  Y10S707/99953

    摘要： In certain embodiments, a method for modeling the memory of a streaming media server is provided. The method comprises creating a segment-based access model for at least one streaming media file available on a streaming media server, and using the segment-based access model to construct a segment-based model of the media server's memory. In certain embodiments, a system comprises a server comprising a memory having a capacity, the server operable to serve at least one streaming file to clients communicatively coupled thereto. The system further comprises a controller operable to determine an amount of unique bytes of the at least one streaming file served by the server during an elapsed time interval, wherein the amount of unique bytes are equal to the capacity of the server's memory.

    摘要翻译： 在某些实施例中，提供了一种用于建模流媒体服务器的存储器的方法。 该方法包括为流媒体服务器上可用的至少一个流媒体文件创建基于片段的访问模型，并且使用基于片段的访问模型来构建媒体服务器的存储器的基于片段的模型。 在某些实施例中，系统包括服务器，该服务器包括具有容量的存储器，所述服务器可操作以将至少一个流文件提供给与其通信耦合的客户端。 所述系统还包括控制器，其可操作以确定所述服务器在经过时间间隔期间服务的所述至少一个流文件的唯一字节的数量，其中所述唯一字节的数量等于所述服务器的存储器的容量。