公开(公告)号：US20150154257A1

公开(公告)日：2015-06-04

申请号：US14554719

申请日：2014-11-26

Applicant: NEC Laboratories America, Inc.

Inventor： Pengcheng Xiong ,  Vahit Hakan Hacigumus

IPC: G06F17/30 ,  H04L12/26

CPC classification number: G06F16/24542 ,  H04L43/0876

Abstract: Systems and methods are disclosed for selecting a query plan in a database by monitoring network state information and flow information; and selecting an adaptive plan for execution with a query manager that receives the network state information and flow information, including: receiving a query, parsing the query, generating and optimizing a global query plan; dividing the global query plan into local plans; sending the local plans to corresponding data store sites for execution with separate threads; and orchestrating data flows among the data store sites and forwarding a final result to a user.

Abstract translation: 公开了通过监视网络状态信息和流信息来选择数据库中的查询计划的系统和方法; 以及选择用于接收所述网络状态信息和流信息的查询管理器执行的自适应计划，包括：接收查询，解析所述查询，生成和优化全局查询计划; 将全局查询计划划分为本地计划; 将本地计划发送到相应的数据存储站点，以执行单独的线程; 并在数据存储站点之间编排数据流，并将最终结果转发给用户。

公开(公告)号：US20150154258A1

公开(公告)日：2015-06-04

申请号：US14554751

申请日：2014-11-26

Applicant: NEC Laboratories America, Inc.

Inventor： Pengcheng Xiong ,  Vahit Hakan Hacigumus

IPC: G06F17/30 ,  H04L12/26

CPC classification number: G06F16/24542 ,  H04L43/0876

Abstract: Systems and methods are disclosed for operating a software-defined network (SDN) by slicing the SDN into differentiated queues according to different priorities to prioritizes the queries based on the user's request; reserving necessary bandwidth for specific queries to ensure specific performance levels based on the user's request; providing information to a query plan executor; and managing performance of analytical queries in distributed relational databases.

Abstract translation: 公开了用于通过根据不同优先级将SDN划分成差分队列来操作软件定义网络（SDN）的系统和方法，以基于用户的请求对查询进行优先级排序; 为特定查询保留必要的带宽，以确保基于用户请求的特定性能级别; 向查询计划执行者提供信息; 并分析分布式关系数据库中的分析查询的性能。