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QUERY DEPLOYMENT PLAN FOR A DISTRIBUTED SHARED STREAM PROCESSING SYSTEM

机译:分布式共享流处理系统的查询部署计划

摘要

A method of providing a deployment plan for a query in a distributed shared stream processing system includes storing a set of feasible deployment plans for a query that is currently deployed in the stream processing system. A query includes a plurality of operators hosted on nodes in the stream processing system providing a data stream responsive to a client request for information. The method also includes determining whether a QoS metric constraint for the query is violated, and selecting a deployment plan from the set of feasible deployment plans to be used for providing the query in response to determining the QoS metric constraint is violated.
机译:一种在分布式共享流处理系统中为查询提供部署计划的方法,包括存储一组当前在流处理系统中部署的查询的可行部署计划。查询包括托管在流处理系统中的节点上的多个运算符,这些运算符响应于客户对信息的请求而提供数据流。该方法还包括确定是否违反了针对查询的QoS度量约束,以及响应于确定违反了QoS度量约束而从可行部署计划集合中选择部署计划以用于提供查询。

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