Patent ID: 9065762
Filing Date: 2015-06-23
Classification: G06F,H04L,H04W

Abstract:
1. A method of controlling load shedding for excluding data streams of a data process input into a data stream management system (DSMS), the method comprising: determining a load shedding policy, the load shedding policy being a method of selecting data to be in the data process from the data streams or selecting data not to be in the data process from the data streams; determining a load shedding factor comprising a rate of the data not to be in the data process from the data streams, based on an amount of resources used by the DSMS or a remaining amount of resources; and selecting data streams which are to be in the data process or not to be in the data process and performing data processing on the data that is to be in the data process by applying the load shedding policy according to the load shedding factor, wherein the load shedding policy is determined by analyzing content described in a query that is composed by the user, and the load shedding policy is differently determined according to the analyzed content, wherein the load shedding policy comprises selecting data not to be in the data process generated before a specific time, the specific time determined based on the load shedding factor, a window size designated in the query, and a start time of the data streams of the data process input into the DSMS.