منابع مشابه
Operator Scheduling in a Data Stream Manager
Many stream-based applications have sophisticated data processing requirements and real-time performance expectations that need to be met under asynchronous, time-varying data streams. In order to address these challenges, we propose novel operator scheduling approaches that specify (1) which operators to schedule (2) in which order to schedule the operators, and (3) how many tuples to process ...
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High-volume, high-speed data streams may overwhelm the capabilities of stream processing systems; techniques such as data prioritization, avoidance of unnecessary processing and ondemand result production may be necessary to reduce processing requirements. However, the dynamic nature of data streams, in terms of both rate and content, makes the application of such techniques challenging. Such t...
متن کاملScheduling continuous queries in data stream management systems
Recently, several policies have been proposed for scheduling multiple Continuous Queries (CQs) in a Data Stream Management System (DSMS). The decision on which policy to use plays an important role in shaping the percieved online performance provided by the DSMS. In this tutorial, we provide an overview of different policies employed by current CQ schedulers and the performance goals optimized ...
متن کاملTask Scheduling in Data Stream Processing
One possible technique of data processing is its transformation into a data stream and the execution of particular operations on the data tuples. These operations can be usually processed concurrently especially when the plan of operations is branched. Therefore, this way of data processing is suitable for evaluation in parallel environment. On the other hand, the ordering of the execution of t...
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ژورنال
عنوان ژورنال: The VLDB Journal
سال: 2004
ISSN: 1066-8888,0949-877X
DOI: 10.1007/s00778-004-0132-6