Dynamic Plan Migration for Continuous Queries Over Data Streams

  title={Dynamic Plan Migration for Continuous Queries Over Data Streams},
  author={Yali Zhu and Elke A. Rundensteiner and George T. Heineman},
  booktitle={SIGMOD Conference},
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for stream monitoring systems where long-running queries may have to withstand fluctuations in stream workloads and data characteristics. Existing migration methods generally adopt a pause-drain-resume strategy that pauses the processing of new data, purges all old data in the existing plan, until finally the new plan can… CONTINUE READING
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