A highly efficient data locality aware task scheduler for cloud-based systems

Ru Jia, Yun Yang, John Grundy, Jacky Keung, Hao Li

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

5 Citations (Scopus)


Scheduling tasks in the vicinity of stored data can significantly diminish network traffic. Scheduling optimisation can improve data locality by attempting to locate a task and its related data on the same node. Existing schedulers tend to ignore overhead and tradeoff between data transfer and task placement, and bandwidth consumption, by only emphasising data locality without considering other factors. We present a novel data locality aware scheduler for balancing time consumption and network bandwidth traffic-DLAforBT-to improve data locality for tasks and throughput, with the optimal placement policy exhibiting a threshold-based structure. DLAforBT uses bipartite graph modelling to represent data placement, adopts a judgment mechanism and a precise prediction model to determine moving data or moving computation. It integrates an improved Dominant Resource Fairness (DRF) resource allocation to capture tenants' resource allocation and run as many jobs as possible. DLAforBT improves by 16% of data locality rate, and 25% of throughput.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE International Conference on Cloud Computing - IEEE CLOUD 2019 - Part of the 2019 IEEE World Congress on Services
EditorsElisa Bertino, Carl K. Chang, Peter Chen, Ernesto Damiani, Michael Goul, Katsunori Oyama
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages3
ISBN (Electronic)9781728127057, 9781728127040
ISBN (Print)9781728127064
Publication statusPublished - 2019
EventIEEE International Conference on Cloud Computing 2019 - Milan, Italy
Duration: 8 Jul 201913 Jul 2019
Conference number: 12th
https://ieeexplore.ieee.org/xpl/conhome/8798376/proceeding (Proceedings)


ConferenceIEEE International Conference on Cloud Computing 2019
Abbreviated titleCLOUD 2019
Internet address


  • Bipar tite graph modelling
  • Cloud computing
  • Data locality
  • Multi-tenancy
  • Scheduling

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