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Accordion: Balancing Performance and Cost in Cloud-Native Data Analysis with Intra-Query Runtime Elasticity

Summary: Proposes Intra‑Query Runtime Elasticity (IQRE) to adjust a query's degree-of-parallelism during execution, enabling fine-grained latency vs. cost trade-offs in cloud-native OLAP. Presents Accordion, the first IQRE engine with an auto-tuner and interactive UI for manual or automatic intra-query DOP changes. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
14331
Venue
VLDB
Year
2025
Pagerank
5.093636e-05
Overall Rank
11,031 | 24.32%
DOI
10.14778/3750601.3750658

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BibTeX Citation

@article{zhang_vldb25,
        title = {{Accordion: Balancing Performance and Cost in Cloud-Native Data Analysis with Intra-Query Runtime Elasticity}},
        author = {Zhang, Xukang and Zhang, Huanchen and Meng, Xiaofeng},
        journal = {PVLDB},
        series = {{VLDB} '25},
        volume = {18},
        number = {12},
        pages = {5307--5310},
        doi = {10.14778/3750601.3750658},
        url = {https://doi.org/10.14778/3750601.3750658},
        year = {2025}
}

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