Efficient in-place update with grouped and pipelined data transmission in erasure-coded storage systems

@article{Pei2017EfficientIU,
  title={Efficient in-place update with grouped and pipelined data transmission in erasure-coded storage systems},
  author={Xiaoqiang Pei and Yijie Wang and Xingkong Ma and Fangliang Xu},
  journal={Future Generation Comp. Syst.},
  year={2017},
  volume={69},
  pages={24-40}
}
Distributed storage systems usually adopt erasure coding to achieve better tradeoff between the space efficiency and the data reliability. In-place updates are often used to overwrite the existing data rather than append the new data so as to ensure the data access efficiency. However, existing in-place update approaches either introduce significant I/O overhead or cause low update efficiency in erasure-coded storage systems due to the consistent update of parity blocks. In this paper, we… CONTINUE READING