Correction to: J Cloud Comp 10, 45 (2021)
https://doi.org/10.1186/s13677-021-00255-5
Following publication of the original article [1], the authors identified an error. This error has been corrected to express more accurately the work of Arkian et al. [2]. This change should also make the last lines of the fourth paragraph of the Section on Rule-based and control-theoretic adaptation approaches more understandable.Footnote 1
The erroneous and corrected text are published in this correction article. The original article has been updated.
Incorrect
-
When the performance is better than expected, a single processing instance is removed, while when it is worse, a single processing instance is removed.
Correct:
-
When the performance is better than expected, multiple processing instances can be removed, while when it is worse, a single processing instance is added.
Notes
“Moreover, the scaling algorithms we define allow more than one instances to be added as necessary which reduces the number of reconfigurations.”
References
Tsagkaropoulos A, Verginadis Y, Papageorgiou N, Paraskevopoulos F, Apostolou D, Mentzas G (2021) Severity: a QoS-aware approach to cloud application elasticity. J Cloud Comp 10(1):45. https://doi.org/10.1186/s13677-021-00255-5
Arkian H et al (2021) Model-based Stream Processing Auto-scaling in Geo-Distributed Environments. In: ICCCN 2021-30th International Conference on Computer Communications and Network
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Tsagkaropoulos, A., Verginadis, Y., Papageorgiou, N. et al. Correction to: Severity: a QoS-aware approach to cloud application elasticity. J Cloud Comp 10, 50 (2021). https://doi.org/10.1186/s13677-021-00266-2
Published:
DOI: https://doi.org/10.1186/s13677-021-00266-2