Watermark Management for Edge Computing System Based on Approximate Fault Tolerance

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  • エッジコンピューティング環境を想定した近似的な耐障害性保証に基づくウォータマーク制御手法

Abstract

Data loss due to failure is an important issue in data stream processing for edge computing. In particular, the detection of data loss is a big problem, and the conventional method accumulates delays. In this paper, we propose a watermark management method based on the cooperation of edges and a gateway. Our method estimates lost data at a later stage and generates watermarks based on user's error requirements. We utilize an error guarantee mechanism to calculate the error requirements for edges in each failure situation. We show that our method can recover lost data precisely and reduce delays according to the user's requirements through experiments.

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