.png){kind=icon}
.png){kind=icon}
Return
CorrectMR: Authentication of Distributed SQL Execution on MapReduce
.png){kind=icon}
OA
AI
DOI：10.1109/TKDE.2019.2935968.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this paper, we consider the SQL Selection-GroupBy-Aggregation (SGA) query evaluation on an untrusted MapReduce system in which mappers and reducers may return incorrect results. We design CorrectMR, a system that supports efficient verification of result correctness for both intermediate and final results of SGA queries. CorrectMR includes the design of Pedersen Merkle R-tree (PMR-tree), a new authenticated data structure (ADS). To enable efficient verification, CorrectMR includes a distributed ADS construction mechanism that allows mappers/reducers to construct PMR-trees in parallel without a centralized party. CorrectMR provides the following verification functionality: (1) correctness verification of PMR-trees by replication; (2) correctness verification of intermediate (final, resp.) query results by constructing local (global, resp.) PMR-trees and verification objects. Our experimental results demonstrate the efficiency and effectiveness of CorrectMR.
Keywords:
MapReduce
authentication
verifiable computation
database security
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
10.4
Papers:
6.7K
Citations:
3.2W