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Can We Use Programmer's Knowledge? Fixing Parameter Configuration Errors in Hadoop through Analyzing Q&amp;A Sites

Configuration errors are common in software systems, especially in cloud systems with plenty of components and configuration files. In this paper, we propose a fully automatic approach to fixing parameter configuration errors via analyzing Q&A sites. We analyze the pages and retrieve a list of question answers. Then we generate edit scripts through answer posts in question pages automatically. Experiment results show that our approach is able to generate fixing scripts, and these scripts can accurately reflect solutions buried in natural language of answer posts with 83.60% ratio.