arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.05908cs.SEcs.LG
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经验报告:基于深度学习的系统日志分析用于异常检测

Experience Report: Deep Learning-based System Log Analysis for Anomaly Detection

The Chinese University of Hong Kong(香港中文大学);Sun Yat-sen University(中山大学);Huawei Cloud BU(华为云业务部)

Zhuangbin Chen, Jinyang Liu, Wenwei Gu, Yuxin Su, Michael R. Lyu

摘要:

对于许多软件系统,特别是大型分布式系统,可靠性和连续性是一个必不可少的资源。它们忠实地记录运行时信息,以便于系统故障排除和行为理解。由于现代软件系统的规模和复杂性,日志的数量已经达到了前所未有的水平。因此,对于基于日志的异常检测,传统的手动检查方法或甚至传统的基于机器学习的方法变得不切实际,这成为基于深度学习的解决方案的快速开发的催化剂。然而,目前缺乏严格的比较之间的代表性的日志为基础的异常检测器,诉诸神经网络。此外,重新实现过程需要付出不小的努力,并且很容易引入偏差。为了更好地了解不同的异常检测器的特点,在本文中,我们提供了一个全面的审查和评估五个流行的神经网络使用的六个国家的最先进的方法。特别地,所选择的方法中有四种是无监督的,其余两种是有监督的。这些方法进行了评估与两个公开的日志数据集,其中包含近1600万日志消息和0.4万异常实例。我们相信我们的工作可以作为这一领域的基础,并有助于未来的学术研究和工业应用。

英文摘要:

Logs have been an imperative resource to ensure the reliability and continuity of many software systems, especially large-scale distributed systems. They faithfully record runtime information to facilitate system troubleshooting and behavior understanding. Due to the large scale and complexity of modern software systems, the volume of logs has reached an unprecedented level. Consequently, for log-based anomaly detection, conventional manual inspection methods or even traditional machine learning-based methods become impractical, which serve as a catalyst for the rapid development of deep learning-based solutions. However, there is currently a lack of rigorous comparison among the representative log-based anomaly detectors that resort to neural networks. Moreover, the re-implementation process demands non-trivial efforts, and bias can be easily introduced. To better understand the characteristics of different anomaly detectors, in this paper, we provide a comprehensive review and evaluation of five popular neural networks used by six state-of-the-art methods. Particularly, four of the selected methods are unsupervised, and the remaining two are supervised. These methods are evaluated with two publicly available log datasets, which contain nearly 16 million log messages and 0.4 million anomaly instances in total. We believe our work can serve as a basis in this field and contribute to future academic research and industrial applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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