日志严重级别很重要：多域映射
Log severity levels matter: A multivocal mapping
摘要：
日志严重性级别的选择可能具有挑战性，并在生成可靠的日志数据时引起问题。然而，缺乏支持这一挑战的规范和实用指南。在这项研究中，我们提出了一个多域系统映射日志严重程度从同行评审的文献，日志库，和从业者的意见。我们分析了19个严重性级别、27项研究和40个日志库。我们的研究结果表明，冗余和语义相似的水平和趋势，共六个级别的水平收敛。我们的贡献有助于利用日志条目的可靠性：（i）映射有关日志严重性级别的文献，（ii）映射日志库中的严重性级别，（iii）一组综合的六个定义和四个一般用途的严重性级别。我们建议开发人员使用标准的命名法，对于日志库创建者，我们建议提供日志严重性级别的准确和明确的定义。
英文摘要：
The choice of log severity level can be challenging and cause problems in producing reliable logging data. However, there is a lack of specifications and practical guidelines to support this challenge. In this study, we present a multivocal systematic mapping of log severity levels from peer-reviewed literature, logging libraries, and practitioners' views. We analyzed 19 severity levels, 27 studies, and 40 logging libraries. Our results show redundancy and semantic similarity between the levels and a tendency to converge the levels for a total of six levels. Our contributions help leverage the reliability of log entries: (i) mapping the literature about log severity levels, (ii) mapping the severity levels in logging libraries, (iii) a set of synthesized six definitions and four general purposes for severity levels. We recommend that developers use a standard nomenclature, and for logging library creators, we suggest providing accurate and unambiguous definitions of log severity levels.
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