论文标题
Atlas EventIndex：所有Atlas实验事件的BigData目录
The ATLAS EventIndex: a BigData catalogue for all ATLAS experiment events
论文作者
论文摘要
Atlas EventIndex系统包括Atlas实验在CERN LHC加速器收集，处理或生成的所有事件的目录，以及所有相关的软件工具，用于收集，存储和查询此信息。阿特拉斯（Atlas）记录了每年运行的数十亿个粒子相互作用，对它们进行处理以进行分析，并生成更大的模拟数据样本。需要一个全局目录来跟踪每个事件记录的位置，并能够搜索和检索特定事件以进行深入调查。每个EventIndex记录都包含有关事件本身的摘要信息以及包含完整事件的文件的指示。 EventIndex系统的大多数组件都是使用BigData开源工具实现的。本文描述了及时的建筑选择及其演变，以及所有EventIndex组件的过去，当前和可预见的未来实现。
The ATLAS EventIndex system comprises the catalogue of all events collected, processed or generated by the ATLAS experiment at the CERN LHC accelerator, and all associated software tools to collect, store and query this information. ATLAS records several billion particle interactions every year of operation, processes them for analysis and generates even larger simulated data samples; a global catalogue is needed to keep track of the location of each event record and be able to search and retrieve specific events for in-depth investigations. Each EventIndex record includes summary information on the event itself and the pointers to the files containing the full event. Most components of the EventIndex system are implemented using BigData open-source tools. This paper describes the architectural choices and their evolution in time, as well as the past, current and foreseen future implementations of all EventIndex components.
