A federated Xrootd cache
A federated Xrootd cache
复制标题
联合 Xrootd 缓存
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
F. Würthwein
中科院分区：
文献类型：
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作者：
E. Fajardo;A. Tadel;M. Tadel;B. Steer;T. Martin;F. Würthwein
随着大型强子对撞机实验从计算分层模型（数据在计算现场预取和存储）向动态数据模型的转变，模型带来了一个机会。由于现在使用XrootD数据联合将数据分发给计算作业，因此出现了明显的缓存机会。在本文中，我们介绍了安装和使用Federated Xrootd Cache（多个独立节点一致的Xrootd Cache）的经验。有一些微调和缩放测试执行，使其适合CMS分析案例。最后，我们将展示如何将这个联邦缓存扩展为一个缓存联邦，其中缓存可以分布在计算中心之间。
With the shift in the LHC experiments from the computing tiered model where data was prefetched and stored at the computing site towards a bring data on the fly, model came an opportunity. Since data is now distributed to computing jobs using XrootD federation of data, a clear opportunity for caching arose. In this document, we present the experience of installing and using a Federated Xrootd Cache (A Xrootd Cache consistent of several independent nodes). There is some fine tuning towards and scaling tests performed to make it fit for the CMS Analysis case. Finally, we show how this federated cache can be expanded into a federation of caches in which the caches can be distributed among computing centers.