• Aleksandr Alekseev
  • Stephane Jezequel
  • Andrey Kiryanov
  • Alexei Klimentov
  • Tatiana Korchuganova
  • Valery Mitsyn
  • Danila Oleynik
  • Serge Smirnov
  • Andrey Zarochentsev

In this paper, we describe various data caching scenarios test implementation and lessons learned. In particular, we show how local data caches may be configured, deployed, and tested. In our studies, we are using xCache, which is a special type of Xrootd server setup to cache input data for a physics analysis. A relatively large Tier2 storage is used as a primary data source and several geographically distributed smaller WLCG sites configured specifically for this test. All sites are connected to the LHCONE network. The testbed configuration is evaluated using both synthetic tests and real ATLAS computational jobs submitted via the HammerCloud toolkit. The impact and realistic applicability of different local cache configurations is explained, including both the network infrastructure and the configuration of computing nodes.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalCEUR Workshop Proceedings
Volume2679
StatePublished - 2020
Event4th International Workshop on Data Life Cycle in Physics, DLC 2020 - Moscow, Russian Federation
Duration: 8 Jun 202010 Jun 2020

    Scopus subject areas

  • Computer Science(all)

    Research areas

  • DOMA, Federated Storage, WLCG, xCache

ID: 88354887