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Communication Dans Un Congrès Année : 2020

The ATLAS EventIndex for LHC Run 3

Dario Barberis
  • Fonction : Auteur
Igor Aleksandrov
  • Fonction : Auteur
Evgeny Alexandrov
  • Fonction : Auteur
Zbigniew Baranowski
  • Fonction : Auteur
Gancho Dimitrov
  • Fonction : Auteur
Álvaro Fernández Casaní
  • Fonction : Auteur
Elizabeth J. Gallas
  • Fonction : Auteur
Carlos García Montoro
  • Fonction : Auteur
Santiago González de la Hoz
  • Fonction : Auteur
Andrei Kazymov
  • Fonction : Auteur
Mikhail Mineev
  • Fonction : Auteur
Fedor Prokoshin
  • Fonction : Auteur
Javier Sánchez
  • Fonction : Auteur
José Salt Cairols
  • Fonction : Auteur
Miguel Villaplana Perez
  • Fonction : Auteur

Résumé

The ATLAS EventIndex was designed in 2012-2013 to provide a global event catalogue and limited event-level metadata for ATLAS analysis groups and users during the LHC Run 2 (2015-2018). It provides a good and reliable service for the initial use cases (mainly event picking) and several additional ones, such as production consistency checks, duplicate event detection and measurements of the overlaps of trigger chains and derivation datasets. The LHC Run 3, starting in 2021, will see increased data-taking and simulation production rates, with which the current infrastructure would still cope but may be stretched to its limits by the end of Run 3. This proceeding describes the implementation of a new core storage service that will be able to provide at least the same functionality as the current one for increased data ingestion and search rates, and with increasing volumes of stored data. It is based on a set of HBase tables, with schemas derived from the current Oracle implementation, coupled to Apache Phoenix for data access; in this way we will add to the advantages of a BigData based storage system the possibility of SQL as well as NoSQL data access, allowing to re-use most of the existing code for metadata integration.

Dates et versions

hal-03034767 , version 1 (01-12-2020)

Identifiants

Citer

Dario Barberis, Igor Aleksandrov, Evgeny Alexandrov, Zbigniew Baranowski, Gancho Dimitrov, et al.. The ATLAS EventIndex for LHC Run 3. 24th International Conference on Computing in High Energy and Nuclear Physics, Nov 2019, Adelaide, Australia. pp.04017, ⟨10.1051/epjconf/202024504017⟩. ⟨hal-03034767⟩
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