Wuppertal 2015 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 99: Grid-Computing II
T 99.1: Vortrag
Donnerstag, 12. März 2015, 16:45–17:00, K.11.10 (K8)
HammerCloud - Developments and Operations in the Grid — Johannes Elmsheuser1, Friedrich Hönig1, •Federica Legger1, and Michael Böhler2 — 1Ludwig-Maximilians-Universität München — 2Albert-Ludwigs-Universität Freiburg
With the exponential growth of LHC (Large Hadron Collider) data in the years 2010-2012, distributed computing has become the established way to analyse collider data. The ATLAS experiment Grid infrastructure includes more than 130 sites worldwide, ranging from large national computing centres to smaller university clusters. HammerCloud was previously introduced with the goals of enabling virtual organisations (VO) and site-administrators to run validation tests of the site and software infrastructure in an automated or on-demand manner. The HammerCloud infrastructure has been constantly improved to support the addition of new test workflows. These new workflows comprise validation and integration of the new ATLAS workload and data management systems JEDI and Rucio or the development and tests of new storage access protocols like HTTP/WebDAV using Davix and aria2c. Results of the continuous monitoring of site performances in functional and site stress tests are displayed in newly developed views on the HammerCloud webpages for site and VO administrators. We report on the development, optimisation and results of the various components in the HammerCloud framework.