The ATLAS Wide-Range Database and Application Monitoring
European Organization for Nuclear Research (CERN)
2 Université Paris-Saclay, IRFU/CEA (FR)
Published online: 17 September 2019
In HEP experiments at LHC the database applications often become complex, reflecting the increasingly demanding requirements of the researchers. The ATLAS experiment has several Oracle DB clusters with over 216 database schemes each with its own set of database objects. To effectively monitor them, we designed a modern and portable application with exceptionally good characteristics. Some of them include: A concise view of the most important DB metrics; a list of top SQL statements based on CPU, executions, block reads, etc.; volume growth plots per schema and DB object type; a database jobs section with signalization for failures; and in-depth analysis in case of row-lock contention or DB sessions.
© The Authors, published by EDP Sciences, 2019
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