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Title: CORAL Server and CORAL Server Proxy: Scalable Access to Relational Databases from CORAL Applications

Abstract

The CORAL software is widely used at CERN by the LHC experiments to access the data they store on relational databases, such as Oracle. Two new components have recently been added to implement a model involving a middle tier 'CORAL server' deployed close to the database and a tree of 'CORAL server proxies', providing data caching and multiplexing, deployed close to the client. A first implementation of the two new components, released in the summer 2009, is now deployed in the ATLAS online system to read the data needed by the High Level Trigger, allowing the configuration of a farm of several thousand processes. This paper reviews the architecture of the software, its development status and its usage in ATLAS.

Authors:
; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1038700
Report Number(s):
SLAC-REPRINT-2012-039
TRN: US201208%%777
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Journal Name:
Journal of Physics: Conference Series
Additional Journal Information:
Journal Volume: 331; Journal Issue: 4; Conference: Prepared for 18th International Conference on Computing in High Energuy and Nuclear Physics (CHEP 2010), Taipei, Taiwan, 18-22 Oct 2010
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER ARCHITECTURE; CERN; COMPUTERS; COMPUTER CODES; CONFIGURATION; IMPLEMENTATION; Computing, Instrumentation,COMP, INST

Citation Formats

Valassi, A, /CERN, Bartoldus, R, /SLAC, Kalkhof, A, /CERN, Salnikov, A, /SLAC, Wache, M, and /Mainz U., Inst. Phys. CORAL Server and CORAL Server Proxy: Scalable Access to Relational Databases from CORAL Applications. United States: N. p., 2012. Web.
Valassi, A, /CERN, Bartoldus, R, /SLAC, Kalkhof, A, /CERN, Salnikov, A, /SLAC, Wache, M, & /Mainz U., Inst. Phys. CORAL Server and CORAL Server Proxy: Scalable Access to Relational Databases from CORAL Applications. United States.
Valassi, A, /CERN, Bartoldus, R, /SLAC, Kalkhof, A, /CERN, Salnikov, A, /SLAC, Wache, M, and /Mainz U., Inst. Phys. 2012. "CORAL Server and CORAL Server Proxy: Scalable Access to Relational Databases from CORAL Applications". United States.
@article{osti_1038700,
title = {CORAL Server and CORAL Server Proxy: Scalable Access to Relational Databases from CORAL Applications},
author = {Valassi, A and /CERN and Bartoldus, R and /SLAC and Kalkhof, A and /CERN and Salnikov, A and /SLAC and Wache, M and /Mainz U., Inst. Phys.},
abstractNote = {The CORAL software is widely used at CERN by the LHC experiments to access the data they store on relational databases, such as Oracle. Two new components have recently been added to implement a model involving a middle tier 'CORAL server' deployed close to the database and a tree of 'CORAL server proxies', providing data caching and multiplexing, deployed close to the client. A first implementation of the two new components, released in the summer 2009, is now deployed in the ATLAS online system to read the data needed by the High Level Trigger, allowing the configuration of a farm of several thousand processes. This paper reviews the architecture of the software, its development status and its usage in ATLAS.},
doi = {},
url = {https://www.osti.gov/biblio/1038700}, journal = {Journal of Physics: Conference Series},
number = 4,
volume = 331,
place = {United States},
year = {Thu Apr 19 00:00:00 EDT 2012},
month = {Thu Apr 19 00:00:00 EDT 2012}
}

Conference:
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