ICALEPCS2011 - List of Authors (Kasemir, K.-U.)

Paper

Title

Page

Hyperarchiver: An Epics Archiver Prototype Based on Hypertable

114

M.G. Giacchini, A. Andrighetto, G. Bassato, L.G. Giovannini, M. Montis, G.P. Prete, J.A. Vásquez
INFN/LNL, Legnaro (PD), Italy
J. Jugo
University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
K.-U. Kasemir
ORNL, Oak Ridge, Tennessee, USA
R. Lange
HZB, Berlin, Germany
R. Petkus
BNL, Upton, Long Island, New York, USA
M. del Campo
ESS-Bilbao, Zamudio, Spain

This work started in the context of NSLS2 project at Brookhaven National Laboratory. The NSLS2 control system foresees a very high number of PV variables and has strict requirements in terms of archiving/retrieving rate: our goal was to store 10K PV/sec and retrieve 4K PV/sec for a group of 4 signals. The HyperArchiver is an EPICS Archiver implementation engined by Hypertable, an open source database whose internal architecture is derived from Google's Big Table. We discuss the performance of HyperArchiver and present the results of some comparative tests.
HyperArchiver: http://www.lnl.infn.it/~epics/joomla/archiver.html
Epics: http://www.aps.anl.gov/epics/

Poster MOPKN012 [1.231 MB]

MOPKN025

Integrating the EPICS IOC Log into the CSS Message Log

151

K.-U. Kasemir, E. Danilova
ORNL, Oak Ridge, Tennessee, USA

Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy
The Experimental Physics and Industrial Control System (EPICS) includes the "IOCLogServer", a tool that logs error messages from front-end computers (Input/Output Controllers, IOCs) into a set of text files. Control System Studio (CSS) includes a distributed message logging system with relational database persistence and various log analysis tools. We implemented a log server that forwards IOC messages to the CSS log database, allowing several ways of monitoring and analyzing the IOC error messages.

Poster MOPKN025 [4.006 MB]

THBHAUST01

SNS Online Display Technologies for EPICS

1178

K.-U. Kasemir, X.H. Chen, E. Danilova, J.D. Purcell
ORNL, Oak Ridge, Tennessee, USA

Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy
The ubiquitousness of web clients from personal computers to cell phones results in a growing demand for web-based access to control system data. At the Oak Ridge National Laboratory Spallation Neutron Source (SNS) we have investigated different technical approaches to provide read access to data in the Experimental Physics and Industrial Control System (EPICS) for a wide variety of web client devices. We compare them in terms of requirements, performance and ease of maintenance.

Slides THBHAUST01 [3.040 MB]

Paper	Title	Page
MOPKN012	Hyperarchiver: An Epics Archiver Prototype Based on Hypertable	114
	M.G. Giacchini, A. Andrighetto, G. Bassato, L.G. Giovannini, M. Montis, G.P. Prete, J.A. Vásquez INFN/LNL, Legnaro (PD), Italy J. Jugo University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain K.-U. Kasemir ORNL, Oak Ridge, Tennessee, USA R. Lange HZB, Berlin, Germany R. Petkus BNL, Upton, Long Island, New York, USA M. del Campo ESS-Bilbao, Zamudio, Spain
	This work started in the context of NSLS2 project at Brookhaven National Laboratory. The NSLS2 control system foresees a very high number of PV variables and has strict requirements in terms of archiving/retrieving rate: our goal was to store 10K PV/sec and retrieve 4K PV/sec for a group of 4 signals. The HyperArchiver is an EPICS Archiver implementation engined by Hypertable, an open source database whose internal architecture is derived from Google's Big Table. We discuss the performance of HyperArchiver and present the results of some comparative tests. HyperArchiver: http://www.lnl.infn.it/~epics/joomla/archiver.html Epics: http://www.aps.anl.gov/epics/
	Poster MOPKN012 [1.231 MB]

MOPKN025	Integrating the EPICS IOC Log into the CSS Message Log	151
	K.-U. Kasemir, E. Danilova ORNL, Oak Ridge, Tennessee, USA
	Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy The Experimental Physics and Industrial Control System (EPICS) includes the "IOCLogServer", a tool that logs error messages from front-end computers (Input/Output Controllers, IOCs) into a set of text files. Control System Studio (CSS) includes a distributed message logging system with relational database persistence and various log analysis tools. We implemented a log server that forwards IOC messages to the CSS log database, allowing several ways of monitoring and analyzing the IOC error messages.
	Poster MOPKN025 [4.006 MB]

THBHAUST01	SNS Online Display Technologies for EPICS	1178
	K.-U. Kasemir, X.H. Chen, E. Danilova, J.D. Purcell ORNL, Oak Ridge, Tennessee, USA
	Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy The ubiquitousness of web clients from personal computers to cell phones results in a growing demand for web-based access to control system data. At the Oak Ridge National Laboratory Spallation Neutron Source (SNS) we have investigated different technical approaches to provide read access to data in the Experimental Physics and Industrial Control System (EPICS) for a wide variety of web client devices. We compare them in terms of requirements, performance and ease of maintenance.
	Slides THBHAUST01 [3.040 MB]