ICALEPCS2011 - List of Authors (Singleton, S.J.)

Paper

Title

Page

Algorithms and Data Structures for the EPICS Channel Archiver

94

J. Rowland, M.T. Heron, M.A. Leech, S.J. Singleton, K. Vijayan
Diamond, Oxfordshire, United Kingdom

Diamond Light Source records 3GB of process data per day and has a 15TB archive on line with the EPICS Channel Archiver. This paper describes recent modifications to the software to improve performance and usability. The file-size limit on the R-Tree index has been removed, allowing all archived data to be searchable from one index. A decimation system works directly on compressed archives from a backup server and produces multi-rate reduced data with minimum and maximum values to support time efficient summary reporting and range queries. The XMLRPC interface has been extended to provide binary data transfer to clients needing large amounts of raw data.

Poster MOPKN006 [0.133 MB]

Paper	Title	Page
MOPKN006	Algorithms and Data Structures for the EPICS Channel Archiver	94
	J. Rowland, M.T. Heron, M.A. Leech, S.J. Singleton, K. Vijayan Diamond, Oxfordshire, United Kingdom
	Diamond Light Source records 3GB of process data per day and has a 15TB archive on line with the EPICS Channel Archiver. This paper describes recent modifications to the software to improve performance and usability. The file-size limit on the R-Tree index has been removed, allowing all archived data to be searchable from one index. A decimation system works directly on compressed archives from a backup server and produces multi-rate reduced data with minimum and maximum values to support time efficient summary reporting and range queries. The XMLRPC interface has been extended to provide binary data transfer to clients needing large amounts of raw data.
	Poster MOPKN006 [0.133 MB]