Speaker
Mr
Tim Holch
(Humboldt University Berlin)
Description
Data acquisition (DAQ) and control systems for arrays of Cherenkov telescopes comprise
hundreds of distributed software processes that implement the readout, control and monitoring
of various hardware devices. A multitude of different error conditions (malfunctioning
detector hardware, crashing software, failures of network and computing equipment etc.) can
occur and must be dealt with to ensure the speedy continuation of observations and an efficient use of dark time.
Flexible, fast and configurable methods for automatic and centralized error detection and recovery
are therefore highly desirable for the current generation of ground-based Cherenkov
experiments (H.E.S.S., MAGIC, VERITAS) and will be important for the Cherenkov Telescope Array
(CTA), a more complex observatory with O(80) telescopes. The contribution describes
a Java-based sofware demonstrator that was developed for the High Energy Stereoscopic System (H.E.S.S.)
and uses the complex event processing engine ESPER for error detection and recovery. The
software demonstrator analyses streams of error messages in the time domain and
aims to apply recovery procedures that reflect the knowledge of DAQ and detector experts.
| Registration number following "ICRC2015-I/" | 183 |
|---|---|
| Collaboration | -- not specified -- |
Primary author
Mr
Tim Holch
(Humboldt University Berlin)
Co-authors
Igor Oya
(DESY Zeuthen)
Dr
Matthias Fuessling
(DESY Zeuthen)
Mr
Michael Gajdus
(Humboldt University Berlin)
Dr
Peter Wegner
(DESY Zeuthen)
Mr
Philipp Wagner
(Humboldt University Berlin)
Mr
Thomas Murach
(Humboldt University Berlin)
Ullrich Schwanke
(Humboldt University Berlin)
