Keyword: CORBA
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MOBPL02 TANGO Kernel Development Status TANGO, ion, controls, device-server 27
 
  • R. Bourtembourg, J.M. Chaize, T.M. Coutinho, A. Götz, V. Michel, J.L. Pons, E.T. Taurel, P.V. Verdier
    ESRF, Grenoble, France
  • G. Abeillé, N. Leclercq
    SOLEIL, Gif-sur-Yvette, France
  • S. Gara
    NEXEYA Systems, La Couronne, France
  • P.P. Goryl
    3controls, Kraków, Poland
  • I.A. Khokhriakov
    HZG, Geesthacht, Germany
  • G.R. Mant
    STFC/DL, Daresbury, Warrington, Cheshire, United Kingdom
  • J. Moldes
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  • B. Plötzeneder
    ELI-BEAMS, Prague, Czech Republic
  
  Funding: On behalf of the TANGO Controls Collaboration
The TANGO Controls Framework continues to improve. This paper will describe how TANGO kernel development has evolved since the last ICALEPCS conference. TANGO kernel projects source code repositories have been transferred from subversion on Sourceforge.net to git on GitHub.com. Continuous integration with Travis CI and the GitHub pull request mechanism should foster external contributions. Thanks to the TANGO collaboration contract, parts of the kernel development and documentation have been sub-contracted to companies specialized in TANGO. The involvement of the TANGO community helped to define the roadmap which will be presented in this paper and also led to the introduction of Long Term Support versions. The paper will present how the kernel is evolving to support pluggable protocols - the main new feature of the next major version of TANGO. 		 
video icon Talk as video stream: https://youtu.be/t6L6hj0rNDc  
slides icon Slides MOBPL02 [5.754 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOBPL02  
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MOBPL05 How to Design & Implement a Modern Communication Middleware Based on ZeroMQ ion, controls, framework, interface 45
 
  • J. Lauener, W. Sliwinski
    CERN, Geneva, Switzerland
  
  In 2011, CERN's Controls Middleware (CMW) team started a new project aiming to design and implement a new generation equipment access framework using modern, open-source products. After reviewing several communication libraries [1], ZeroMQ [2] was chosen as the transport layer for the new communication framework. The main design principles were: scalability, flexibility, easy to use and maintain. Several core ZeroMQ patterns were employed in order to provide reliable, asynchronous communication and dispatching of messages. The new product was implemented in Java and C++ for client and server side. It is the core middleware framework to control all CERN accelerators and the future GSI FAIR [3] complex. This paper presents the overall framework architecture; choices and lessons learnt while designing a scalable solution; challenges faced when designing a common API for two languages (Java and C++) and operational experience from using the new solution at CERN for 3 years. The lessons learnt and observations made can be applied to any modern software library responsible for fast, reliable, scalable communication and processing of many concurrent requests.
[1] A. Dworak et al., "Middleware trends and market leaders 2011", ICALEPCS 2011.
[2] ZeroMQ, http://zeromq.org
[3] V. Rapp et al., "Controls Middleware for FAIR", PCaPAC 2014.
 		 
video icon Talk as video stream: https://youtu.be/b4AoU3Vdlko  
slides icon Slides MOBPL05 [0.205 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOBPL05  
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