Experimental Physics and Industrial Control System
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All,
We are in the process of switching from the CSS Alarm Server which uses JMS to the Phoebus Alarm Server using Kafka.
For the old alarm server, I built a lightweight application which received server messages (via STOMP) and filtered them to pass along new alarms to SLACK. This is a stateless application, i.e. it doesn't try to maintain a list of PVs alarm states like the
CSS Alarm Display but just passes along notification of new alarms (filters out acknowledgements and transitions to OK). This has served us well - a notable exception being PVs which chatter in and out of alarm. Interested parties can then check alarms details
via CSS or web page. In the SLACK feed users may respond ("that was me doing x") or insert relevant data (plots, etc.)
I plan to do something similar for the new alarm server but wanted to inquire if anyone has already done something similar, has a Kafka consumer client which could be easily adapted, or has other ideas. The major constraint is that I don't have a lot of time
to work on this. 🙂
Thanks,
John Dobbins
Research Support Specialist
Cornell High Energy Synchrotron Source
Cornell University
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ANJ, 10 Dec 2020 |
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