Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Tue, 27 Apr 2021 07:35:21 -0700

On 4/27/21 6:58 AM, Stainer Tom via Tech-talk wrote:
...
> If I may continue with your analogy and the case of the web, then in this context there are web crawlers that exist for the sole purpose to index web sites and to see what is out there on the web (whether advertised or not). Similarly, I would like to know how one would go about making such a crawler for PVA, which could or could not be used in combination with a central registry. At this point, I guess it is more curiosity than anything else to know if anyone has developed such a crawler already, and what implications this has in terms of network traffic…

Maybe an opportune time to mention the ChannelFinder directory service,

https://channelfinder.readthedocs.io/en/latest/

and the related recsync support module which can _push_ PV lists to it.
This overcomes some of the latency issues inherent in a crawler, so the
directory stays "fresh".

https://github.com/ChannelFinder/recsync

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System