Experimental Physics and
Industrial Control System

Sean Leavey - STFC UKRI via Tech-talk <tech-talk at aps.anl.gov> · Thu, 18 Aug 2022 19:09:16 +0000

Hi Michael,

> fyi.  Archiver Appliance can be scaled down.  I have AA
> running on a raspberry pi 3 in my apartment recording ~10 PVs.

Good to know it can work on that scale!

>> wrt. "I could probably write one in 20 lines of ..."

> I'm sure you could, and many have.  As with most software,
> getting a 90% solution is easy.  The trouble is that last
> 10% consists of things which aren't apparent.  eg. recording
> disconnect/reconnect, data type change, and various problems
> with timestamps.  Events which can, and imo. eventually will,
> turn up in every installation no matter the size.

Indeed, I guess I was hoping someone else had already done what you say, started with 20 lines of Python and fixed the edge cases you mention, without it becoming a behemoth. But you've convinced me to give Archiver Appliance a go with what you said about the Pis!

Cheers,
Sean
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System