Re: Channelfinder Recsync Client: Limit records client side

["Johnson, Andrew N. via Tech-talk" <tech-talk at aps.anl.gov>]

We don't use reccaster in in the upgraded APS, but we have adopted the naming convention (from Python?) that record names which end in an underscore '_' are intended for internal use within the control system only, and shouldn't be used on any published display screens or by other clients. We haven't gone so far as to remove them from the lists of PV names that our name-servers recognize (which would limit access to other IOCs or clients running in the same subnet), but that would be our equivalent to what Daniel is asking for.

 

I would think it should be relatively easy to filter out matching names like that inside the reccaster code, whereas searching for an info tag in each record would probably slow up the reccaster somewhat at start-up. The use of a naming convention also makes it easier to see when someone is using a PV name that they aren't supposed to be connecting to.

 

- Andrew

 

-- 

Complexity comes for free, Simplicity you have to work for.

 

 

On 5/9/24, 5:25 PM, "Tech-talk" <tech-talk-bounces at aps.anl.gov> wrote:

 

Hi Daniel,

 

I am not aware of any field like that but it does sound like an interesting idea. Another place you could filter PVs before they reach channel finder is on the recceiver side, in the cfstore plugin.

 

Best,

Tynan

 

On Wed, May 8, 2024 at 6:32 PM Kenner, Daniel Craig via Tech-talk <tech-talk at aps.anl.gov> wrote:

Hello all,

 

I have been working with LLNL on an EPICs application. The Channelfinder has critical functionality we would like to take advantage of, but one of the hurdles is limiting what records are allowed to be published through the reccaster module. I don’t want the end user to have visibility into every single record an IOC has, but I am unclear if the support module offers this functionality. Is there some field I can add to relevant records so that reccaster only publishes those PV’s?

 

Thank you for your time,

Daniel Kenner

Computer Engineer

Lawrence Livermore National Laboratory

Phone: (925) 758-2607

Email: kenner2 at llnl.gov