Experimental Physics and
Industrial Control System

Jeong Han Lee via Tech-talk <[email protected]> · Mon, 29 Apr 2019 21:38:52 +0200

Hi Andrew,

On 4/29/19 11:19 AM, Jeong Han Lee via Tech-talk wrote:

Is it possible to port or make patch files of this feature into the
existent 3.15.6?

The changes that Bruce is proposing could probably be applied to the
equivalent files in any EPICS Base release since about 3.14.3, although
you wouldn't be able to use the GNU Patch program to do that
automatically since the files have been moved around quite a bit and
there have been other changes to the sources that would confuse patch.

 Here is no problem, because I create patch files according to the

specific EPICS Base versions. Yes, I know that is pain, but only one

time pain I will have always.

Martin Konrad has suggested that this change be applied to the Base 3.15
branch instead of to 7.0, which I would agree to. It sounds like that
might be a popular idea.

  I didn't see his suggestion before. Yes, I also like his proposal.

  Thank you!

  Han

- Andrew

On 4/27/19 8:07 AM, Hill, Bruce via Tech-talk wrote:

Added dbLoadSuspendOnError iocsh variable.
Launchpad merge proposal is here:
https://code.launchpad.net/~bhill/epics-base/+git/epics-base/+merge/366606

Cheers,
- Bruce

On 4/15/19 11:44 AM, Mooney, Tim M. via Tech-talk wrote:

I've long wanted to give autosave the ability to retain PV values of
databases that loaded successfully in the past, but that failed or
were commented out during one or more reboots, so they can be
restored when the database next boots successfully.  I don't have
plans to do this soon, but it does seem a reasonable thing to do,
and not all that hard.

Tim Mooney ([email protected]) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

------------------------------------------------------------------------

*From:* [email protected]
<[email protected]> on behalf of Paduan Donadio, Marcio
via Tech-talk <[email protected]>
*Sent:* Monday, April 15, 2019 12:49 PM
*To:* [email protected]
*Subject:* Stopping IOC boot on failure to load database

Hello, all.

We are thinking about creating a function in EPICS base like
stopOnDbLoadErrorto be called before dbLoad* functions. The idea is
to freeze the IOC boot with a message on the IOC shell or to
completely abort, exiting. Alternatively, we could also place an
additional optional parameter to the dbLoad* functions to have the
same behavior.

What we intend with this is:

1.) bring the error to the attention of the responsible IOC engineer
and,

2.) stop corruption of Autosave files due to missing PVs.

Do you think it would be something valuable to be added in an
official EPICS release?

Thank you,

Márcio Paduan Donadio

Control Systems Engineer

SLAC

--
Bruce Hill
Member Technical Staff
SLAC National Accelerator Lab
2575 Sand Hill Road M/S 10
Menlo Park, CA  94025

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System