Experimental Physics and Industrial Control System
Hi,
Today the same script failed again. I didn’t see this coming, but Andrew’s comment to try more recent EPICS base actually helped. I’ve made sure to be able to reproduce the problem several times before trying pvget from EPICS 7.0.4.1 - remember, the same script runs fine several times and the randomly stops working, but then once I’m able to get it going once, it will continue to run fine afterwards.
After several attempts with pvget from 4.5 linked against CA from 3.14.12.6, the ’new’ pvget worked out of the box. I’m not sure whether that brings any more information or interest to the subject, since whatever the issue was seems to be solved in latest base. Thank you all for your replies and ideas.
— Klemen
> On Jul 22, 2021, at 5:25 PM, Johnson, Andrew N. <anj at anl.gov> wrote:
>
> Hi Klemen,
>
> On Jul 22, 2021, at 2:12 PM, Vodopivec, Klemen via Tech-talk <tech-talk at aps.anl.gov> wrote:
>>
>>> I read
>>> "pvget replaced caget, giving us two implementations that behave the same."
>>> as both "caget" and "pvget -p ca" were used with the same result.
>>
>> Correct, both caget and pvget were tried with the same effect. Both caget and pvget are compiled from the same 3.14.12.6 distribution, pvget is from PVAccess library version 4.5.
>
> I hate to say this to you, but 3.14.12.6 and EPICS V4 4.5.0 are both 5 years old now. We have fixed some issues in the CA client library since then, although not a huge number, and some problems in the PVA CA Provider interface as well which could be causing this. Thus you’re more likely to get interest from the core developers in helping to resolve the problem if you could use a {ca,pv}get tool from a much more recent EPICS release and demonstrate that the problem still exists (or even better, find that it goes away).
>
> - Andrew
>
- References:
- caget freezes the bash script Vodopivec, Klemen via Tech-talk
- Re: caget freezes the bash script J. Lewis Muir via Tech-talk
- Re: [EXTERNAL] Re: caget freezes the bash script Kasemir, Kay via Tech-talk
- Re: [EXTERNAL] Re: caget freezes the bash script J. Lewis Muir via Tech-talk
- Re: [EXTERNAL] Re: caget freezes the bash script Kasemir, Kay via Tech-talk
- Re: [EXTERNAL] caget freezes the bash script Vodopivec, Klemen via Tech-talk
- Re: [EXTERNAL] caget freezes the bash script Johnson, Andrew N. via Tech-talk
- Navigate by Date:
- Prev:
Re: synApps 6.1 conflicts with EPICS Base 7.0.6 Pete Jemian via Tech-talk
- Next:
Re: mbboDirect Bx fields don't update on alarm change Johnson, Andrew N. via Tech-talk
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
<2021>
2022
2023
2024
- Navigate by Thread:
- Prev:
Re: [EXTERNAL] caget freezes the bash script Johnson, Andrew N. via Tech-talk
- Next:
no rpc.h, ALH 网易邮件中心 via Tech-talk
- Index:
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
<2021>
2022
2023
2024