EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
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  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 
<== Date ==> <== Thread ==>
Subject: RE: Waveform data in a data storage system
From: Žiga Oven via Tech-talk <tech-talk at aps.anl.gov>
To: 刘晓敏 <liuxiaomin at sari.ac.cn>, "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Thu, 19 Oct 2023 07:47:45 +0000

Hi,

 

Archiver appliance uses the default value of the EPICS_CA_MAX_ARRAY_BYTES of 16342.
This means that any array that is bigger that 16kb will not be archived.

 

Please check that your archiver has correct CA configuration.

 

Best regards,

 

Žiga


 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of ??? via Tech-talk
Sent: Tuesday, October 17, 2023 5:14 AM
To: tech-talk at aps.anl.gov
Subject: Waveform data in a data storage system

 

Hi,

I was trying to store some waveform data using The EPICS Archiver Appliance, but the storage failed.

The PV names of the waveform data are as follows:

AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM

The error message is as follows:

61369 [JCA Command Thread] ERROR org.epics.archiverappliance.engine.pv.EPICS_V3_PV  - While processing a handleConnected for AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM.SCAN; the channel is not in a connected state.

63336 [PVNameDispatcherPVNameEvents 11] DEBUG org.epics.archiverappliance.engine.metadata.MetaGet  - Got value for NAME$ for pv AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM with timestamp Oct/13/2023 14:39:23 +08:00

61373 [PVNameDispatcherPVNameEvents 7] DEBUG org.epics.archiverappliance.engine.pv.EPICS_V3_PV  - Connection changed for pv AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM

61773 [JCA Command Thread] ERROR org.epics.archiverappliance.engine.pv.EPICS_V3_PV  - When trying to establish a subscription, there is already a subscription for AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM

61773 [JCA Command Thread] ERROR org.epics.archiverappliance.engine.pv.EPICS_V3_PV  - When trying to establish a subscription, there is already a subscription for AC-LA-INJ1-BI:SBPM02-E:CH4_RAW_WAVEFORM

I don't think there is a problem with the data storage system, other types of data can be stored normally. The server can also obtain data normally, what causes storage failure?

References:
Waveform data in a data storage system 刘晓敏 via Tech-talk
Navigate by Date:
Prev: Re: MBBO IVOA has different behavior in IOC shell and Unix terminal Marco A. Barra Montevechi Filho via Tech-talk
Next: field transform is not found Tran, Phi Dung 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: Waveform data in a data storage system 刘晓敏 via Tech-talk
Next: RE: Waveform data in a data storage system Sky Brewer 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 
ANJ, 19 Oct 2023 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·