Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
<== Date ==> <== Thread ==>

Subject: Channel Access disconnect/reconnect
From: Nick Rees <n.rees@jach.hawaii.edu>
To: tech-talk@aps.anl.gov
Date: Mon, 14 Apr 2003 12:44:54 -1000 (HST)
We currently have an application running under R3.13.4 in which there is a
tightly coupled 20 Hz loop between two systems. The CA client, running on
solaris, receives monitors at 20 Hz, and the does some calculations and
returns a demand to the CA server (running on a Heurikon baja68k board) -
for total of 40 CA transactions/second.

About 2-4 times a day Channel Access reports a disconnect in the solaris
client. However, as far as we can see with a network sniffer, the traffic
continues to flow in both directions - the monitors certainly keep on 
coming in since the code processes, and it needs the monitors to trigger 
this. Nothing appears in the iocLogServer log file.

Has this been seen by anyone else and/or has it bee fixed since R3.13.4? I 
have looked at the release notes up to R3.13.8 and find some things which 
are maybe close, but most seem to be IOC issues, not client ones.

Cheers,

-- 
Nick Rees

Head of Software and Computing Services
Joint Astronomy Centre                   Ph:         +1 (808) 961-3756
660 N. Aohoku Place                      Fax:        +1 (808) 961-6516
Hilo, HI.  96720                         Email: n.rees@jach.hawaii.edu


Replies:
RE: Channel Access disconnect/reconnect Jeff Hill

Navigate by Date:
Prev: Re: how to prevent ioc app from being built for both target and host? Till Straumann
Next: Re: recDynLink.c for R3.14.1 ? Tim Mooney
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
Navigate by Thread:
Prev: Re: epicsMutexLockWithTimeout not supported in 3.14.1 Kay-Uwe Kasemir
Next: RE: Channel Access disconnect/reconnect Jeff Hill
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  <20032004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
ANJ, 10 Aug 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·