The problem I was having, and its resolution, is discussed in this tech-talk thread:
http://www.aps.anl.gov/epics/tech-talk/2013/msg00836.php
Mark
________________________________________
From: [email protected] [[email protected]] on behalf of Mark Rivers [[email protected]]
Sent: Thursday, June 27, 2013 6:21 PM
To: D Peter Siddons; [email protected]
Subject: RE: caget apparent timeout
That sounds like a problem I had recently. I tracked it down to a misconfigured DNS server that was not resolving the reverse DNS lookup, i.e. IP number to IP name.
Mark
________________________________________
From: [email protected] [[email protected]] on behalf of D Peter Siddons [[email protected]]
Sent: Thursday, June 27, 2013 4:14 PM
To: [email protected]
Subject: Re: caget apparent timeout
Hi Andrew,
EPICS 3.14.12.2
Ubuntu 12.04.2
Pete.
On 06/27/2013 01:13 PM, Andrew Johnson wrote:
Hi Peter,
On 2013-06-27 D Peter Siddons wrote:
Occasionally, I need to check or change a PV, for which I use the
caget and caput command-line utilities. The operation (put or get) is
executed immediately, but then the PC waits for several seconds before
the cursor is returned. Does anyone know what is causing this? It feels
like a network timeout, but all I have is a PC and an IOC with a
crossover cable between. Anyone know the fix?
What version of EPICS were your caget/caput programs built against, and what
is the Linux version they're running on? We used to see delays like this at
process shutdown while the atexit() routines were being run, but they were
cleaned up quite a few releases ago.
- Andrew
--
D. Peter Siddons
Detector Development Group Leader
Bldg. 535B
Photon Sciences Directorate,
Brookhaven National Laboratory
Upton, NY 11973
email: [email protected]
Phone: (631) 344-2738.
