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<== Date ==> <== Thread ==>

Subject: unable to see epics variables
From: James F Ross <james.falconer.ross@gmail.com>
To: EPICS Tech Talk <Tech-talk@aps.anl.gov>
Date: Thu, 27 Dec 2012 10:50:52 -0800
Hello everyone,
I am not sure if this is an epics problem or not, but if anyone has any insight I would appreciate the help.  The error is the following:

$> caget fgt:status
CAC: Unable to connect because "No route to host"
CA.Client.Exception...............................................
    Warning: "Virtual circuit disconnect"
    Context: "softioc3.starp.bnl.gov:52008"
    Source File: ../cac.cpp line 1214
    Current Time: Thu Dec 27 2012 13:44:42.760798000
..................................................................
cagChannel connect timed out: 'fgt:status' not found.

I have been unable to find anything blocking a route to the host, and I can ping the host from the machine I am trying the caget on. Historically this has been caused by firewall issues, but even with all security (iptables and selinux) disabled I still get this problem.  Is there anything epics related that can cause this issue?  Something that isn't running but should be in order to allow the command caget to connect? 

It would be helpful to know exactly how caget looks over a network.  Is there a particular port it uses?  Does it look via rsh or NFS or some other connection type that may not be working for some reason?

Three machines spontaneously started having this issue which points to it being a network problem and thus nothing tech talk can help me with, but the fact that I can ping each host from the three machines having problems indicates that there is in fact a network connection and may be epics related.

Thanks for the help,
James Ross

Replies:
RE: unable to see epics variables Mark Rivers

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