Experimental Physics and
Industrial Control System

Pete Jemian <[email protected]> · Fri, 19 Jun 2009 12:26:21 -0500

The "multiple servers" response also happens when using VirtualBox to

run virtual guest operating systems (such as Linux within a WindowsXP

host like my laptop). The guest host is on the 10.0.x.x subnet.

VirtualBox sets up a "VirtualBox Host-Only Network" network connection.

Disable that connection and close VirtualBox to remove that problem, if

it presents itself.

Kay's solution might be an alternative resolution and I'll try it soon.

-- Pete

Kasemir, Kay wrote:

Hi:

Could it be that 10.30.53.51 localhost.localdomain is the
same computer?

I've seen cases on laptops, trying to access a soft IOC on the
same laptop, where I got multiple responses for the "real" IP
as well as 127.0.0.1.
The workaround was to set EPICS_CA_ADDR_LIST=127.0.0.1,
EPICS_CA_AUTO_ADDR_LIST=NO.

Thanks,
Kay

On 6/19/09 12:44 , "Dayle Kotturi" <[email protected]> wrote:

You have the PV loaded onto (at least) two nodes on the subnet
(or list of IP addresses in your EPICS_CA_ADDR_LIST) that edm is using.

Edm is behaving as it should, it's just getting two replies fo the
PV "X15U1:EH:DXP:Z".

This can also happen if you have a gateway and edm can "see" both the
source IOC's PV and the gateway's copy.

    Warning: "Identical process variable names on multiple servers"
    Context: "Channel: "X15U1:EH:DXP:Z.BUSY", Connecting to:
10.30.53.51:5064, Ignored: localhost.localdomain:5064"

--
----------------------------------------------------------
 Pete R. Jemian, Ph.D.                <[email protected]>
 Beam line Controls and Data Acquisition, Group Leader
 Advanced Photon Source,   Argonne National Laboratory
 Argonne, IL  60439                   630 - 252 - 3189
-----------------------------------------------------------
    Education is the one thing for which people
       are willing to pay yet not receive.
-----------------------------------------------------------

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System