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

Subject: Another gateway question
From: "Kevin Tsubota" <ktsubota@keck.hawaii.edu>
To: <tech-talk@aps.anl.gov>
Date: Tue, 24 May 2011 07:46:44 -1000

I have another gateway issue, this time its legit J


My EPICS clients (caget, caput, camonitor and guis) can access my PVs behind my gateway (R3.14.9).  However, I have a MVME2304 running VxWorks 5.3.1 and EPICS R3.13.10 and it’s having issues with the gateway, basically its not connecting.  Before I added the gateway, it was directly accessing the channels in question via EPICS_CA_ADDR_LIST and it didn’t have any issues.

 

When the vxworks user doesn’t have write access in the gateway I get the following output for the channels behind the gateway:

( I cleaned up the output by removing the good channels and you can ignore the not connected ones).

 

########################################################################

 

no write access ‘dbcar‘ summary:

 

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bpsd:lsshutCmd.OUT k1:ao:ls:shutterCmd

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bto:btoTrack.OUT k1:ao:ls:ss:btoperm nNoWrite 605

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bpsd:lightOnPsd.INPB k1:ao:ls:ss:PsdSum nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bpsd:lsPropSt.INPA k1:ao:ls:ss:LaserOn nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bpsd:lsPropSt.INPB k1:ao:ls:ss:LShutOpen nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bto:pntState.INPA k1:ao:ls:ss:OnSky nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:tm5psd:lsPropSt.INPA k1:ao:ls:ss:LaserOn nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:tm5psd:lsPropSt.INPB k1:ao:ls:ss:LShutOpen nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:bpsd:threshSel.NVL k1:ao:ls:ss:FdMirState nNoWrite 0

    connected k1laserserver:5064 no_read_access no_write_access k1:ao:ls:tm5psd:threshSel.NVL k1:ao:ls:ss:FdMirState nNoWrite 0

 

 

ncalinks 137 not connected 7 no_read_access 10 no_write_access 10

 nDisconnect 0 nNoWrite 605

 

 

########################################################################

 When giving read/write access to the vxworks user, I get the following errors and a different ‘dbcar’ output:

 

 

read/write access dbcar summary:

 

dbCa:exceptionCallback stat "Network connection lost" channel "unknown" context "k1laserserver:5064"

 nativeType DBR_invalid requestType DBR_invalid nativeCount 0 requestCount 0 noReadAccess noWriteAccess

May 23, 2011 17:13:34.846100273

 

dbCa:exceptionCallback stat "Network connection lost" channel "unknown" context "k1laserserver:5064"

 nativeType DBR_invalid requestType DBR_invalid nativeCount 0 requestCount 0 noReadAccess noWriteAccess

 

    connected k1laserserver:5064 k1:ao:ls:bpsd:lsshutCmd.OUT k1:ao:ls:shutterCmd nDisconnect 2

    connected k1laserserver:5064 k1:ao:ls:bto:btoTrack.OUT k1:ao:ls:ss:btoperm nDisconnect 2 nNoWrite 2668

    connected k1laserserver:5064 k1:ao:ls:bpsd:lightOnPsd.INPB k1:ao:ls:ss:PsdSum nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:bpsd:lsPropSt.INPA k1:ao:ls:ss:LaserOn nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:bpsd:lsPropSt.INPB k1:ao:ls:ss:LShutOpen nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:bto:pntState.INPA k1:ao:ls:ss:OnSky nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:tm5psd:lsPropSt.INPA k1:ao:ls:ss:LaserOn nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:tm5psd:lsPropSt.INPB k1:ao:ls:ss:LShutOpen nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:bpsd:threshSel.NVL k1:ao:ls:ss:FdMirState nDisconnect 2 nNoWrite 0

    connected k1laserserver:5064 k1:ao:ls:tm5psd:threshSel.NVL k1:ao:ls:ss:FdMirState nDisconnect 2 nNoWrite 0

 

 

ncalinks 137 not connected 7 no_read_access 0 no_write_access 0

 nDisconnect 20 nNoWrite 2668

 

########################################################################

 

This crate is on a separate network but I have the EPICS_CA_ADDR_LIST set to find the gateway which is using the default EPICS_CA_SERVER_PORT.

 

I’ve also logged into my unix server as the vxworks user and it doesn’t have any problems accessing the gateway channels.

Only from vxworks.  Is it a vxworks / r3.13.x issue?

 

Any thoughts on this would be appreciated.


Mahalo!

Kevin Tsubota

WM Keck Observatory

 


Replies:
RE: Another gateway question Jeff Hill

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