[ome-users] Help Needed. Unable to open Omero Clients.

[josh.moore at gmx.de]

Nandakumar, Sriramkumar writes:
 > Hi,

Hello Sriramkumar,

 > These are the messages displayed when starting the Omero server.  I
 > am seeing two STDERR messages (last two lines) and I am not sure
 > about this error.  But it is possible for me to see the Omero
 > server page in the screen without any problem.  ...

 > 2008-11-13 16:21:42,504 ERROR [ STDERR] ( main) Nov 13, 2008
 > 4:21:42 PM java.util.prefs.FileSystemPreferences$7 run WARNING:
 > Prefs file removed in background /root/.java/.userPrefs/prefs.xml
 > 2008-11-13 16:21:42,506 ERROR [ STDERR] ( main) Nov 13, 2008
 > 4:21:42 PM java.util.prefs.FileSystemPreferences$7 run WARNING:
 > Prefs file removed in background
 > /usr/lib/jvm/java-1.7.0-icedtea-1.7.0.0/jre/.systemPrefs/prefs.xml

These two "errors" come straight from Java and unfortunately, or
fortunately depending on how you look at it, have nothing to do with
OMERO. You can safely ignore them, but if you are interested you might
look at:

  http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4751177

for the original bug report. They are related to how Java is installed
on Linux.

 > 1) All the necessary ports such as 8080, 1098, 4444, 3873, 1099 are open
 > 2) Please find my  /etc/hosts
 > 
 > 127.0.0.1       localhost
 > 128.163.118.171 myomero.uky.edu myomero
 > 
 > where myomero is my hostname and myomero.uky.edu is in the format (hostname.network domain)
 > 
 > which is as mentioned in the Omero troubleshooting page.
 
If you can reach the server locally with insight and importer, but not
from another machine, then unless I'm mistaken this must be a
networking issue. Could you send us the full output of:

  netstat -na
  ifconfig -a

and perhaps a little information about your operating system. All of
this can be done off list if you prefer.

Best wishes,
~Josh.