ECCE localhost

Aqua_Regia · 11-05-2011, 10:22 AM

I have been trying to setup Extensible Computational Chemistry Environment server to use localhost as the server but when I go to run the ECCE program/application it can not find the server no matter what port I use. I can access the localhost ecce server using firefox by typing in "localhost:8080" to the url bar which pulls up some ECCE help documentation. Is this a matter of allowing ports on a firewall even if the program and server are running on localhost or something else?

catkin · 11-07-2011, 02:25 AM

I am replying not because I know anything about ECCE but because nobody else has and the thread is getting old ...

Do you have any iptables settings that might be acting as a firewall? You can list them with iptables --list-rules. If none are set the output is:

Code:

-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT

Which Linux distro are you using? Does it and the hardware match ECCE's requirements? Did you follow the "ECCE 6.0 Installation and Administration" procedure? Were there any error messages? When you run the ecce command, what happens? Have you looked at the Apache logs, perhaps in the /var/log/apache2 directory?

Aqua_Regia · 11-08-2011, 08:34 AM

Thanks for the reply. I'm using Fedora 15 and my hardware matches ECCE's system requirements. I have been following the Installation pdf provided on their website but couldn't find any answers there. In regards to the firewall I disabled it entirely using '/sbin/service iptables stop' but still received the same error. Here is the error I'm seeing.

Code:

[wcucluster.master@wcucluster logs]$ ecce
Starting ECCE ... please wait
Nov 8, 2011 9:29:00 AM org.apache.activemq.util.IdGenerator <clinit>
WARNING: could not generate unique stub
java.net.UnknownHostException: wcucluster.master: wcucluster.master
	at java.net.InetAddress.getLocalHost(Unknown Source)
	at org.apache.activemq.util.IdGenerator.<clinit>(IdGenerator.java:51)
	at org.apache.activemq.ActiveMQConnection.<clinit>(ActiveMQConnection.java:108)
	at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:283)
	at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:251)
	at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:222)
	at org.apache.activemq.ActiveMQConnectionFactory.createTopicConnection(ActiveMQConnectionFactory.java:200)
	at gov.pnnl.emsl.ecce.jms.JMSDispatcher.createConnection(JMSDispatcher.java:1146)
	at gov.pnnl.emsl.ecce.jms.JMSDispatcher.<init>(JMSDispatcher.java:273)
	at gov.pnnl.emsl.ecce.jms.JMSDispatcher.main(JMSDispatcher.java:1181)
javax.jms.JMSException: Could not connect to broker URL: tcp://localhost:8088. Reason: java.net.UnknownHostException: wcucluster.master: wcucluster.master

  ERROR: The ECCE application software cannot
  establish a connection to the ECCE Server
  at this time.

  Please contact your ECCE administrator to check
  that the ECCE Server is running and that the
  ECCE application software configuration file
  '/home/wcucluster.master/ECCE/ecce-v6.0/apps/siteconfig/DataServers'
  contains the correct URL for your ECCE Server.

To me it looks like the apache and activemq servers/services are not running. Looking at the Install guide all they mention is how to verify if the Apache/activemq servers are running.

Quote:

After starting the server, you may verify that the Apache httpd daemon and child httpd processes are
running, as well as the ActiveMQ server:
prompt% ls /myfiles/ecce-v6.0/server/apache/logs/httpd.pid
prompt% ps -ef | grep “java” | grep “Dorg.apache”

The file they wanted me to look for exists on my system and when I run the last command I don't receive any output in the terminal.

catkin · 11-08-2011, 09:40 AM

It looks as if the problem may be ECCE-specific in which case I can't help. You could try mailing ecce-support@emsl.pnl.gov.

Unfortunately IDK Fedora either. I do know a little about Apache though ...

Regards the Apache check, the existence of /myfiles/ecce-v6.0/server/apache/logs/httpd.pid is not a robust check and the location for the PID file is unconventional. A more robust check would be ps -ef | grep httpd | grep -v grep

Do you know where the Apache configuration files are? Or how it is started? There may be some clues there.