[Paraview] Apache Front-end not working: java.net.ConnectException: Connection refused

[kai liu]

Hi

I complied offscreen OSMesa ParaViewWeb, but I do not know how to use Apache as front-end. I have followed both "How to use Apache as Frotn-end" and "How to set up an Amazon EC2 AMI instance to run ParaViewWeb" guides, but I could not get it to work. 

I run the command "java -jar JettySessionManager-Server-1.1.jar pw-config.properties", and then I input the link  http://localhost:9000/apps/Visualizer on the browser. I always got the following error:

2014-04-16 23:45:23.355:INFO:oejs.Server:jetty-8.y.z-SNAPSHOT
2014-04-16 23:45:23.487:INFO:oejs.AbstractConnector:Started SelectChannelConnector at 0.0.0.0:9000
Apr 16, 2014 11:45:37 PM com.kitware.paraviewweb.websocket.WebSocketForwarder onOpen INFO: null
java.util.concurrent.ExecutionException: java.net.ConnectException: Connection refused
	at org.eclipse.jetty.websocket.WebSocketClient$WebSocketFuture.get(WebSocketClient.java:569)
	at org.eclipse.jetty.websocket.WebSocketClient$WebSocketFuture.get(WebSocketClient.java:372)
	at com.kitware.paraviewweb.websocket.WebSocketForwarder.onOpen(WebSocketForwarder.java:54)
..........................
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  I feel I did not missed any steps while following the  "How to set up an Amazon EC2 AMI instance to run ParaViewWeb" guide, but I always get the above error when I run it. I use apache-2.4.9 since I could not find apache-2.4.7 online. I attached pw-config.properties.  I run everything on Localhost first because I do not want to screw up my Amazon EC2 instance. 


Is it okay to put ServerName 127.0.1.1 instead of my instance DNS name since I am running on localhost? Thank you!

<VirtualHost*:80>ServerName ec2-XXX-XXX-XXX-XXX.compute-1.amazonaws.com ServerAdmin webmaster at example-host.example.com DocumentRoot "/var/www/pvweb-deploy/www" ErrorLog "logs/pv-error_log" CustomLog "logs/pv-access_log" common ProxyPass /paraview http://localhost:9000/paraview # Turn on the rewrite engine RewriteEngine On # This is the path the mapping file Jetty creates RewriteMap session-to-port txt:/opt/apache-2.4.7/pv-mapping-file/mapping.txt # This is the rewrite condition. Look for anything with a sessionId= in the query part of the URL and capture the value to use below. RewriteCond %{QUERY_STRING}     ^sessionId=(.*)$ [NC] # This does the rewrite using the mapping file and the sessionId RewriteRule    ^/proxy.*$  ws://${session-to-port:%1}/ws  [P] <Directory"/var/www/pvweb-deploy/www">Options Indexes FollowSymLinks Order allow,deny Allow from all AllowOverride None Require all granted </Directory></VirtualHost>
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