Manoel,
You noticed that you said “I tried to reinstall OM”, well I don’t know about your installation, but for me, to install OpenMeetings I have to start with a full clean, “never been installed before”, set of OpenMeetings files, and a clean empty database. Only then have I succeeded in getting OpenMeetings to install and to be able to run http://myIP:5080/openmeetings/install to complete the installation processes. I have read where others has said that you can restore certain files or settings and perform a reinstall, but I do not know how this is achieved. I can only suggest you read the documentation (see below URL) that most closely corresponds to your server and follow each of the steps, checking an verifying along the way. https://cwiki.apache.org/confluence/display/OPENMEETINGS/Tutorials+related+to+OpenMeetings If you believe that all is OK and should work, the most notable things to check are, 1) are file permissions on folders and their sub folders correct ? (i.e. chown -R nobody /usr/lib/red5m, chmod +x /usr/lib/red5/red5.sh) ) and if from your OpenMeetings server, you can log into your openmeetings database from the command line using the openmeetings userid and password? If these two are correct, usually a clean OpenMeetings set of files will start when you run ./red5.sh from the /usr/lib/red5 folder, and then the URL http://myIP:5080/openmeetings/install will load the installation page, allowing the completion of the installation process. I can only suggest, a) drop the openemeetings database the recreate the openmeetings database (without tables), then delete/move the existing /usr/lib/red5 folder, and get a clean, never been installed before set of OpenMeetings files (i.e. in /usr/lib/red5 and then set file permissions and cd /usr/lib/red5 and run ./red5.sh and then try URL http://myIP:5080/openmeetings/install once again. Of course there are other ways, but this way I know will work if the server has all the supporting packages (as per instructions) installed . Thanks, George Kirkham From: Manoel Campos da Silva Filho [mailto:manoelcam...@gmail.com] Sent: Wednesday, 17 October 2012 10:07 PM To: openmeetings-user@incubator.apache.org Subject: Re: OpenMeetings 2 doen't works after installation: The connection to the server has been lost Have you first installed OpenMeetings via the URL http://myIP:5080/openmeetings/install ? And did this succeed ? Yes. Yes. I alredy installed OM at a test server and works fine. Also is your database on this server a new empty database called “openmeetings” ? (so that the install process can create the database tables are required). Yes, I copied postgresql_persistence.xml to persistence.xml and configured the database, login and password. My DB was empty before installation and after that, the tables were created. I tried to reinstall OM, excluding install.xml, dropping and recreating database but it doesn't work. I receive the error message "org.apache.openjpa.persistence.PersistenceException: The column index is out of range: 2, number of columns: 1." when I try to login at OM. Thanks, George. From: Manoel Campos da Silva Filho [mailto:manoelcam...@gmail.com] Sent: Wednesday, 17 October 2012 10:37 AM To: openmeetings-user@incubator.apache.org Subject: OpenMeetings 2 doen't works after installation: The connection to the server has been lost Hello. I'm using OpenMeetings 2.0.0.r1361497-14-07-2012_1108 in a Ubuntu Server 11.10 with Sun Java JRE 1.6.0_30 installed. I installed all the pre-requisites. I followed the 3 steps installation instructions <http://incubator.apache.org/openmeetings/installation.html> (using the nobody account) and the OM was installed. I started the red5.sh script with this steps: $ cd /usr/lib/red5/ $ ./red5.sh My DB is a postgresql 9.1 with utf8 enconding. I alredy installed the OM at a test server. Now, when I try to install the OM at a production Server, with the same software configuration, it doesn't work. When I try to start openmeetings at http://myIP:5080/ <http://myip:5080/> I receive the "The connection to the server has been lost" error At openmeetings.log I get the error below (the log is attached): ERROR 10-16 20:31:05.310 LdapConfigDaoImpl.java 192920 239 org.openmeetings.app.data.basic.dao.LdapConfigDaoImpl [NioProcessor-2] - [getActiveLdapConfigs] org.apache.openjpa.persistence.PersistenceException: The column index is out of range: 2, number of columns: 1. at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4918) ~[openjpa-bundle-2.2.0.jar:2.2.0] at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4878) ~[openjpa-bundle-2.2.0.jar:2.2.0] at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:136) ~[openjpa-bundle-2.2.0.jar:2.2.0] at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:118) ~[openjpa-bundle-2.2.0.jar:2.2.0] at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:70) ~[openjpa-bundle-2.2.0.jar:2.2.0] at org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.handleCheckedException(SelectResultObjectProvider.java:155) Thank you.