We have Opinio 6.04 Enterprise edition with SQL Server 2000 and we've been running some load testing software on a pretty simple survey. Results look very good but about an hour into testing we get this message 'The connection with the server was unexpectedly closed while writing the request.' However, the Opinio log files show no errors at that time.
Our logging options in log4j.properties are set to 'info'
Any ideas? Or do you think all is ok but maybe our load testing software is the problem?
I'm not familiar with the error, but the problem might be the limit in number of database connections.
In the file opinio/WEB-INF/database.properties there is a property named "objectplanet.persistence.maxConnections". You might need to set it to a bigger value under heavy load testing (reastart is needed after change).