please do not use hibernate.cfg.xml and hibernate.properties.
In the wiki you post, there is a xmlnode "|session-factory|" here we can
put the jndi-name as an attribute.
what a database are you using friend?
Am 05.04.2011 15:56, schrieb ????:
I tried to explore a bit the possibility of hibernate in tomcat, but
some things aren't that clear for me.
Before hitting the specific questions, please explain what is
hibernate in Tomcat, when do we want to use it, how do I use it
specifically with the JDBC connection pool (instead of the default
DBCP connection pool), and if misconfiguration of the hibernate can
cause disconnections of users on the application (that uses tomcat).
Now for 2 specific questions, if I may :]
1. in this article, its states that hibernate can be used for managing
the JDBC connection pool, but the strings are for c3p0 pool-
why is that?
can I use both c3p0 settings with Datasource pool (JNDI?) ?
2. Do I have to use hibernate.properties file, or can I rename it to
x.properties and still use the content of the hibernate settings?
Errors in my application when there are disconnections (between client
and app server, that caused by disconnections between app server and
DB), that leads me to think there's a problem with the hibernate settings:
* ERROR, hibernate.transaction.
JDBCTransaction JDBC begin failed javasql.SQLException: Invalid state,
the Connection object is closed.
* org.hibernate.util.JDBCExceptionReporter , Timeout: Pool empty.
Unable to fetch a connection in 10 seconds, none available[0 in use]
* WARN, hibernate.util.JDBCExceptionReporter SQL Error: 0, SQLState: 08S01
ERROR, hibernate.util.JDBCExceptionReporter I/O Error: DB server
ERROR, error processing request: exception.*appname*Error:
.hibernate.exception.JDBCConnectionException: Cannot open connection
Does my hunch is correct, and I need to change hibernate settings for
the disconnections to stop from occuring? or is it something else?
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