Hi, I am worried that the properties I have set for my C3P0 connection pool are not being used correctly. Is there a way I can access the values that are set while the application is running and print them out: Println("Minimum connections"+connectionNumers.minimum); Thanks ...
I have a ResultSet object that I need to turn into an OracleResultSet so that I can call the getOPAQUE(String) method on it. I'm using c3p0 as my connection pool. The problem is that c3p0 wraps ResultSets in NewProxyResultSet objects. This shouldn't be a problem because I should just be able to call unwrap on the ResultSet like this: r...
can anyone explain on this 2 properties Q1. hibernate.cglib.use_reflection_optimizer ? what is the effect of setting to true and false Q2. hibernate.c3p0.max_statements . i read hibernate doc https://www.hibernate.org/214.html. it only mentioned default value is 0. I am using oracle10g, and i set to 100. but i want to know how to ...
I can't seem to get hibernate to use c3p0 for connection pooling, it says 12:30:35,038 INFO DriverManagerConnectionProvider:64 - Using Hibernate built-in connection pool (not for production use!) 12:30:35,038 INFO DriverManagerConnectionProvider:65 - Hibernate connection pool size: 20 Hibernate Config: <hibernate-configuration> <...
I'm trying to implement a solution with c3p0 for the first time. I understand how to initialize the connection pool and "checkout" a Connection from the pool as follows: ComboPooledDataSource cpds = new ComboPooledDataSource(); cpds.setDriverClass(driverClass); cpds.setJdbcUrl(url); cpds.setUser(username); cpds.setPassword(password); Co...
I'm trying to put C3P0 up & running. http://www.datanucleus.org/products/accessplatform/rdbms/c3p0.html I have These as Plugins (app runs fine): datanucleus-connectionpool-1.0.2.jar datanucleus-core-1.1.0.m3.jar datanucleus-enhancer-1.1.0.m1.jar datanucleus-rdbms-1.1.0.m3.jar I added (to the classpath): c3p0-0.9.1.2.jar And the par...
I have a JSP/Spring application using Hibernate/JPA connected to a database. I have an external program that check if the web server is up every 5 minutes. The program call a specific URL to check if the web server is still running. The server returns "SUCCESS". Obviously if the server is now, nothing is returned. The request timesout a...
I have a Tomcat and PostgreSQL installed on a server. I'm having a connection problem trying to connect from my servlet to PostgreSQL database using c3p0 pool. I can reach DB if I'm running Tomcat locally on my laptop. Also I can connect from server to DB using psql (i.e. command line sql utility). But when I'm trying to deploy my serv...
Hi, i just wonder how to configure a c3p0 instance in a web-server against a master/slaves configuration of mysql ? it means that one c3p0 instance may make connections to more than one mysql servers at a time. Thank you Lee ...
Does anybody have experience with using Oracle UCP under real production load? Does it handle database reconnects well? Are there any multi-threading issues? Has anybody compared it with C3P0 or Apache DBCP? ...
I've been trying to get a c3p0 db connection pool configured for Jetty, but I keep getting a ClassNotFoundException: 2010-03-14 19:32:12.028:WARN::Failed startup of context WebAppContext@fccada@fccada/phpMyAdmin,file:/usr/local/jetty/webapps/phpMyAdmin/,file:/usr/local/jetty/webapps/phpMyAdmin/ java.lang.ClassNotFoundException: org.mort...
I am doing profiling of my Java application and found some interesting statistics for a jdbc PreparedStatement call: Given below is the environment details: Database: Sybase SQL Anywhere 10.0.1 Driver: com.sybase.jdbc3.jdbc.SybDriver connection pool: c3p0 JRE: 1.6.0_05 The code in question is given below: try { ps = conn.prepareSt...
I am currently in the process of upgrading an application from Hibernate 3.2 to Hibernate 3.3. I though I'd stick with the default connection pool (Hibernate changed its default from Commons DBCP to c3p0) as I don't have any good reason to choose a non-default pool. At least non but having used DBCP before. The upgrade went pretty much...
Hi, I'm using Spring 3.0.2, Hibernate 3.5.0 and c3p0 0.9.1.2 and I'm having a ton of errors when it comes down to retrieving connections and commiting transactions. Here's my configuration of c3p0: <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${j...
I have a problem regarding the use of hibernate.properties and c3p0.properties. I am dependent upon an API. The API uses Hibernate. As such the API has it's own hibernate.properties and c3p0.properties file included within its delivery jar. I need to ensure I ignore these properties completely when instantiating my Hibernate SessionF...
Can anyone share the origin and meaning of the jdbc connection pool named c3p0. Was it inspired from star wars?. ...
I'm trying to get some code I was passed up and running. It appears to use the Hibernate framework. I've gotten past most of the errors tweaking the configuration, but this one has me dead stumped. It's trying to connect to two databases: gameapp and gamelog. Both exist. It seems to have issues connecting to gamelog, but none connecting...
Hi, I am not familiar at all with connection pooling library. I've just discovered it through this blog article) and I am not sure that I should use one in my web application based on grails/hibernate/mysql. So my question is simple : in which situations would you suggest to integrate a connection pooling library into a grails applica...
We're running a spring/hibernate/c3p0 application under load. When I reduce the c3p0 maxPoolSize to some far, far lower than the number of concurrent users, our application just hangs. There are no error messages in the log, but it doesn't proceed forward either. I expect the application to slow down, but not to stop altogether. Here ...
For a multiplayer game I'm working on I'd like to record events to the mysql database without blocking the game update thread so that if the database is busy or a table is locked the game doesn't stop running while it waits for a write. What's the best way to accomplish this? I'm using c3p0 to manage the database connection pool. My be...