c3p0 Questions
1
We have a web application with the stack Spring, Hibernate, C3P0, Oracle DB Driver (having an Oracle DB behind).
From time to time we experience blocking locks over a longer period of time which th...
2
Solved
I have my Spring Hibernate web application running on MySQL that gives me trouble.
I have searched around and tried different configurations, read quite a few threads on this website, but it still...
Alice asked 17/10, 2014 at 10:4
4
We are implementing a Web App using JPA2.0 and Hibernate3.0. Connection pool configurations are set in persistence.xml located in META-INF folder.
persistence.xml:
<persistence xmlns="http:/...
Sybilla asked 16/9, 2012 at 10:44
1
I'm using Spring configuration file to configure C3P0. To monitor DataSource I configured net.bull.javamelody.SpringDataSourceFactoryBean as mentioned in the user guide of javamelody. But my report...
Took asked 17/1, 2018 at 7:39
3
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I recently got the following messages in our logs followed by a JVM crash (Due to OOME). I am not sure what to make of this and would really appreciate any guidance.
2015-03-19 21:15:02,457 [Timer...
1
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I have below exception
javax.persistence.PersistenceException: Exception [EclipseLink-4002]
(Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd):
org.eclipse.persistence.exceptions.Databas...
6
I use Hibernate together with MySQL 5.1.30.
I have the next libraries:
c3p0-0.0.1.2.jar
mysql-connector-java-5.0.3-bin.jar
hibernate3.jar
I use a hibernate.cfg.xml for configuration:
<!...
1
I was under the impression that the libraries for both the database driver (postgres-x.x.jar'in my case) and the connection pooler (c3p0) had to reside in the container's lib (e.g. for Tomcat7, $CA...
Accede asked 10/8, 2017 at 18:29
3
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Because of problems with c3p0 connection pool, I want to see the alternatives and decide which one might be more usable in my case. HikariCP looks very promising, but there is no documentation how ...
Eft asked 3/1, 2014 at 8:23
1
4
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...
2
I am trying to compare Some of the java connection pool libraries, but so far I've not found any satisfactory answer.
Right now C3P0 is being used in my application but I want to suggest other Con...
Friseur asked 4/10, 2016 at 8:13
1
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We are using c3p0 as the connection pool in our application with Microsoft SQL Database. The connections are tested on checkout with validation query so that application doesn't work with stale con...
Merrymaking asked 29/3, 2017 at 22:13
1
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I encountered a critical problem with the c3p0 library (version 0.9.5.2) that I use in my Java SE application.
My application uses a Thread Pool to parallelize task by executing jobs.
Each job us...
Vocoid asked 16/1, 2017 at 20:31
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We are trying to implement connection pooling using c3p0. The issue is when there are no transactions on our server for long time, the very first next transaction have connection timeout issue.
Ex...
Cowles asked 18/11, 2016 at 7:54
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I have these codes for closing c3p0 connection manager but it seems that there is still one more thread that was not closed . Am i missing something ?
Oct 11, 2016 5:12:09 PM org.springframework.c...
Orren asked 12/10, 2016 at 0:11
3
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I keep getting this exception in my Tomcat log:
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector run
WARNING: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@7...
Toland asked 7/8, 2013 at 10:1
6
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For a Java app outside of a J2EE container, which connection pool library is the best?
I heard c3p0 is getting outdated.
Jakarta's common pool library is no longer under development
Therefore I...
Di asked 8/11, 2011 at 21:11
1
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This may be a duplicate of Weird Error: CLOSE BY CLIENT STACK TRACE But I've asked a new question because I don't see isLoggable method for Log. I'm using Logger class of org.apache.log4j.Logger fo...
2
I have a SpringBoot app (1.3.2.RELEASE on Java 8) and it's using both Hibernate 4.3.11.Final and SQL calls via JDBC against Oracle JDBC driver 12.1.0.1. It's also using hibernate-c3p0 4.3.11.Final....
Basile asked 9/2, 2016 at 21:19
1
I am using c3p0 for my connection pooling. The ComboPooledDataSource I use is configured as below.
@Bean
public DataSource dataSource() {
ComboPooledDataSource dataSource = new ComboPooledDataSo...
Mel asked 21/12, 2015 at 5:55
2
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I'm new to c3p0, and confused about the use of :
c3p0.idle_test_period
In this link : HowTo configure the C3P0 connection pool
idleTestPeriod : Must be set in hibernate.cfg.xml (or hibernate.prope...
1
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We are facing APPARENT DEADLOCK while using c3p0 0.9.5.1 ( which is latest version of c3p0). following is the connection pool config we are using.
p:driverClass="${app.jdbc.driverClassReplica}"
...
Datary asked 20/6, 2015 at 10:22
1
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When a database is down then automatically the ip and port switch to another db server.
How should I configure c3p0 connection pooling of my web apps to follow this Database failover mechanism?
C...
Antependium asked 19/3, 2015 at 16:8
3
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I'm facing with UTF-8 encoding problem while persisting my model objects. In Turkish 'ı' is a letter. Also there're some other Turkish characters that is included in UTF-8 encoding. While I persist...
Saboteur asked 1/8, 2012 at 11:18
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