I hope this is the right forum for c3p0 problems.

This error happened after a full application load test running for 48 hours and processing ~7M transactions just finished successfully. About 30 minutes later, the same system stopped making DB operations.

After analysing tracedumps, I added c3p0.checkoutTimeout=120000 to c3p0 configuration. 48 hours later, running the test again, I got "timeout at awaitAcquire()" instead whenever attempting a DB operation.

I suspect that once there is no more load on the system, c3p0 empties the connection pool (from about 60 to 0 - which is below my hiberntate.c3p0.min_size=3 !!!). When the next request for a connection arrives - c3p0 won't allocate a new connection!

Hibernate version: 3.0.5, C3P0 version: 9.0.4 (also happened on 9.0.2)
DB: MySQL 4.1

The Error:
145766501 [TP-Processor136] 06/05/04-12:24:52,052 DEBUG com.mchange.v2.sql.SqlUtils - Converting Throwable to SQLException...
com.mchange.v2.resourcepool.TimeoutException: internal -- timeout at awaitAcquire()
at com.mchange.v2.resourcepool.BasicResourcePool.awaitAcquire(BasicResourcePool.java:970)
at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:208)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:260)
at com.mchange.v2.c3p0.PoolBackedDataSource.getConnection(PoolBackedDataSource.java:94)
at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:35)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:298)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:110)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:137)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:49)
at org.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:24)
at org.hibernate.jdbc.JDBCContext.beginTransaction(JDBCContext.java:271)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1079)
at com.pando.persistence.Persistence.getSession(Persistence.java:269)
at com.pando.persistence.Persistence.get(Persistence.java:409)
at com.pando.services.torrentevents.TorrentEventsManager.generateTorrentEventResult(TorrentEventsManager.java:113)
at com.pando.services.torrentevents.TorrentEventsManager.DStart(TorrentEventsManager.java:195)
at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:388)
at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:283)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:453)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:684)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

[/b]

Here is an extract of the c3p0 log a few minutes before the first awaitAcquire error - notice how the pool gets completely emptied:

[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1ec101a ---> age: 64560 max: 60000 [co
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1ec101a [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 26, unused: 26, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@12a0fce ---> age: 64561 max: 60000 [co
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@12a0fce [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 25, unused: 25, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@f15176 ---> age: 64663 max: 60000 [com
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@f15176 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 24, unused: 24, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1a3190b ---> age: 64676 max: 60000 [co
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1a3190b [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 23, unused: 23, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@27dbf ---> age: 64793 max: 60000 [com.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@27dbf [com.mchange.v2.resourcep
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 22, unused: 22, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@194ba9 ---> age: 64802 max: 60000 [com
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@194ba9 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 21, unused: 21, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1afbcdc ---> age: 64811 max: 60000 [co
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1afbcdc [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 20, unused: 20, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1f2f254 ---> age: 64820 max: 60000 [co
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1f2f254 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 19, unused: 19, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@c45bca ---> age: 64830 max: 60000 [com
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@c45bca [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 18, unused: 18, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@7fb5a8 ---> age: 64932 max: 60000 [com
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@7fb5a8 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 17, unused: 17, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:20:55 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@12ab4e7 ---> age: 62017 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@12ab4e7 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 16, unused: 16, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@6ce00f ---> age: 67009 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@6ce00f [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 15, unused: 15, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@bcf7c8 ---> age: 67017 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@bcf7c8 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 14, unused: 14, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1471176 ---> age: 67018 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1471176 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 13, unused: 13, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@10598f1 ---> age: 67063 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@10598f1 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 12, unused: 12, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@178a4db ---> age: 67064 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@178a4db [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 11, unused: 11, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@a8d067 ---> age: 67064 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@a8d067 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 10, unused: 10, excluded: 0] (e.g.
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@579f5d ---> age: 67066 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@579f5d [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 9, unused: 9, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@42fddf ---> age: 67067 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@42fddf [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 8, unused: 8, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@dd60dc ---> age: 67072 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@dd60dc [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 7, unused: 7, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1ca61b6 ---> age: 67073 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1ca61b6 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 6, unused: 6, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@683e0f ---> age: 67074 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@683e0f [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 5, unused: 5, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@99b388 ---> age: 67074 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@99b388 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 4, unused: 4, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@5494ab ---> age: 67154 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@5494ab [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 3, unused: 3, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1f795fb ---> age: 67173 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@1f795fb [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 2, unused: 2, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@18a7d24 ---> age: 67175 max: 60000 [co
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@18a7d24 [com.mchange.v2.resourc
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 1, unused: 1, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - EXPIRED resource: com.mchange.v2.c3p0.impl.NewPooledConnection@e911a2 ---> age: 67228 max: 60000 [com
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Removing expired resource: com.mchange.v2.c3p0.impl.NewPooledConnection@e911a2 [com.mchange.v2.resource
[Timer-3] 06/05/04-12:20:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0] (e.g. c
[Timer-3] 06/05/04-12:21:02,002 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:02 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:10 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:17,017 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:17 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:25,025 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:25 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:32,032 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:32 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:40,040 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:40 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:47 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:21:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:21:55 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:02,002 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:02 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:10 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:17,017 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:17 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:25,025 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:25 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:32,032 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:32 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:40,040 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:40 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:22:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:47 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor113] 06/05/04-12:22:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor113] 06/05/04-12:22:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor136] 06/05/04-12:22:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor136] 06/05/04-12:22:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[Timer-3] 06/05/04-12:22:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:22:55 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor124] 06/05/04-12:23:00,000 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor124] 06/05/04-12:23:00,000 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[Timer-3] 06/05/04-12:23:02,002 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:02 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:10 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:17,017 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:17 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:25,025 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:25 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:32,032 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:32 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:40,040 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:40 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:23:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:47 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor120] 06/05/04-12:23:48,048 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor120] 06/05/04-12:23:48,048 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor140] 06/05/04-12:23:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor140] 06/05/04-12:23:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor41] 06/05/04-12:23:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor41] 06/05/04-12:23:51,051 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor107] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor107] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor56] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor56] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor43] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor43] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor114] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor114] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor97] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor97] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor77] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor77] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor9] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor9] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0] (
[TP-Processor101] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor101] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor141] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor141] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor11] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor11] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor90] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor90] 06/05/04-12:23:52,052 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor126] 06/05/04-12:23:53,053 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor126] 06/05/04-12:23:53,053 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor117] 06/05/04-12:23:53,053 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor117] 06/05/04-12:23:53,053 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor72] 06/05/04-12:23:54,054 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor72] 06/05/04-12:23:54,054 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[TP-Processor39] 06/05/04-12:23:54,054 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor39] 06/05/04-12:23:54,054 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[Timer-3] 06/05/04-12:23:55,055 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:23:55 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:24:02,002 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:02 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:24:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:10 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor2] 06/05/04-12:24:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor2] 06/05/04-12:24:10,010 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0] (
[Timer-3] 06/05/04-12:24:17,017 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:17 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:24:25,025 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:25 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:24:32,032 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:32 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor50] 06/05/04-12:24:35,035 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@14ed577
[TP-Processor50] 06/05/04-12:24:35,035 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - trace com.mchange.v2.resourcepool.BasicResourcePool@a45a24 [managed: 0, unused: 0, excluded: 0]
[Timer-3] 06/05/04-12:24:40,040 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:40 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[Timer-3] 06/05/04-12:24:47,047 DEBUG com.mchange.v2.resourcepool.BasicResourcePool - Checking for expired resources - Thu May 04 12:24:47 EDT 2006 [com.mchange.v2.resourcepool.BasicResourc
[TP-Processor113] 06/05/04-12:24:51,051 DEBUG com.mchange.v2.sql.SqlUtils - Converting Throwable to SQLException...
ge.v2.resourcepool.TimeoutException: internal -- timeout at awaitAcquire()

I have the same problem, anybody has an idea?