this might not be related to the pool, but the fact that statements and
resultsets are not closed.
the error comes directly from Oracle,
Filip
Hiram Chirino wrote:
could you try using the C3P0 [1] connection pooling instead of the
default commons logging pooling. Some folks have reported better luck
using it.
Just add the c3p0 jar to the lib dir and add spring bean similar to
the following (this a mysql example)
<bean id="mysql-ds"
class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost/activemq"/>
<property name="user" value="user"/>
<property name="password" value="password"/>
<property name="minPoolSize" value="6"/>
<property name="maxPoolSize" value="18"/>
<property name="acquireIncrement" value="3"/>
<property name="idleConnectionTestPeriod" value="60"/>
</bean>
[1] http://sourceforge.net/projects/c3p0
On Sun, May 11, 2008 at 10:57 PM, cauchy <[EMAIL PROTECTED]> wrote:
Hi everybody!
I used Oracle 9 as persistence storage with out journal.After ran the
ProducerAndConsumerTool.java in exmple pakage of ActiveMQ 5.0 for a while
,the Exception occured:
Caught: javax.jms.JMSException: ORA-00020: maximum number of processes (150)
exceeded
javax.jms.JMSException: ORA-00020: maximum number of processes (150)
exceeded
at
org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:49)
at
org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1178)
at org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1640)
at
org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:226)
at
org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageProducerSupport.java:240)
at test3.ProducerTool.sendLoop(ProducerTool.java:143)
at test3.ProducerTool.run(ProducerTool.java:108)
at test3.ProducerAndConsumerTool.main(ProducerAndConsumerTool.java:52)
Caused by: java.io.IOException: ORA-00020: maximum number of processes (150)
exceeded
at
org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:45)
at
org.apache.activemq.store.jdbc.TransactionContext.getConnection(TransactionContext.java:61)
at
org.apache.activemq.store.jdbc.adapter.DefaultJDBCAdapter.doAddMessage(DefaultJDBCAdapter.java:172)
at
org.apache.activemq.store.jdbc.JDBCMessageStore.addMessage(JDBCMessageStore.java:69)
at
org.apache.activemq.store.memory.MemoryTransactionStore.addMessage(MemoryTransactionStore.java:229)
at
org.apache.activemq.store.memory.MemoryTransactionStore$2.addMessage(MemoryTransactionStore.java:129)
at org.apache.activemq.broker.region.Topic.doMessageSend(Topic.java:400)
at org.apache.activemq.broker.region.Topic.send(Topic.java:371)
at
org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:328)
at
org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:402)
at
org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:224)
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:125)
at
org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:95)
at
org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:135)
at
org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:434)
at
org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:623)
at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
at
org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
at
org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
at
org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:138)
at
org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
at
org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:185)
at
org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:172)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLException: ORA-00020: maximum number of processes
(150) exceeded
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.O3log.receive1st(O3log.java:408)
at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:260)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:365)
at
oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:547)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:347)
at
org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:37)
at
org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:290)
at
org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:771)
at
org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:95)
at
org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:544)
at
org.apache.activemq.store.jdbc.TransactionContext.getConnection(TransactionContext.java:54)
... 23 more
So what's this prolem and how to fix it?
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