Tomcat memory leak 内存溢出异常

The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped.

 To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

 

org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection refused (Connection refused)
    at org.springframework.amqp.rabbit.support.RabbitExceptionTranslator.convertRabbitAccessException(RabbitExceptionTranslator.java:62) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:484) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.connection.CachingConnectionFactory.createConnection(CachingConnectionFactory.java:628) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.connection.ConnectionFactoryUtils.createConnection(ConnectionFactoryUtils.java:240) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1816) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1790) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1771) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.core.RabbitAdmin.getQueueProperties(RabbitAdmin.java:345) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.redeclareElementsIfNecessary(AbstractMessageListenerContainer.java:1604) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:995) [spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161]
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_161]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_161]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_161]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_161]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_161]
    at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_161]
    at com.rabbitmq.client.impl.SocketFrameHandlerFactory.create(SocketFrameHandlerFactory.java:60) ~[amqp-client-5.4.1.jar:5.4.1]
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1102) ~[amqp-client-5.4.1.jar:5.4.1]
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1054) ~[amqp-client-5.4.1.jar:5.4.1]
    at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1218) ~[amqp-client-5.4.1.jar:5.4.1]
    at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.createBareConnection(AbstractConnectionFactory.java:466) ~[spring-rabbit-2.0.6.RELEASE.jar:2.0.6.RELEASE]
    ... 9 common frames omitted

 

项目运行中中 经常会出现如上错误， 也会每小时 导致rabbitmq连接中断异常，为了解决这个异常，修改tomcat conf中server.xml找到JreMemoryLeakPreventionListener添加 该属性  gcDaemonProtection="false"

  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" gcDaemonProtection="false"/>