[tomcat 8.0.47]To prevent a memory leak, the JDBC Driver has been forcibly unregistered
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环境:tomcat 8.0.47
通过tomcat 8.0.47发布web项目,突然无故断开,查看后台日志发现:
The web application [ROOT] registered the JDBC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered
大致意思是:web程序注册jdbc驱动,但是遇到一个错误。为了防止内存泄露,jdbc驱动取消注册。由此可见 先发生web错误 后导致取消注册,一旦取消注册之后,所有的connect 都将断开,导致tomcat死掉。所以要解决的就是不让取消注册。
最后再往上搜索了如下3个方法:
1. 将jdbc驱动包拷贝至tomcat的lib下,由tomcat自己进行管理
2. 将tomcat的server.xml中,删除防止内存泄露监听这行:
< Listener className=”org.apache.catalina.core.JreMemoryLeakPreventionListener”>
3. 将tomcat换成6.0.25以前的版本。
个人建议 把tomcat启动内存加大点,也可以防止内存泄露的问题。
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