A web application registered the JBDC 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.
web系统跑一段就会暴出上面的问题,网上查了,大家给出了三个可能的原因:
1.struts2中jar包有冲突,导致该问题。。。我去,这个怎么确定是哪个jar有冲突。。。
2.tomcat6.0.24版本增加了对垃圾回收不能处理的对象的检查
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>
把这个去掉就不会自动检查也不会报错了,但出问题的根本原因不得而知现在。。。
3.真的jdbc的连接没有关闭
根本原因待跟进。。。
分享到:
相关推荐
To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 十二月 02, 2013 8:19:43 上午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered. ``` 这里,`[web application]`是你的应用名称,`[net.sourceforge.jtds.jdbc.Driver]`是具体的JDBC驱动类名。 解决这个问题有以下...
- The passing of invalid OPC Item IDs caused a memory leak in the driver's global memory. After the global memory was exhausted, the driver crashed. - The writing of strings failed when using ...
Memory leaks occur when a program allocates memory but fails to release it back to the system, causing the application to consume more and more memory over time. This can lead to poor performance and ...
A 2 minute timeout has been added to the collection of system information. - Video playback, Hard disk and CD/DVD test 'no operations' error reporting changed. - When BurnInTest crashes, it will ...
If you attempt to access a reserved address that has not yet been committed (backed by memory or disk) you will cause an access violation. Committed Memory Committed pages are those pages that when ...
《Dropout:一种防止神经网络过拟合的简单方法》 在深度学习领域,过拟合是一个常见的问题,它指的是模型在训练集上表现良好,但在测试集或新数据上性能急剧下降。过拟合是由于模型过度依赖训练数据中的特定特征,...
ACPI_OPERAND_OBJECT has been manually optimized to be aligned and will not work if it is byte-packed. Example Code and Data Size: These are the sizes for the OS- independent acpica.lib produced by ...
Up until now, the FreeBSD project has released a number of described techniques to do different parts of work. However, a project model summarising how the project is structured is needed because of ...
.- Reduced the line sleep to 30 (tell me if this value doesn‘t work for you).27/4/981.7.0- Fixed a memory leak, thanks to Don Higgins.- Moved the string esErrorInFormatOfMsg to a property of SakPOP.-...
This means that you do not worry about corrupting Excel files, this product has been tested repeatedly by the team and has the best data access strategies used to prevent any damage to files....
* A test helper has been introduced to optimize preparation of test repositories with many simple commits, and a handful of test scripts have been updated to use it. Fixes since v2.22 -----------...
This release has been updated to fix three issues: Update to fix a conflict between the Ajax Control Toolkit and jQuery/jQuery UI. Update to the ToolkitScriptManager to prevent an error that resulted ...
- 输出:2x2A @ 24V 低/高压电磁阀控制输出 通过以上分析可以看出,便携式测试控制器不仅具备出色的性能和技术规格,还拥有广泛的适用范围和高度的灵活性,是航空航天和汽车测试领域不可或缺的重要工具。
• Before turning on the power, make sure the power supply voltage has been set according to the local voltage standard. • Before using the product, please verify that all cables and power ...
The Nexus Memory Manager helps prevent this by using a multi stage allocation system which preallocatessmall chunks of memory and leases parts of them to the application, whenever required. Inaddition...
Common System and Software Testing Pitfalls How to Prevent and Mitigate Them 英文epub 本资源转载自网络,如有侵权,请联系上传者或csdn删除
attempt to prevent the use of overwritten heap headers to do arbitrary byte writing. This method of exploiting heap overflows, and the protection offered by service pack 2, is widely known and has ...
WebRTC防止泄漏版本1.0.14 | 2018年5月9日WebRTC Leak Prevent提供了对Chromium中没有本机GUI的WebRTC隐私设置的用户控制。 该扩展的预期用途是防止。 唯一需要的权限是“隐私”和“存储”。这个怎么运作在Chromium...