Tomcat_Broken pipe

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Tomcat_Broken pipe

这个异常是由于以下几个原因造成。
1、客户端再发起请求后没有等服务器端相应完，点击了stop按钮，导致服务器端接收到取消请求。
   通常情况下是不会有这么无聊的用户，出现这种情况可能是由于用户提交了请求，服务器端相应缓慢，比如业务逻辑有问题等原因，导致页面过了很久也没有刷新出来，用户就有可能取消或重新发起请求。
2、Tomcat服务器在接受用户请求的时候，有其自身的处理能力，线程、服务器等各个资源限制，超出Tomcat承载范围的请求，就会被tomcat停掉，也可能产生该错误。
3、linux的线程机制会产生JVM出错的问题，特别是在连接高峰期间经常出现这样的问题，tomcat在linux下也出现类似情况。

Java代码

1. 1.sun的解释：     
   
2. 2.－－posted by: cooper     
   
3. 3.Below is a clipping from Sun on working around JVM crashes under high     
   
4. 4.thread counts in the JVM 1.3 for Linux     
   
5. 5.  
   
6. 6.On Linux, use a larger signal number for hotspot thread     
   
7. 7.suspension/resumption handler. The signal number being used is     
   
8. 8.specified by environment variable _JAVA_SR_SIGNUM. Setting it to a     
   
9. 9.number larger than SIGSEGV (11) will solve the problem. A good number     
   
10. 10.to use is 12, which is SIGUSR2. Using signal 16 to work around the     
    
11. 11.problem might have potential problems. So on tcsh, "setenv     
    
12. 12._JAVA_SR_SIGNUM 12" can solve the problem.  
    
13. sun的解释：  
    
14. －－posted by: cooper  
    
15. Below is a clipping from Sun on working around JVM crashes under high  
    
16. thread counts in the JVM 1.3 for Linux  
    
17. 
    
18. On Linux, use a larger signal number for hotspot thread  
    
19. suspension/resumption handler. The signal number being used is  
    
20. specified by environment variable _JAVA_SR_SIGNUM. Setting it to a  
    
21. number larger than SIGSEGV (11) will solve the problem. A good number  
    
22. to use is 12, which is SIGUSR2. Using signal 16 to work around the  
    
23. problem might have potential problems. So on tcsh, "setenv  
    
24. _JAVA_SR_SIGNUM 12" can solve the problem.

复制代码

“_JAVA_SR_SIGNUM=12”等号两边必须没有空格，等号是半角

如果有一天21

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