apache使用proxypass连接tomcat 的一个问题 error(120006)

 

apache使用proxypass连接tomcat 的一个问题，apache的error log片段如下

 

我使用apache管理了多个tomcat，每个tomcat都使用不同的端口，其他网站都可以正常访问，但是今天新增了一个就出现这个问题，非常奇怪

 

[Wed Mar 09 11:19:50 2011] [error] ajp_read_header: ajp_ilink_receive failed
[Wed Mar 09 11:19:50 2011] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (localhost)
[Wed Mar 09 11:19:53 2011] [error] (70014)End of file found: ajp_ilink_receive() can't receive header
[Wed Mar 09 11:19:53 2011] [error] ajp_read_header: ajp_ilink_receive failed
[Wed Mar 09 11:19:53 2011] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (localhost)
[Wed Mar 09 11:19:53 2011] [error] (70014)End of file found: ajp_ilink_receive() can't receive header
[Wed Mar 09 11:19:53 2011] [error] ajp_read_header: ajp_ilink_receive failed
[Wed Mar 09 11:19:53 2011] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (localhost)
[Wed Mar 09 11:19:54 2011] [error] (70014)End of file found: ajp_ilink_receive() can't receive header
[Wed Mar 09 11:19:54 2011] [error] ajp_read_header: ajp_ilink_receive failed

 在网上搜了很多方法，都是不能解决问题，后来经过排查，发现和 ajp的端口有关系，原来使用的是8009，修改为大于8010的端口即可，问题解决了，但是不知道原因，希望对遇到相同问题的朋友们有帮助，或者有人知道原因，请分享一下

评论

3 楼 xieyongwei 2013-12-31  

你错了
产生真个原因是死锁造成的
很有可能Tomcat中项目使用了JNDI数据源，数据库驱动使用了Oracle的旧版本。
下面是一个老外的答案：


It turns out that this version (classes12 - quite old) of the Oracle driver had various bugs in it that caused a deadlock (as seen in the TP-Processor2 state quoted above). It didn't become active until we switched to the new environment. Upgrading to the latest version (ojdbc14) has resolved the issue on the primary server.

2 楼 zxh56964106 2012-04-06  

我也遇到了同样的问题，我是这样解决的：
在apache的配置文件中：
ProxyRequests Off
     <proxy balancer://cluster>
          BalancerMember ajp://192.168.9.103:8009 loadfactor=1 route=jvm1
          BalancerMember ajp://192.168.9.103:9009 loadfactor=1 route=jvm2
     </proxy>
上面的代码是用来告知apache进行负载均衡的，使用了两个tomcat后面的端口就是ajp的连接端口，而这两个端口需要在相应的tomcat下的server.xml进行配置。
具体如下：
例如：tomcat1：
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
tomcat2：
<Connector port="9009" protocol="AJP/1.3" redirectPort="8443" />
我的问题就是这样解决的。

1 楼 peyote 2011-11-25  

楼主是怎么通过排查发现和ajp端口有关系的？