apache+tomcat问题

网站是apache+tomcat的模式，tomcat运行一段时间后死掉（进程还在），网页打开提示：Service Temporarily Unavailable
catalina.log日志如下（9:12开始我手动重启tomcat）：

2008-11-25 8:05:23 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached
2008-11-25 8:05:26 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached
2008-11-25 8:05:27 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached
2008-11-25 8:05:29 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached
2008-11-25 9:12:18 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The Apache Portable Runtime which allows optimal performance in production environments was not found on the java.library.path: /usr/java/jdk1.5.0_02/jre/lib/i386/server:/usr/java/jdk1.5.0_02/jre/lib/i386:/usr/java/jdk1.5.0_02/jre/../lib/i386
2008-11-25 9:12:19 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1092 ms
2008-11-25 9:12:19 org.apache.catalina.realm.JAASRealm setContainer
信息: Set JAAS app name Catalina
2008-11-25 9:12:19 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-11-25 9:12:19 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.12
2008-11-25 9:12:19 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
log4j:WARN No appenders could be found for logger (org.apache.catalina.startup.TldConfig).
log4j:WARN Please initialize the log4j system properly.
2008-11-25 9:12:22 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2008-11-25 9:12:22 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/88  config=null
2008-11-25 9:12:22 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2008-11-25 9:12:22 org.apache.catalina.startup.Catalina start
信息: Server startup in 3715 ms
2008-11-25 9:13:34 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached
2008-11-25 9:13:34 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached

你试试将java进程杀死后，，重新启动一个tomcat，，如果问题解决，，可能就和我出现的问题一样了

那楼上的操作，还是不可以

好好查查程序，，可能出在程序上，，看有没有死循环什么的，，tomcat报的日志应该很多，不只这一点吧

其他的日志都是正常的，都是这样如
2008-11-25 9:13:34 org.apache.jk.common.ChannelSocket processConnection
信息: connection timeout reached