Tomcat 7停止接收HTTP请求

Question

我有一台Tomcat 7服务器接收了很多请求GET.这种方法效果很好,然后突然停止工作(7-8小时后).

当它停止工作时,我收到此错误:

mai 06,2015 12:47:58 AM org.apache.coyote.http11.AbstractHttp11Processor进程信息:解析HTTP请求标头时出错注意:将在DEBUG级别记录更多出现的HTTP标头解析错误.

此后所有其他错误都是一样的.我试图阻止get-requests,但反正一段时间后崩溃了.你有什么想法？

这是在它崩溃之前:

[06/May/2015:10:47:11 +0200]"GET/ListenerServlet？request = getLastChanged&_ = 1430852558104 HTTP/1.1"200 32

崩溃后:

[06/May/2015:10:47:14 +0200]"GET/ListenerServlet？request = getLastChanged&_ = 1430902035081 HTTP/1.1"500 1674

崩溃后,Servlet无法获取请求参数..抛出此nullpointer:

SEVERE: Servlet.service() for servlet [RoomServlet] in context with path [] threw exception java.lang.NullPointerException
        at factory.Factory.initEditMode(Factory.java:37)
        at factory.Factory.init(Factory.java:20)
        at factory.TabsFactory.<init>(TabsFactory.java:19)
        at servlet.RoomServlet.getTabs(RoomServlet.java:285)
        at servlet.RoomServlet.doGet(RoomServlet.java:46)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

其次是:

mai 07, 2015 9:58:00 AM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class websocket.drawboard.DrawboardContextListener
java.lang.NoClassDefFoundError: javax/websocket/Endpoint
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2944)
        at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1208)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
        at websocket.drawboard.DrawboardContextListener.contextDestroyed(DrawboardContextListener.java:32)
        at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:5014)
        at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5659)
        at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
        at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1575)
        at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1564)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: javax.websocket.Endpoint
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1718)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
        ... 17 more

如果我需要添加更多内容,请告诉我们!我真的很感激.

编辑:今天是美好的一天,我有一个新的错误!这可能与JDBC有关......

从服务器成功收到的最后一个数据包是33 921 291毫秒前.成功发送到服务器的最后一个数据包是1毫秒前.连接关闭后不允许任何操作.

Answer 1

我几乎随机地找到了这个问题的解决方案。

没有任何相关内容：

org.apache.coyote.http11.AbstractHttp11Processor进程

但这是一个 JDBC 问题.. 连接在 8 小时后关闭，并且我在 Servlet 中没有收到任何错误。

我的解决方案是在我的应用程序的上下文中添加一些行：

我补充道：

url="jdbc:mysql://127.0.0.1:3306/test?autoReconnect=true"
dontTrackOpenResources="true"
testWhileIdle="true"
timeBetweenEvictionRunsMillis="300000"

这是我现在的完整上下文：

<Context>
  <Resource name="jdbc/test" auth="Container" type="javax.sql.DataSource"
               maxActive="100" maxIdle="100" maxWait="30000"
               username="test" password="bestpassword" 
               driverClassName="com.mysql.jdbc.Driver"
               url="jdbc:mysql://127.0.0.1:3306/test?autoReconnect=true"
               removeAbandoned="true" removeAbandonedTimeout="10"
               factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
               fairQueue="true"
               dontTrackOpenResources="true"
               testWhileIdle="true"
               timeBetweenEvictionRunsMillis="300000"
               />
</Context>

我的服务器已经一周没有崩溃了，我相信它不会再崩溃了。