java - 两天后，Web 停止工作，但 Tomcat 仍在运行。重启Tomcat修复问题

Question

我在配置服务器(Ubuntu 操作系统)上运行 Tomcat7 来配置设备。问题是 http 在几天后停止工作，当我重新启动 tomcat 时，一切都恢复正常。我收集了下面的日志。

org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [main] in context with path [/web] threw exception [java.io.IOException: <p>An error occured</p>ClientAbortException:  java.net.SocketException: Broken pipe (Write failed)] with root cause
java.io.IOException: <p>An error occured</p>ClientAbortException:  java.net.SocketException: Broken pipe (Write failed)
        at com.owera.xaps.web.app.Output.deliverHTML(Output.java:455)
        at com.owera.xaps.web.app.Output.deliverResponse(Output.java:140)
        at com.owera.xaps.web.app.Main.doImpl(Main.java:183)
        at com.owera.xaps.web.app.Main.doGet(Main.java:94)
        at com.owera.xaps.web.app.Main.doPost(Main.java:84)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
        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 com.owera.xaps.web.app.security.LoginServlet.doFilter(LoginServlet.java:248)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        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:493)
        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:1041)
        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:1152)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
        at java.lang.Thread.run(Thread.java:748)

任何想法/帮助

Answer 1

Bill，您将必须分析线程转储，并且必须检查一次应用程序代码。看来对象没有得到 GC。

但在此之前，为了证明这个类比，你可以尝试将你的内存加倍。在您的 catalina.sh/catalina.bat (取决于操作系统)中，请尝试修改您的 -Xmx、-Xms 和 - XX:MaxPermSize 并观察它是否对您的服务器正常运行时间有任何影响。