程序员经验分享-hwhale

Tomcat可能存在内存泄漏

2024-01-19

我工作的大学使用 Tomcat/Railo 服务器来呈现 ColdFusion 页面。大约 6 个月（在我被雇用之前），服务器在不同时间随机崩溃，通常是运行状态service railo_ctl restart已经解决了问题，但是最近这并没有发挥作用。

在过去的两周里，我已经缩小了问题的范围，并且我相当确定 Tomcat 问题来自何处。我从未使用过 Tomcat，所以我不知道从哪里开始。我查看了 Catalina.out 文件，并查看了服务器崩溃的时间，发现了以下错误消息：

Sep 18, 2013 3:17:12 PM org.apache.catalina.core.StandardServer await.
INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instanc
Sep 18, 2013 3:17:12 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8888"]
Sep 18, 2013 3:17:13 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Sep 18, 2013 3:17:14 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Sep 18, 2013 3:17:19 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [] is still processing a request that has yet to finish. This is very likely to create a memory leak. You can control the time allowed for requests to finish by using the unloadDelay attribute of the standard Context implementation.

这个严重错误可能会打印 200 次

Sep 18, 2013 11:19:26 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8888"]
Sep 18, 2013 11:19:26 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Sep 18, 2013 11:19:26 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8888"]
Sep 18, 2013 11:19:26 AM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]
Sep 18, 2013 11:19:35 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: 
/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib

我也注意到出现了这个错误，但它似乎并没有在服务器崩溃的同时弹出

Sep 18, 2013 11:06:39 AM org.apache.catalina.loader.WebappClassLoader findResourceInternal
INFO: Illegal access: this web application instance has been stopped already.  Could not load META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
Sep 18, 2013 11:06:39 AM org.apache.catalina.loader.WebappClassLoader loadClass
INFO: Illegal access: this web application instance has been stopped already.  Could not load org.apache.xerces.parsers.XIncludeAwareParserConfiguration.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1564)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523)
    at org.apache.xerces.parsers.ObjectFactory.findProviderClass(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.newInstance(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.ObjectFactory.createObject(Unknown Source)
    at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
    at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
    at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
    at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.setAttribute(Unknown Source)
    at railo.runtime.text.xml.XMLUtil.setAttributeEL(XMLUtil.java:270)
    at railo.runtime.text.xml.XMLUtil.parse(XMLUtil.java:221)
    at railo.runtime.functions.decision.IsXML.call(IsXML.java:22)
    at content.feed.feedmanager_cfc$cf._2(/var/www/vhosts/my_web_app/requirements/mura/content/feed/feedManager.cfc:346)
    at content.feed.feedmanager_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/feed/feedManager.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at fsu.includes.display_objects.dsp_feed_cfm$cf.call(/var/www/vhosts/my_web_app/fsu/includes/display_objects/dsp_feed.cfm:132)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:799)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:746)
    at content.contentrenderer_cfc$cf._5(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:956)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at content.contentrenderer_cfc$cf._5(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:902)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:774)
    at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1495)
    at content.contentrenderer_cfc$cf._call000069(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:1113)
    at content.contentrenderer_cfc$cf._5(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:1113)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at formbuilder_21.eventhandlers.contentrenderer_cfm$cf.udfCall(/var/www/vhosts/my_web_app/plugins/FormBuilder_21/eventHandlers/contentRenderer.cfm:27)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at ldapsurvey_25.eventhandlers.contentrenderer_cfm$cf.udfCall(/var/www/vhosts/my_web_app/plugins/LDAPSurvey_25/eventHandlers/contentRenderer.cfm:73)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:721)
    at railo.runtime.util.VariableUtilImpl.callFunction(VariableUtilImpl.java:706)
    at railo.runtime.interpreter.ref.func.UDFCall.getValue(UDFCall.java:52)
    at railo.runtime.interpreter.CFMLExpressionInterpreter.interpret(CFMLExpressionInterpreter.java:187)
    at railo.runtime.functions.dynamicEvaluation.Evaluate._call(Evaluate.java:76)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:69)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:22)
    at content.contentrenderer_cfc$cf._8(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:1817)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at content.contentrenderer_cfc$cf._9(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:2141)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at in_contexteditor_16135.incontexteditor.eventhandler_cfc$cf.udfCall(/var/www/vhosts/my_web_app/plugins/In-ContextEditor_16/inContextEditor/EventHandler.cfc:120)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:616)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1830)
    at railo.runtime.tag.Invoke.doComponent(Invoke.java:210)
    at railo.runtime.tag.Invoke.doEndTag(Invoke.java:183)
    at plugin.pluginmanager_cfc$cf._call000020(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginManager.cfc:1478)
    at plugin.pluginmanager_cfc$cf._3(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginManager.cfc:1391)
    at plugin.pluginmanager_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginManager.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at plugin.pluginmanager_cfc$cf._3(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginManager.cfc:1219)
    at plugin.pluginmanager_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginManager.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at content.contentrenderer_cfc$cf._6(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc:1268)
    at content.contentrenderer_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentRenderer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:616)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1830)
    at railo.runtime.tag.Invoke.doComponent(Invoke.java:210)
    at railo.runtime.tag.Invoke.doEndTag(Invoke.java:183)
    at murascope_cfc$cf._1(/var/www/vhosts/my_web_app/requirements/mura/MuraScope.cfc:110)
    at murascope_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/MuraScope.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl.onMissingMethod(ComponentImpl.java:539)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:504)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1834)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:769)
    at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1495)
    at fsu.includes.themes.fsu.templates.default_cfm$cf.call(/var/www/vhosts/my_web_app/fsu/includes/themes/fsu/templates/default.cfm:109)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:799)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:746)
    at translator.standardhtmltranslator_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/Translator/standardHTMLTranslator.cfc:80)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:616)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1834)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:769)
    at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1495)
    at plugin.pluginstandardeventwrapper_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginStandardEventWrapper.cfc:121)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at handler.standardeventshandler_cfc$cf._1(/var/www/vhosts/my_web_app/requirements/mura/Handler/standardEventsHandler.cfc:60)
    at handler.standardeventshandler_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/Handler/standardEventsHandler.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:616)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1830)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:755)
    at railo.runtime.util.VariableUtilImpl.callFunction(VariableUtilImpl.java:705)
    at railo.runtime.interpreter.ref.func.UDFCall.getValue(UDFCall.java:52)
    at railo.runtime.interpreter.CFMLExpressionInterpreter.interpret(CFMLExpressionInterpreter.java:187)
    at railo.runtime.functions.dynamicEvaluation.Evaluate._call(Evaluate.java:76)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:69)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:22)
    at plugin.pluginstandardeventwrapper_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginStandardEventWrapper.cfc:84)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at handler.standardeventshandler_cfc$cf._2(/var/www/vhosts/my_web_app/requirements/mura/Handler/standardEventsHandler.cfc:311)
    at handler.standardeventshandler_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/Handler/standardEventsHandler.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:377)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:616)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1830)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:755)
    at railo.runtime.util.VariableUtilImpl.callFunction(VariableUtilImpl.java:705)
    at railo.runtime.interpreter.ref.func.UDFCall.getValue(UDFCall.java:52)
    at railo.runtime.interpreter.CFMLExpressionInterpreter.interpret(CFMLExpressionInterpreter.java:187)
    at railo.runtime.functions.dynamicEvaluation.Evaluate._call(Evaluate.java:76)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:69)
    at railo.runtime.functions.dynamicEvaluation.Evaluate.call(Evaluate.java:22)
    at plugin.pluginstandardeventwrapper_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/plugin/pluginStandardEventWrapper.cfc:84)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at servlet_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/servlet.cfc:85)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at mura_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/Mura.cfc:84)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at content.contentserver_cfc$cf._1(/var/www/vhosts/my_web_app/requirements/mura/content/contentServer.cfc:225)
    at content.contentserver_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentServer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:738)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at content.contentserver_cfc$cf._1(/var/www/vhosts/my_web_app/requirements/mura/content/contentServer.cfc:271)
    at content.contentserver_cfc$cf.udfCall(/var/www/vhosts/my_web_app/requirements/mura/content/contentServer.cfc)
    at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:215)
    at railo.runtime.type.UDFImpl._call(UDFImpl.java:434)
    at railo.runtime.type.UDFImpl.call(UDFImpl.java:384)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:615)
    at railo.runtime.ComponentImpl._call(ComponentImpl.java:502)
    at railo.runtime.ComponentImpl.call(ComponentImpl.java:1815)
    at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:733)
    at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1480)
    at index_cfm$cf.call(/var/www/vhosts/my_web_app/index.cfm:53)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:799)
    at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:751)
    at railo.runtime.listener.ModernAppListener._onRequest(ModernAppListener.java:179)
    at railo.runtime.listener.MixedAppListener.onRequest(MixedAppListener.java:23)
    at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2035)
    at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2002)
    at railo.runtime.engine.CFMLEngineImpl.serviceCFML(CFMLEngineImpl.java:297)
    at railo.loader.servlet.CFMLServlet.service(CFMLServlet.java:32)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

对此的任何想法或建议将不胜感激。


我相信这是你问题的根源：

严重：Web 应用程序 [] 仍在处理已发生以下情况的请求： 尚未完成

您的应用程序中的某些内容导致线程挂起，甚至可能死亡。不幸的是，此类错误极难诊断。如果我是您，我会做的是使用 FusionReactor 之类的工具来监视应用程序，并特别注意应用程序中长时间运行的请求。这可以提供有关应用程序的哪个部分导致这些问题的线索。

我将在 Tomcat 的一个单独实例中安装 FusionReactor，以便它可以在应用程序死亡之前和之后监控您的应用程序。同样，这可以提供更多关于到底哪些线程挂起和/或死亡的线索。

FusionReactor 是一款商业产品，但提供 30 天的试用期，在此期间它可以发挥全部功能。如果您要管理此应用程序，那么许可证可能是值得的，但如果您无法使用它，那么还有其他 JVM 监控产品，例如 VisualVM 等。它们不像 FusionReactor 那样有针对性，但仍然可以提供帮助。

HTH

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