Question

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runnign service railo_ctl restart有固定的问题，但是最近这个问题还没有解决。

在过去的两周里，我把问题缩小了，我很确定问题来自Tomcat。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，查看服务器崩溃的时间并发现此错误消息：

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.

此SEVERE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

我也注意到这个错误出现了，但它似乎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)

对此有任何想法或建议将不胜感激。

Answer 1

我相信这是你问题的根源：

严重：Web应用程序[]仍在处理具有的请求还没完成

您应用中的某些内容导致线程挂起，可能会死亡。不幸的是，这类错误很难诊断。如果我是你，我会做的是用FusionReactor监控应用程序，特别注意应用程序中长时间运行的请求。这可以提供有关您的应用程序导致这些问题的线索。

我会在一个单独的Tomcat实例中安装FusionReactor，这样它就可以在应用程序死亡之前和之后监控它。同样，这可以提供更多关于确切线程悬挂和/或死亡的线索。

FusionReactor是一种商业产品，但它具有30天的试用期，其功能齐全。如果你要管理这个应用程序，许可证可能是值得的，但如果你不能解决这个问题，那么还有其他JVM监控产品，如VisualVM等。它们不像FusionReactor那样具有针对性，但它们仍然可以提供帮助。

HTH

Answer 2

将JVM内存日志记录设置为documented here。然后将这些日志提供给GCViewer

这应该让你对内存使用有很好的了解。你会看到一个锯齿状的内存使用模式，但每次告诉你是否有泄漏时，锯齿模式的底部有多低。如果锯齿的槽向上行进，那就是一个标志。

您还可以在进程上使用kill -3来告诉它将其当前线程转储到其日志文件中。如果您相隔5秒，5次，则可以在Samurai

中打开日志

您正在寻找每个连续转储中堆栈看起来相同或相似的线程。他们将成为被困的人。什么是崩溃时的CPU负载？

Tomcat可能存在内存泄漏

2 个答案: