java - tomcat中集群环境中的内存泄漏

我的应用中出现 OutOfMemory 异常。我已经采取了堆转储并通过MAT进行了分析。在分析我的应用程序内存使用情况时，我发现了以下疑我无法理解这些嫌犯背后的主要原因。

请帮助我理解这个泄漏嫌疑人及其相关解决方案。

怀疑1

线程org.apache.tomcat.util.threads.TaskThread @ 0x2bdf5ff8＆＃34; ajp-bio-9002＆＃34; -exec-5保留局部变量，总大小为113,973,288（50.72％））bytes。

内存累积在＆＃34; org.apache.tomcat.util.threads.TaskThread＆＃34;的一个实例中。由＆＃34; org.apache.catalina.loader.StandardClassLoader @ 0x293b4488＆＃34;加载。

线程堆栈

＆＃34; AJP-BIO-9002＆＃34; -exec -5- 在java.util.Arrays.copyOf（[CI] [C（Arrays.java:2882）） at java.lang.AbstractStringBuilder.expandCapacity（I）V（AbstractStringBuilder.java:100） at java.lang.AbstractStringBuilder.append（C）Ljava / lang / AbstractStringBuilder; （AbstractStringBuilder.java:572）在java.lang.StringBuffer.append（C）Ljava / lang / StringBuffer; （StringBuffer.java:320） at org.apache.myfaces.renderkit.html.util.ReducedHTMLParser.consumeString（C）Ljava / lang / String; （ReducedHTMLParser.java:303） at org.apache.myfaces.renderkit.html.util.ReducedHTMLParser.consumeAttrValue（）Ljava / lang / String; （ReducedHTMLParser.java:327）在org.apache.myfaces.renderkit.html.util.ReducedHTMLParser.parse（）V（ReducedHTMLParser.java:579）在org.apache.myfaces.renderkit.html.util.ReducedHTMLParser.parse（Ljava / lang / CharSequence; Lorg / apache / myfaces / renderkit / html / util / CallbackListener;）V（ReducedHTMLParser.java:66）在org.apache.myfaces.renderkit.html.util.DefaultAddResource.parseResponse（Ljavax / servlet / http / HttpServletRequest; Ljava / lang / String; Ljavax / servlet / http / HttpServletResponse;）V（DefaultAddResource.java:699）在org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter（Ljavax / servlet / ServletRequest; Ljavax / servlet / ServletResponse; Ljavax / servlet / FilterChain;）V（ExtensionsFilter.java:157）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（Ljavax / servlet / ServletRequest; Ljavax / servlet / ServletResponse;）V（ApplicationFilterChain.java:243）在org.apache.catalina.core.ApplicationFilterChain.doFilter（Ljavax / servlet / ServletRequest; Ljavax / servlet / ServletResponse;）V（ApplicationFilterChain.java:210）在org.apache.catalina.core.StandardWrapperValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（StandardWrapperValve.java:240）在org.apache.catalina.core.StandardContextValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（StandardContextValve.java:164）在org.apache.catalina.authenticator.AuthenticatorBase.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（AuthenticatorBase.java:462）在org.apache.catalina.core.StandardHostValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（StandardHostValve.java:164）在org.apache.catalina.valves.ErrorReportValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（ErrorReportValve.java:100）在org.apache.catalina.valves.AccessLogValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（AccessLogValve.java:562）在org.apache.catalina.core.StandardEngineValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（StandardEngineValve.java:118）在org.apache.catalina.ha.session.JvmRouteBinderValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（JvmRouteBinderValve.java:218）在org.apache.catalina.ha.tcp.ReplicationValve.invoke（Lorg / apache / catalina / connector / Request; Lorg / apache / catalina / connector / Response;）V（ReplicationValve.java:333）在org.apache.catalina.connector.CoyoteAdapter.service（Lorg / apache / coyote / Request; Lorg / apache / coyote / Response;）V（CoyoteAdapter.java:395）在org.apache.coyote.ajp.AjpProcessor.process（Lorg / apache / tomcat / util / net / SocketWrapper;）Lorg / apache / tomcat / util / net / AbstractEndpoint $ Handler $ SocketState; （AjpProcessor.java:301）在org.apache.coyote.ajp.AjpProtocol $ AjpConnectionHandler.process（Lorg / apache / tomcat / util / net / SocketWrapper; Lorg / apache / tomcat / util / net / SocketStatus;）Lorg / apache / tomcat / util / net / AbstractEndpoint $处理器$ SocketState; （AjpProtocol.java:183）在org.apache.coyote.ajp.AjpProtocol $ AjpConnectionHandler.process（Lorg / apache / tomcat / util / net / SocketWrapper;）Lorg / apache / tomcat / util / net / AbstractEndpoint $ Handler $ SocketState; （AjpProtocol.java:169） at org.apache.tomcat.util.net.JIoEndpoint $ SocketProcessor.run（）V（JIoEndpoint.java:302） at java.util.concurrent.ThreadPoolExecutor $ Worker.runTask（Ljava / lang / Runnable;）V（ThreadPoolExecutor.java:886） at java.util.concurrent.ThreadPoolExecutor $ Worker.run（）V（ThreadPoolExecutor.java:908）在java.lang.Thread.run（）V（Thread.java:662）

怀疑2

＆＃34; java.lang.StringBuffer＆＃34;的一个实例加载＆＃34;＆＃34;占用59,216,088（26.35％）字节。该实例由org.apache.myfaces.renderkit.html.util.ReducedHTMLParser @ 0x276990e8引用，由＆＃34; org.apache.catalina.loader.WebappClassLoader @ 0x29592038＆＃34;加载。内存在＆＃34; char []＆＃34;的一个实例中累积。由＆＃34;＆＃34;。

加载

tomcat中集群环境中的内存泄漏

2 个答案: