Question

最近，我在新的jasper报告应用程序中，在重负载下测试时，我开始获得PermGen空间问题。通过在我的jrxml文件中指定language="groovy，我使用groovy作为报表的表达式计算器。作为groovy表达式，在运行时创建类，我怀疑这是permgen填充的根本原因。我尝试设置jvm选项，如 -XX：+ UseConcMarkSweepGC -XX：+ CMSClassUnloadingEnabled ，但它没有帮助解决问题。即使在excpetion stacktrace（下面给出）中，classloader也会尝试在失败时将新构建的类加载到permgen中。有没有人使用groovy与jasper报告遇到这个问题？我的报告使用jasper提供的AsynchronousFillHandle类提供的功能在一个单独的线程中异步填充。这是否与类加载器有任何连接而不释放加载的运行时类？任何建议都将不胜感激。

 Exception in thread "Thread-563" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-565"        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(Unknown Source)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at org.codehaus.groovy.reflection.ClassLoaderForClassArtifacts.define(ClassLoaderForClassArtifacts.java:42)
        at org.codehaus.groovy.reflection.ClassLoaderForClassArtifacts$1.run(ClassLoaderForClassArtifacts.java:86)
        at org.codehaus.groovy.reflection.ClassLoaderForClassArtifacts$1.run(ClassLoaderForClassArtifacts.java:84)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.codehaus.groovy.reflection.ClassLoaderForClassArtifacts.defineClassAndGetConstructor(ClassLoaderForClassArtifacts.java:84)
        at org.codehaus.groovy.runtime.callsite.CallSiteGenerator.compilePogoMethod(CallSiteGenerator.java:215)
        at org.codehaus.groovy.reflection.CachedMethod.createPogoMetaMethodSite(CachedMethod.java:220)
        at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.createCachedMethodSite(PogoMetaMethodSite.java:206)
        at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.createPogoMetaMethodSite(PogoMetaMethodSite.java:182)
        at groovy.lang.MetaClassImpl.createPogoCallCurrentSite(MetaClassImpl.java:3034)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallCurrentSite(CallSiteArray.java:93)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
        at Section_1_1348126593121_343308.evaluate(calculator_Section_1_1348126593121_343308:253)
        at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:190)
        at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:591)
        at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:559)
        at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:884)
        at net.sf.jasperreports.engine.fill.JRFillTextField.evaluateText(JRFillTextField.java:421)
        at net.sf.jasperreports.engine.fill.JRFillTextField.evaluate(JRFillTextField.java:406)
        at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:257)
        at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:457)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2037)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:771)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportContent(JRVerticalFiller.java:301)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:148)
        at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:909)

Answer 1

作为第一个赌注...... 尝试增加perm gen大小，如下所示：

-XX:MaxPermSize=128m

默认为64米。

希望这有帮助

Jasper报道 - OutOfMemoryError：PermGen空间

1 个答案: