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  1. Struts 2
  2. WW-4281

com/opensymphony/xwork2/util/FileManager.fileNeedsReloading lead to high cpu using

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.2.3, 2.3.16
    • Fix Version/s: None
    • Component/s: Annotations
    • Labels:
      None
    • Environment:

      OS : IBM AIX 6.1
      CPU : ppc 64-bit
      JDK : IBM J9 VM 1.6 SR14 64-bit
      WebLogic Server : 11gR1 ps5(10.3.6)
      Apache Tomcat : 7.0.42
      Struts 2.2.1、2.2.3、2.3.16

    • Flags:
      Important

      Description

      We found high cpu using when we used loadrunner to make a load test to our application which is deployed on tomcat and weblogic server, then we took some thread dump (kill -3 pid), the java virtual machine generated some files which name liked javacore.<date>.<pid>.<serial number>.

      By analyzing there javacore files, we found some threads were reloading class, it caused high cpu using.

      com/opensymphony/xwork2/util/FileManager.fileNeedsReloading

      "[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" J9VMThread:0x00000100169A1200, j9thread_t:0x00000100167A0B00, java/lang/Thread:0x0700000008420EF0, state:CW, prio=5
      at java/io/UnixFileSystem.getBooleanAttributes0(Native Method)
      at java/io/UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:239(Compiled Code))
      at java/io/File.exists(File.java:744(Compiled Code))
      at weblogic/utils/classloaders/DirectoryClassFinder.getSource(DirectoryClassFinder.java:42(Compiled Code))
      at weblogic/utils/classloaders/JarClassFinder.getSource(JarClassFinder.java:50(Compiled Code))
      at weblogic/utils/classloaders/MultiClassFinder.getSource(MultiClassFinder.java:67(Compiled Code))
      at weblogic/utils/classloaders/MultiClassFinder.getSource(MultiClassFinder.java:67(Compiled Code))
      at weblogic/utils/classloaders/MultiClassFinder.getSource(MultiClassFinder.java:67(Compiled Code))
      at weblogic/application/utils/CompositeWebAppFinder.getSource(CompositeWebAppFinder.java:71(Compiled Code))
      at weblogic/utils/classloaders/MultiClassFinder.getSource(MultiClassFinder.java:67(Compiled Code))
      at weblogic/utils/classloaders/MultiClassFinder.getSource(MultiClassFinder.java:67(Compiled Code))
      at weblogic/utils/classloaders/CodeGenClassFinder.getSource(CodeGenClassFinder.java:31(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.findResource(GenericClassLoader.java:228(Compiled Code))
      at java/lang/ClassLoader.getResource(ClassLoader.java:456(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.getResource(GenericClassLoader.java:189(Compiled Code))
      at weblogic/utils/classloaders/ChangeAwareClassLoader.getSuperResource(ChangeAwareClassLoader.java:147(Compiled Code))
      at weblogic/utils/classloaders/ChangeAwareClassLoader.getResource(ChangeAwareClassLoader.java:127(Compiled Code))
      at com/opensymphony/xwork2/util/ClassLoaderUtil.getResource(ClassLoaderUtil.java:103(Compiled Code))
      at com/opensymphony/xwork2/util/ClassLoaderUtil.getResource(ClassLoaderUtil.java:108(Compiled Code))
      at com/opensymphony/xwork2/util/FileManager.fileNeedsReloading(FileManager.java:69(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.loadFile(AnnotationActionValidatorManager.java:349(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildClassValidatorConfigs(AnnotationActionValidatorManager.java:243(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:326(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:314(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:314(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:81(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:123(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:115(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:110(Compiled Code))
      at com/opensymphony/xwork2/validator/ValidationInterceptor.doBeforeInvocation(ValidationInterceptor.java:222(Compiled Code))
      at com/opensymphony/xwork2/validator/ValidationInterceptor.doIntercept(ValidationInterceptor.java:261(Compiled Code))
      at org/apache/struts2/interceptor/validation/AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68(Compiled Code))
      at com/opensymphony/xwork2/interceptor/MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98(Compiled Code))
      at com/opensymphony/xwork2/DefaultActionInvocation.invoke(DefaultActionInvocation.java:248(Compiled Code))
      .................................

      "[ACTIVE] ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'" J9VMThread:0x000001001582A200, j9thread_t:0x000001001578C940, java/lang/Thread:0x070000000A8777D8, state:CW, prio=5
      at java/util/zip/ZipFile.getEntry(Native Method)
      at java/util/zip/ZipFile.getEntry(ZipFile.java:186(Compiled Code))
      at java/util/jar/JarFile.getEntry(JarFile.java:270(Compiled Code))
      at java/util/jar/JarFile.getJarEntry(JarFile.java:253(Compiled Code))
      at sun/misc/URLClassPath$JarLoader.getResource(URLClassPath.java:1005(Compiled Code))
      at sun/misc/URLClassPath$JarLoader.findResource(URLClassPath.java:983(Compiled Code))
      at sun/misc/URLClassPath.findResource(URLClassPath.java:266(Compiled Code))
      at java/net/URLClassLoader$4.run(URLClassLoader.java:763(Compiled Code))
      at java/security/AccessController.doPrivileged(AccessController.java:298)
      at java/net/URLClassLoader.findResource(URLClassLoader.java:760(Compiled Code))
      at java/lang/ClassLoader.getResource(ClassLoader.java:456(Compiled Code))
      at java/lang/ClassLoader.getResource(ClassLoader.java:451(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.getResourceInternal(GenericClassLoader.java:170(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.getResource(GenericClassLoader.java:184(Compiled Code))
      at weblogic/utils/classloaders/FilteringClassLoader.getResource(FilteringClassLoader.java:171(Compiled Code))
      at java/lang/ClassLoader.getResource(ClassLoader.java:451(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.getResource(GenericClassLoader.java:189(Compiled Code))
      at java/lang/ClassLoader.getResource(ClassLoader.java:451(Compiled Code))
      at weblogic/utils/classloaders/GenericClassLoader.getResource(GenericClassLoader.java:189(Compiled Code))
      at weblogic/utils/classloaders/ChangeAwareClassLoader.getSuperResource(ChangeAwareClassLoader.java:147(Compiled Code))
      at weblogic/utils/classloaders/ChangeAwareClassLoader.getResource(ChangeAwareClassLoader.java:127(Compiled Code))
      at com/opensymphony/xwork2/util/ClassLoaderUtil.getResource(ClassLoaderUtil.java:93(Compiled Code))
      at com/opensymphony/xwork2/util/FileManager.fileNeedsReloading(FileManager.java:69(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.loadFile(AnnotationActionValidatorManager.java:349(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildClassValidatorConfigs(AnnotationActionValidatorManager.java:243(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:335(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:314(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:314(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.buildValidatorConfigs(AnnotationActionValidatorManager.java:314(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:81(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:123(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:115(Compiled Code))
      at com/opensymphony/xwork2/validator/AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:110(Compiled Code))
      at com/opensymphony/xwork2/validator/ValidationInterceptor.doBeforeInvocation(ValidationInterceptor.java:222(Compiled Code))
      at com/opensymphony/xwork2/validator/ValidationInterceptor.doIntercept(ValidationInterceptor.java:261(Compiled Code))
      at org/apache/struts2/interceptor/validation/AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68(Compiled Code))
      ..............................

        Attachments

        1. high cpu&threaddump.rar
          1.29 MB
          Chris Tian
        2. Tomcat-threaddump.rar
          325 kB
          Chris Tian
        3. Weblogic-Struts 2.2.1 - threaddump.rar
          1.13 MB
          Chris Tian
        4. Weblogic-Struts 2.3.16 - threaddump.rar
          1.44 MB
          Chris Tian

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              tdy218 Chris Tian
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              Dates

              • Created:
                Updated:
                Resolved: