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Struck threads and high memory consuming are observed while converting Word to PDF

We are observing struck threads and high memory consuming are observed while converting Word to PDF. The scenario is observed when we gave a load test with 150 users are uploading documents. We have Aspose license.

Following are the information of environment where the load test was performed.

 No of receipts: After 400-450 Receipts are created (via Online, Manual and replicate mediums). 400 -450 indicates number of documents converted to PDF.
 Aspose Jar Name and Version : aspose-words-18.6-jdk16.jar
 WebLogic Server Version: 12.1.3.0.0
 OS: Red Hat Enterprise Linux 7.2 (64 bit)
 Attachment size: 1 MB and 5 MB .doc attachment

Following is the exception observed in the logs when struck threads are occurring

<May 22, 2018 12:21:28 AM EST> <[STUCK] ExecuteThread: ‘1’ for queue: ‘weblogic.kernel.Default (self-tuning)’ has been busy for “617” seconds working on the request "Workmanager: default, Version: 0, Scheduled=true, Started=true, Started time: 617193 ms
", which is more than the configured time (StuckThreadMaxTime) of “600” seconds in “server-failure-trigger”. Stack trace:
asposewobfuscated.zzQX.zzS(Unknown Source)
asposewobfuscated.zzQX.zzR(Unknown Source)
asposewobfuscated.zzTS.zzT(Unknown Source)
asposewobfuscated.zzTS.zzL(Unknown Source)
com.aspose.words.zzZK8.zzZe(Unknown Source)
com.aspose.words.zzCL.zzW(Unknown Source)
com.aspose.words.zzCL.zzUe(Unknown Source)
com.aspose.words.zzJZ.zzZ(Unknown Source)
com.aspose.words.zzJZ.zzX(Unknown Source)
com.aspose.words.zzJZ.zzhw(Unknown Source)
com.aspose.words.zzJZ.zzYr(Unknown Source)
com.aspose.words.zzJZ.zzR3(Unknown Source)
com.aspose.words.zzJZ.zzZ(Unknown Source)
com.aspose.words.zzCL.zzX(Unknown Source)
com.aspose.words.zzZJR.zzJ(Unknown Source)
com.aspose.words.zzZJR.zzO(Unknown Source)
com.aspose.words.zzZJR.zzR(Unknown Source)
com.aspose.words.zzZJR.zzX(Unknown Source)
com.aspose.words.zzZJR.zzZ(Unknown Source)
com.aspose.words.zzC4.zzQ(Unknown Source)
com.aspose.words.zzBW.zzG(Unknown Source)
com.aspose.words.zzBJ.zzQ(Unknown Source)
com.aspose.words.zzCL.zzS(Unknown Source)
com.aspose.words.zzCM.zz77(Unknown Source)
com.aspose.words.zzCM.zz78(Unknown Source)
com.aspose.words.zzCL.read(Unknown Source)
com.aspose.words.zzBV.zz77(Unknown Source)
com.aspose.words.zzBV.read(Unknown Source)
com.aspose.words.Document.zzY(Unknown Source)
com.aspose.words.Document.zzZ(Unknown Source)
com.aspose.words.Document.(Unknown Source)
com.aspose.words.Document.(Unknown Source)
com.aspose.words.Document.(Unknown Source)
com.arisglobal.common.pdfconvertor.bus.service.impl.AsposePDFConversionServiceImpl.convertWordToPDF(AsposePDFConversionServiceImpl.java:133)
com.arisglobal.common.pdfconvertor.bus.service.impl.AsposePDFConversionServiceImpl.convertToPDF(AsposePDFConversionServiceImpl.java:97)
com.arisglobal.agx.irt.web.managedbean.IRTDocOperationMBean.convertUploadedFileToPDF(IRTDocOperationMBean.java:777)
com.arisglobal.agx.irt.web.managedbean.IRTDocOperationMBean.validateDocuments(IRTDocOperationMBean.java:260)
com.arisglobal.agx.irt.web.managedbean.IRTDocOperationMBean.validateDocuments(IRTDocOperationMBean.java:193)
com.arisglobal.agx.irt.web.managedbean.IRTDocOperationMBean.uploadManualSupportDocumentAction(IRTDocOperationMBean.java:434)
sun.reflect.GeneratedMethodAccessor6972.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
com.sun.el.parser.AstValue.invoke(AstValue.java:254)
com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
org.apache.myfaces.view.facelets.el.ContextAwareTagMethodExpression.invoke(ContextAwareTagMethodExpression.java:96)
org.primefaces.component.fileupload.FileUpload.broadcast(FileUpload.java:321)
javax.faces.component.UIViewRoot._broadcastAll(UIViewRoot.java:1172)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:354)
javax.faces.component.UIViewRoot._process(UIViewRoot.java:1658)
javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:869)
org.apache.myfaces.lifecycle.ApplyRequestValuesExecutor.execute(ApplyRequestValuesExecutor.java:42)
org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:196)
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:143)
com.arisglobal.framework.ui.core.LifecycleImpl.execute(LifecycleImpl.java:73)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:78)
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
com.arisglobal.framework.ui.filter.GZIPFilter.doFilter(GZIPFilter.java:94)
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
com.arisglobal.agx.common.helper.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
weblogic.work.ExecuteThread.run(ExecuteThread.java:263)

@anand_bhavi_arisglobal_com,

Thanks for your inquiry. To ensure a timely and accurate response, please attach the following resources here for testing:

  • Your input Word document.
  • Please create a simple Java application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing.

As soon as you get these pieces of information ready, we’ll start investigation into your issue and provide you more information. Thanks for your cooperation.

PS: To attach these resources, please zip and upload them.