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Unable to passivate page error generated multiple times



Unable to passivate page error that is generated more than 50 times a day in all the environments.

Error Messages

Unable to passivate page 'pyDisplay_CapexRequestorPortal' on thread '<savedwork>' in requestor 'HE0EB602308F94E42A97959D12118A225'.

The following items were not serializable: [Property not serializable: "Declare_pyDisplay.pyDisplay(RequestorPortal).pyUIActive(1).pyParameters.CDSystemUserRecents" Class: "", Property not serializable: "Declare_pyDisplay.pyDisplay(CapexRequestorPortal).pyUIElements(1).pyParameters.CDSystemUserRecents" Class: ""].

at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes(
at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes(
at com.pega.pegarules.session.internal.mgmt.PRRequestorImpl.saveWorkInProgress(
at com.pegarules.generated.pzFindAndUpdateElement_071027_gCAp7Qs6l15ZUaI8ZU5Pbg.pzFindAndUpdateElement07_10_27(
at com.pegarules.generated.pzFindAndUpdateElement_071027_gCAp7Qs6l15ZUaI8ZU5Pbg.invoke(
at com.pega.pegarules.generation.internal.library.LibraryRuntime.resolveAndinvokeFunctionViaReflection(
at com.pega.pegarules.generation.internal.library.LibraryRuntime.invokeLibraryRuntime(
at com.pega.pegarules.session.internal.mgmt.Executable.invokeLibraryRuntime(
at com.pega.pegarules.priv.generator.LibrarySupport.resolveAndInvokeFunctionViaReflectionWithException(
at com.pegarules.generated.html_harness.ra_stream_pycwportalcontent_af07705e00d759c482b633eac4986721.execute(

Steps to Reproduce


Root Cause

A defect in Pegasystems’ code or rules. 

The grid related code populated the transient parameters. The portal data model used the parameter page with these parameters. When the passivation agent attempted to passivate, non-serializable exception occurred.


Perform the following local-change:
  1. Open the pyWorkerPortalContent section.
  2. Remove the dynamic container layout with the harness.
  3. Create a new section. Add all the pyWorkerPortalContent configuration to the new section.
  4. Save the section.

Alternatively, upgrade to Pega 7.3.1 or higher.


Published July 31, 2018 - Updated October 8, 2020

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