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dannyc21 Member since 2016 11 posts
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Posted: 3 years ago
Last activity: 3 years 8 months ago
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PageCannotBeSerializedForPassivationException: Unable to passivate page 'pyCorrList'

Keep getting this error in Pega Logs. Most likely come from this OOTB activity we are using ListOfValidCorrs

Please, help me understand how to get rid of this error.

2017-01-22 20:08:55,542 [ES PassivationDaemon] [  STANDARD] [                    ] [                    ] (    mgmt.base.NodeRequestorMgt) ERROR   - Unable to timeout page. No data has been lost at this time. As a best practice, ensure all properties are Serializable to protect against data loss. 
com.pega.pegarules.session.external.mgmt.PageCannotBeSerializedForPassivationException: Unable to passivate page 'pyCorrList' on thread 'TABTHREAD3' in requestor 'H233C9547C3971B7953EE9D31CAA7C1C2'. The following items were not serializable: [Property not serializable: "pyCorrList.pxResults(1).else" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(1).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(3).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(4).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(5).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(6).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(7).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(10).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(11).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(12).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(13).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(14).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(15).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(16).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(17).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(18).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(19).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(20).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(21).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(22).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(23).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(24).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(25).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl", Property not serializable: "pyCorrList.pxResults(27).pyRelativePath" Class: "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl" Problem class: "com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl"]. 
	at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes(NodeRequestorMgt.java:3449) 
	at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.getPageAsBytes(NodeRequestorMgt.java:3403) 
	at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.savePage(NodeRequestorMgt.java:944) 
	at com.pega.pegarules.session.internal.mgmt.base.NodeRequestorMgt.processPassivationQueue(NodeRequestorMgt.java:2712) 
	at com.pega.pegarules.session.internal.async.PassivationDaemon.processPassivationQueue(PassivationDaemon.java:365) 
	at com.pega.pegarules.session.internal.async.PassivationDaemon.run(PassivationDaemon.java:339) 
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1290) 
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1038) 
	at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:847) 
	at com.pega.pegarules.session.internal.async.PassivationDaemon.run(PassivationDaemon.java:301) 
	at java.lang.Thread.run(Thread.java:745)

***Moderator Edit: Vidyaranjan| Updated Categories***

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Accepted Solution
Posted: 3 years ago

Hi Danny,


Page passivation is used to improve system performance by removing pages from the clipboard that have not been accessed by a requestor for a specified period of time. Other pages for that requestor remain in memory, and requestor processing continues normally until that page is needed (such as for read access or for update) and is reactivated into memory.


Similarly, when an entire thread or requestor is inactive, the thread context or requestor context can be passivated (including the associated clipboard pages).


Passivation uses Java serialization when persisting clipboard pages to storage. Two options are used during this process: serialization (encoding) and deserialization (decoding) of data.


By default, the passivation daemon, which operates once per minute, passivates the following:


  • Pages that are idle for at least 15 minutes

  • Threads that are idle for at least 30 minutes

  • Requestors that are idle for at least 60 minutes.

Refer this link to configure timeout passivation at your end :- https://pdn.pega.com/sites/pdn.pega.com/files/help_v722/procomhelpmain… 


I have noticed that for Pega 7.2, there is already a bug reported with similar error message, Could you confirm your version? 


SA :- https://pdn.pega.com/support-articles/error-during-requestor-page-passi…


I am not sure about How to implement serializable in Pega, I will research more and update you if I find anything relevant.


Kindly notify,if it helps.


Regards,


Asif

Posted: 3 years ago

We are using 7.2.1, thanks for the information. Keep me updated if there's a fix for it.
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