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 Danny Cheung (dannyc21)
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dannyc21 Member since 2016 11 posts
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Posted: January 22, 2017
Last activity: February 21, 2017
Posted: 22 Jan 2017 23:55 EST
Last activity: 21 Feb 2017 1:04 EST
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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)

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Accepted Solution

Posted: 4 years ago
Posted: 24 Jan 2017 4:30 EST
Mohammad Asif Hasan (Asif Hasan)
PEGA
Senior Technical Solutions Engineer
Pegasystems Inc.
IN

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.htm#engine/passivation/eng-timeout-passivation-ref.htm 


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-passivation


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