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Support Article

System is not handling Data Pages properly

SA-22183

Summary




Developer has a PageList (P1) inside which there is a PageList(P2) property that refers to Data Page (list type). This is loaded at Thread level.

The scenario is that a Page is deleted from the PageList (P1) mentioned above. Due to this the reference to Data Page(inside P2) is lost 


Error Messages



No error on screen, data on WorkObject (WO) is lost.

Steps to Reproduce

  1. Create a WO with three Pages in a pagelist.
  2. In next step, delete page 2 of the page list and complete details on Page 1 and Page 3 with one property referencing Data Page.
  3. Submit the WO, no error is thrown.
  4. Close and Open the WO on review. The reference to the Data Page on Page 3 is no longer available, causing errors.


Root Cause



A defect in Pegasystems’ code or rules:

This specific issue occurs when database storageversion 7 is used.  Sometimes different pages can share directstreamV7 object and hence there is a chance of getting data lost.

As a fix added hard check to prevent data loss of page lists.


Resolution



Apply HFix-26996.
Suggest Edit

Published May 14, 2016 - Updated October 8, 2020

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