INC-193507 · Issue 681748
DSS added to control DADT purge
Resolved in Pega Version 8.7
Thread dumps and service restarts were seen when Decision Engine data nodes were working with a very large number of tables. This has been resolved by adding a DSS as part of the CDH layer which will skip CDH DADT that contains pattern DATA_BATCHOUT, for instance "DATA-ADMIN-DB-TABLE DATA-BATCHOUTPR469001" to prevent the deletion causing full cache invalidation of the table information map. With this DSS set to true, when the purge agent runs and deletes the DADT, class cache should no longer be invalidated. With the DSS missing or set to a value other than true, the class cache invalidation will still occur.
INC-193507 · Issue 681747
DSS added to control DADT purge
Resolved in Pega Version 8.5.6
Thread dumps and service restarts were seen when Decision Engine data nodes were working with a very large number of tables. This has been resolved by adding a DSS as part of the CDH layer which will skip CDH DADT that contains pattern DATA_BATCHOUT, for instance "DATA-ADMIN-DB-TABLE DATA-BATCHOUTPR469001" to prevent the deletion causing full cache invalidation of the table information map. With this DSS set to true, when the purge agent runs and deletes the DADT, class cache should no longer be invalidated. With the DSS missing or set to a value other than true, the class cache invalidation will still occur.
INC-170130 · Issue 643776
Null check added for debug logging pointer error
Resolved in Pega Version 8.7
When DEBUG logging was enabled on the class 'com.pega.pegarules.session.internal.mgmt.base.AbstractPageDirectory', system restart resulted in the node failing to startup with a null pointer error in a debug block of this class. A null check has been added to resolve this.
INC-178923 · Issue 660885
Resolved startup error related to business calendar object
Resolved in Pega Version 8.7
An error recorded in the log file when the server started was traced to a cache update that removed the old business calendar object and added the new business calendar object to the business cal list. This has been resolved by updating the system to replace the business calendar object instead of removing the old one from the cache first.
INC-180891 · Issue 663513
Zip compression added for tracer XML
Resolved in Pega Version 8.5.6
After upgrading from Pega 7 to Pega 8, attempting to save and download a trace session would run for a time before pausing and displaying the message "Operation failed. Network error". Investigation showed the tracer was generating a very large XML file which was consuming the heap and causing the issue. To resolve this, an update has been made that will reduce memory usage by using GZip compression on the file. The new behavior will be to always zip tracer XML by default.
INC-198632 · Issue 687582
Handling added to correct class setting during DX-API
Resolved in Pega Version 8.7
When a DX-API call was made (assignments/{ID}/actions/{actionID}/refresh) the ApplyPageInstructions activity was updating the case with an incorrect class, causing the rules from the wrong class to be picked and blocking the case progression. This has been resolved by setting the proper parameter Param.workPage while calling pzApplyPageInstructions from pzUpdateCaseWithRequestBody to calculate the proper class for the content.
INC-183530 · Issue 668470
Null check added for missing compiler path
Resolved in Pega Version 8.7
After upgrading from Pega 7.3 to Pega 8.6, libraries were not loading correctly and a java error was seen. This was traced to the compiler default path values not getting picked from DSS / settings->compiler->Default paths, which was caused by a null value for the DASS setting in the systemSettings map. To resolve this, a null check has been added and an update has been made to use getEngineDynamic to ensure this setting is picked on node startup.
INC-193767 · Issue 683299
Handling updated for validating properties with a FieldValue
Resolved in Pega Version 8.7
Running a report which included a property calculated by a Declare Expression generated an excessive number of log messages indicating "Error occurred while executing forward chaining on page 'pyReportContentPage.pxResults". Degraded system performance, stack overflow, and other similar issues were seen. This was traced to an infinite loop that resulted from a missed use case for a Report Definition with a Target property of a Declare Expression with FieldValue, and has been resolved by disabling autochain while validating properties with a FieldValue.
INC-193767 · Issue 683298
Handling updated for validating properties with a FieldValue
Resolved in Pega Version 8.5.6
Running a report which included a property calculated by a Declare Expression generated an excessive number of log messages indicating "Error occurred while executing forward chaining on page 'pyReportContentPage.pxResults". Degraded system performance, stack overflow, and other similar issues were seen. This was traced to an infinite loop that resulted from a missed use case for a Report Definition with a Target property of a Declare Expression with FieldValue, and has been resolved by disabling autochain while validating properties with a FieldValue.
INC-175672 · Issue 652944
ServicePackage threads properly released
Resolved in Pega Version 8.7
After completing a system stress test, the requestor pool threads for the ServicePackage were not released. Investigation showed that the threads were waiting for Data Pages to be loaded in the background even though there was no background job corresponding to those data pages in the Async Services pool. This has been resolved by making an update to avoid removing the object handlers when the load-datapage finds that an entry exists with a NOT_STARTED state.