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-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-194490 · Issue 685238
Parameter handling updated for GetRepositoryFolderName
Resolved in Pega Version 8.5.6
An UnresolvedAssemblyError was generated with an Unauthenticated Thread exception after opening the declare expression Embed-Application-StorageProvider pyFolder and performing a private edit. This error was traced to the Rule-Utility-Function call "pxGetRepositoryFolderName()", which was expecting a parameter "tools" which was not being passed from the declare expression rule. To resolve this, the pyFolder and pyFoldeIf declare expressions and pzsetContentStorage have been modified to pass 'tools' as a parameter to pxGetRepositoryFolderName.
INC-194806 · Issue 680967
Performance improvement for message processing
Resolved in Pega Version 8.5.6
Severe performance degradation was seen for message processing in pdc-central after update. Investigation showed there was an issue with a write lock not not being acquired while reloading the datapage definition, causing concurrent dirty reads and multiple definition reloads. To resolve this, DeclarativePageDefinitionCacheImpl has been updated to acquire a write lock to prevent dirty reads of the same stale data page definition while reloading.
INC-195586 · Issue 698859
Updated access group handling for CurrentWorkPool property
Resolved in Pega Version 8.5.6
After update, the pxThread.pxCurrentWorkPool property was not properly populated in App Requestors when the activity was called from Rest service. This was caused by a difference in the authentication check after a security modification, and has been resolved.
INC-197479 · Issue 695024
ClusterAndDBCleaner updated to with with Oracle query limits
Resolved in Pega Version 8.5.6
The pzClusterAndDBCleaner job scheduler was not able to cleanup data in pr_op_data session table due to the delete query formed to clean up this table throwing "ora-01795 maximum number of expressions in a list is 1000 oracle 19c" exception. This has been resolved by splitting requestor IDs into batches of 1000.
INC-199192 · Issue 689036
Check added to ensure StepPage generation for Top keyword
Resolved in Pega Version 8.5.6
A ClassCastException was thrown when top page is used, indicating "com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl cannot be cast to com.pega.pegarules.pub.clipboard.ClipboardPage". This has been resolved by adding a check which will generate a myStepPage for Keyword "Top" as necessary.
INC-199320 · Issue 690621
Corrected duplicate record error message
Resolved in Pega Version 8.5.6
When inserting a duplicate record in a grid, the error was shown at the harness level instead of the record level. This was traced to the error messages being removed from the step page, and has been resolved by updating the system so messages will not be cleared if the same value is being set.
INC-199341 · Issue 694713
Content-type values made consistent
Resolved in Pega Version 8.5.6
The content-type for service APIs was returned as 'text' for 401 errors when using a custom authentication type instead of the parent-type/child-type format such as text/plain, text/html, application/json, etc. This has been corrected.
INC-199679 · Issue 688736
Handling added to email encoding for ISO-8859-8-i charset
Resolved in Pega Version 8.5.6
After update, cases were intermittently not getting created from inbound email and the process became stuck. This has been resolved by adding handling to replace the ISO-8859-8-i charset with ISO-8859-8 for encoding the mail content.