INC-141579 · Issue 591852
Enhancement added for node heartbeat recovery process
Resolved in Pega Version 8.3.5
Nodes were not showing up in the admin portal even though they were up and running and could be seen in the pr_sys_statusnodes table. The exception "An exception was encountered while invoking the cluster membership listener callback" was seen. All nodes became visible again after multiple restarts. The root cause was traced back to a temporary database connectivity problem. The database itself was fine according to database monitoring reports, but a network problem, a slow database query, or another issue prevented Pega from establishing a connection for more than a minute. An enhancement has been made to resolve this: if a node becomes unhealthy due to the service registry missing due to a failed heartbeat, the heartbeat will try to recover after 60 seconds and keep trying every 30 seconds until it succeeds.
INC-142674 · Issue 594496
Enhancement added for node heartbeat recovery process
Resolved in Pega Version 8.3.5
Nodes were not showing up in the admin portal even though they were up and running and could be seen in the pr_sys_statusnodes table. The exception "An exception was encountered while invoking the cluster membership listener callback" was seen. All nodes became visible again after multiple restarts. The root cause was traced back to a temporary database connectivity problem. The database itself was fine according to database monitoring reports, but a network problem, a slow database query, or another issue prevented Pega from establishing a connection for more than a minute. An enhancement has been made to resolve this: if a node becomes unhealthy due to the service registry missing due to a failed heartbeat, the heartbeat will try to recover after 60 seconds and keep trying every 30 seconds until it succeeds.
INC-137255 · Issue 584910
Resolved Cassandra query read/write latency
Resolved in Pega Version 8.3.5
Read/write latency was seen when certain Cassandra queries were triggered by the system. This was traced to an unusual case where a flush was not done for an exceptionally long time period, and has been resolved.
INC-181148 · Issue 663164
Documentation updated for altering data type to Timestamp to avoid duplicate data in Decision Hub
Resolved in Pega Version 8.5.6
By default, the pxOutComeTime column has a Date data type in the pr_data_ih_fact table. This may cause duplicate data issues. To resolve this, the 8.5 and 8.6 installation and upgrade guides for Pega Customer Decision Hub have been updated to include a new procedure "Modifying column definitions to use the TIMESTAMP datatype in an Oracle database". Performing this procedure will allow users to avoid the duplicate data issue. All documents are available from the Pega Customer Decision Hub product page.
INC-178002 · Issue 663768
Restore point handling updated for absent pzpvstream column
Resolved in Pega Version 8.5.6
While executing the “get restore point” action for rollback, a PZPVSTREAMerror error occurred with the message "(util.HistoryCollectorDataModel) WARN|Rest|SystemManagement|v2|restorepoint - History collection for the table will be slow because it does not have all of the required columns". This was a missed use case for Robotics Automation not having a pzpvstream column for one of the tables; this has been corrected with a check to validate for pzpvstream column so the system will not seek history records if the pzpvstream column is not present.
INC-185117 · Issue 680898
Check added to disable offset support for older versions of Oracle
Resolved in Pega Version 8.5.6
An ORA-00933 error was generated after upgrading from Pega 7.1 to Pega 8.5. This was traced to a conflict between Oracle 11g and the Pega 8.5 platform related to an OFFSET statement being added to a query for a version of Oracle that doesn't support it. The preferred solution is to upgrade Oracle to address this, but in order to support backwards compatibility a check has been added which will disable offset support in Oracle if productversion <=11.
INC-189781 · Issue 677815
Database Transaction Log update overflow resolved
Resolved in Pega Version 8.5.6
When automatic.resume=false was encountered uring an update, cleaning up the existing codeset from previous updates ended up filling up the database transaction logs and caused the update to fail. This has been resolved by updating the process of clearing the codeset so it doesn't overflow the transaction log.
INC-190722 · Issue 676400
Ruleset Restoration Utility repaired
Resolved in Pega Version 8.5.6
Attempting to use the standard Ruleset Restoration utility after update was resulting in a "Status:fail Operator:Unauthenticated or not available Node:No ID available" error message. This was a missed use case for the refactoring done around importing rules, and was caused by the utility calling the deprecated Importable.isValidImport() method. This has been resolved by updating the import activity to restore its functionality.
INC-196415 · Issue 686314
Performance improvements for revalidate and save
Resolved in Pega Version 8.5.6
In order to improve performance when working with very large numbers of class definitions, an update has been made to optimize the revalidate and save process by avoiding looking up all classes on the system instead using ClassDefinition for existence and checking ancestor data to ensure class is a Rule- or Data- descendant.
INC-202677 · Issue 698988
Handling added for missing expose.accessGroup property
Resolved in Pega Version 8.5.6
After exposing an existing page group and page list properties along with single value properties using a declare index, running the Column Populator tool prpcServiceUtils to populate the historical data resulted in the single value properties being updated in the exposed column properly, but the page group and page list properties were not updated in the declare index table. On new case creation the declare index tables were updated. This was traced to the default expose.accessGroup not being set for the user, and has been resolved by adding a check and handling that will add the missing property in prpcserviceutils.properties defining the access group for the Rule-Declare-Index of the classes being exposed if it is not present.