INC-136817 · Issue 596488
Added database query optimization and cache invalidation logging
Resolved in Pega Version 8.6
Web nodes were going down during deployment due to failed health checks. This was traced to queries firing even when there was no rule change, and was due to unnecessary cache invalidations. An update has been made which will optimize and analyze declarative database queries and capture diagnostic details on any invalidation of the declarative reference information cache.
INC-137235 · Issue 586080
Validations and rules tuning
Resolved in Pega Version 8.6
Issues relating to an extra row being added to auto-populated properties, adding a 'when' visibility to a picklist property, and errors saving nested properties have been resolved, and performance of the overall system has been improved.
INC-137882 · Issue 599137
Hazelcast will be used to determine node presence
Resolved in Pega Version 8.6
When calling logoff from the end user portal, sporadic PresenceStandardLifeCycleListener exceptions were seen during high load periods. This was traced to changes made in the Service Discovery behavior: when there is an issue with the node and heartbeats are missed, the node goes to Safe Mode. This caused the topology to change and trigger clearing off presence sessions, but the node still received service requests and this issue was seen. To resolve this, an updated has been made so the system will rely on the Hazelcast listener instead of service discovery to determine whether a node has left.
INC-138041 · Issue 590556
Handling added to ensure proper Data-Admin-DB-Table name records
Resolved in Pega Version 8.6
As part of property optimization, after exposing the property "SolutionName" using the wizard, the value was not visible in a new column for existing records after the completion of the column population job. This was traced to an issue with DBSchemaDDLExecutor expecting lowercase Data-Admin-DB-Table names, and the wizard has been updated to ensure Data-Admin-DB-Table name records are all lowercase.
INC-138243 · Issue 584898
Performance improvement in When parsing
Resolved in Pega Version 8.6
After upgrade, performance issues were seen in the execution of rules with When conditions. This has been resolved by modifying the code to address some inefficiencies in the parsing method.
INC-138253 · Issue 597570
Handling added to ensure proper Data-Admin-DB-Table name records
Resolved in Pega Version 8.6
As part of property optimization, after exposing the property "SolutionName" using the wizard, the value was not visible in a new column for existing records after the completion of the column population job. This was traced to an issue with DBSchemaDDLExecutor expecting lowercase Data-Admin-DB-Table names, and the wizard has been updated to ensure Data-Admin-DB-Table name records are all lowercase.
INC-138265 · Issue 591903
Improvements made for releasing stream objects
Resolved in Pega Version 8.6
Unreleased stream resources were causing a potential memory leak that could impact performance. This has been resolved by updating the system to explicitly close store, folder and all stream objects when appropriate.
INC-138649 · Issue 585357
Timezone retrieval performance enhancement
Resolved in Pega Version 8.6
In order to improve performance and reduce a potential bottleneck for concurrent threads, PRDateTimeUtilsImpl has been updated to use a common GMT time zone object rather than getting the time zone for each operation for each function call.
INC-138743 · Issue 602445
Updated LegacyPageAdapter with forward links
Resolved in Pega Version 8.6
After upgrade, attempting to submit an assignment from an existing case type did not work, and the message "There was an error processing the 'ValidateTechnicalData' step [(no task)]: java.lang.ClassCastException: com.pega.platform.clipboard.adapters.internal.LegacyPageAdapter cannot be cast to com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl" appeared on screen. Investigation showed that a reference forward link was unexpectedly referring to a LegacyPageAdapter. This has been resolved by implementing get/setNamedPageReferenceForwardLinks in LegacyPageAdapter so LegacyPageAdapter can be cast to a ClipboardPageAPI.
INC-138840 · Issue 599259
Data-Summary reports default will not use the rule resolved setting
Resolved in Pega Version 8.6
An intermittent issue was seen where a query could become stuck for ~2 hours in the database. This has been resolved by setting the default for Data-Summary reports to not use the rule resolved setting.