INC-159834 · Issue 632248
StackOverFlow logging improved
Resolved in Pega Version 8.5.4
Enhanced diagnostic logging information has been added to help find issues when StackOverFlow errors occur.
INC-161984 · Issue 638857
Web Tier busy threads released on timeout
Resolved in Pega Version 8.5.4
Tomcat Web Tier Busy Threads were not being correctly released, causing stability and performance problems that included health check pings not receiving a thread to service the request so the node was marked as bad, users were quiesced, and the node replaced. Investigation showed the 'put' on the blocking queue did not time out when the queue was full and waited indefinitely, keeping the thread blocked. To resolve this, the system will use 'offer' on the blocking queue instead of 'put' to force thread release on timeout. In addition, debug logs have been added to understand when the offer (or Put) does not succeed and the state of the queue that is causing this issue; the debug logs for class com.pega.pegarules.session.internal.serverpush.RoboticAutomationImpl should be enabled only if the thread busy issue is observed and for limited time window while actively debugging.
INC-164794 · Issue 637992
Apache Commons libraries updated
Resolved in Pega Version 8.5.4
Apache commons-codec has been updated to version 1.15 , and Apache commons-io has been updated to version 2.7.
INC-171587 · Issue 652187
Resolved Push Node Daily Information exception
Resolved in Pega Version 8.5.4
The "Push Nodes Info Daily" agent was generating an exception on each of the nodes. This has been resolved by enhancing the PegaAESRemote code to handle the exception and get the node info locally, then push it to the console when it is not able to get it via the cluster management API.
INC-173162 · Issue 650794
Certificate match will use Subject Distinguished Name
Resolved in Pega Version 8.5.4
Signature verification was failing due to the system not finding the matching root certificate for the chain. The root certificate was in the trust store, but the system found a different certificate first and that other certificate (an intermediate certificate) was not considered a valid certificate for validating the whole certificate chain. This was traced to filtering on the Issuer Distinguished Name (DN) instead of the Subject DN and was due to intermediate certificates potentially having the same Issuer as a root certificate (e.g. if that root certificate was used to create the intermediate certificate). To resolve this, an update has been made to check the Subject DN instead of Issuer DN.
INC-174298 · Issue 650258
Instance count logic updated
Resolved in Pega Version 8.5.4
A performance issue was seen during upgrade that resembled an upgrade hang. This was caused by a combination of incorrect logic in DDLGenerator.getInstanceCountForClass() around counting instances of 'core' classes and all of the site history-data- tables being mapped to the same table that had 1.4+ billion rows. This behavior has been addressed with more correct query logic while performing instance counts. In addition, instance count will be supressed during command line invocations (prpcUtils, platform upgrade).
INC-202677 · Issue 698990
Handling added for missing expose.accessGroup property
Resolved in Pega Version 8.6.4
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.
INC-205181 · Issue 697802
Warnings pull from report definition page
Resolved in Pega Version 8.6.4
When a report definition filter was used in the "Class instances to include" section of the Product rule, severe warnings appeared noting "Report definition filter performance issues for LookupDataMigration : Using a custom HTML control to format a column may result in poor performance displaying query results. Consider using auto-generated HTML controls". However, the report definition used, LookupDataMigration, has no Custom HTML control in the latest version of the rule, and the "CheckForWarnings" rule for the product was running a report definition in the "Index-Warning" class which has the warnings for all the versions of the rule. This was due to warnings being displayed in the product for the report definition filter without applying rule resolution for report definition, resulting in warnings from all report definition version rules from a ruleset given a report definition name. This has been resolved by adding an update which will use Obj-Open to read the warnings from report definition page instead of looking up for warnings from Index-Warnings table.
INC-205453 · Issue 706568
Pega Keystore supported for hotfix signature verification
Resolved in Pega Version 8.6.4
In order to support custom trust managers which require an alternate method for supplying the root certificate via a platform trust store, an enhancement has been added to allow Pega Keystore to be used as a hotfix verification source. Detailed information on this can be found in https://docs.pega.com/keeping-current-pega/87/verifying-hotfix-authenticity-using-pega-keystore
INC-208516 · Issue 705100
Patchdate values made unique
Resolved in Pega Version 8.6.4
The hotfix manager was incorrectly indicating that a previous hotfix was not installed or was partially installed and should be reinstated. This scenario was created during security updates where the missing/incomplete hotfix had been deliberately deleted from the database, and has been resolved by adding an update which will force patchdate to be unique when adding duplicate code resources during tests.