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).
SR-D32381 · Issue 519465
Transient property passivation handling improved
Resolved in Pega Version 8.2.6
Frequent "com.pega.pegarules.pub.PRRuntimeException" errors were seen in the production log file while working on the WO. This was traced to corruption in the blob caused by transient properties during passivation. To resolve this, corrections have been made to the handling for the transient property entries in the blob.
SR-D41229 · Issue 513589
Enhancements added for using AWS file repositories
Resolved in Pega Version 8.2.6
Enhancements have been added to improve the use of AWS file storage: - Logging for AWS SDK connection metrics can be activated on a per-repository basis, either through the ruleform or through the DSS `storage/class/:/enableMetrics`. - INFO logging can be enabled on PegaAWSSDKMetricReporter to periodically output averages of recorded metrics for all registered S3 repositories with metric collection enabled, or INFO logging can be enabled on PegaAWSRequestMetricCollector to output recorded metrics on every client call for all registered S3 repositories with metric collection enabled. - The interval at which PegaAWSSDKMetricReporter logs metrics at can be configured with the DASS `storage/AWSSDK/metricReportingInterval`. This DASS is a system-wide setting, and not a per-repository setting. The default reporting interval is 90 seconds, and metric collection is disabled on all repositories by default.
SR-D42241 · Issue 518639
CyberArk support has been added for this release
Resolved in Pega Version 8.2.6
CyberArk support has been added for this release.
SR-D43740 · Issue 514124
Added support for Helper Text Question Mark with visibility condition
Resolved in Pega Version 8.2.6
The Helper Text Question Mark was not displaying if the control was configured with "Help icon with overlay on hover" combined with a visibility condition. This was a missed use case, and the expression visibility support for controls.changes have now been added in the pzpega_ui_DLCellTemplate.js file.
SR-D45622 · Issue 521661
Sorting on Grid works with declare expression property
Resolved in Pega Version 8.2.6
If a property with a declare expression was used in a column, the sorting on that column was not working. This was traced to reference errors when Grid used the engine API pega.sortPageList to sort the page list / data page, and has been corrected.