INC-173162 · Issue 650795
Certificate match will use Subject Distinguished Name
Resolved in Pega Version 8.7
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.
SR-D51554 · Issue 514064
Local UUID cache will be updated when merge event is detected
Resolved in Pega Version 8.1.7
Cluster-related issues were seen in multiple production clusters. For some nodes in the cluster the Cluster Management screen showed all expected nodes with valid Node IDs displayed, and on other nodes the Cluster Management screen showed the node ID of itself, SERVER@localhost:5701. On an impacted node displaying the wrong ID, the Node Information landing page did not work and displayed the error "Unable to execute job on ." Multiple advanced agents running on nodes in the affected clusters, both with correct and incorrect IDs, also failed with a similar error "Unable to execute job on <node's job id>". This was traced to a merge performed after a split brain. To resolve this, the code has been updated to handle merge events: when the node UUID is changed as part of a split brain recovery, the local UUID cache will be updated when the merge event is detected.
INC-174625 · Issue 655242
Admin Studio will consider cluster protocol when returning listener status
Resolved in Pega Version 8.7
When using a few nodes in standalone mode for BIX extract combined with server nodes using Hazelcast, opening the admin studio pages with service discovery caused an error to be thrown. This was traced to the system writing an entry to pr_sys_statusnodes table as an embedded node whenever a BIX extract was triggered, causing those standalone nodes to be incorrectly considered by the listener landing page. This has been resolved by configuring the system to either return the local member when the cluster protocol is standalone or to return all Hazelcast members if the cluster protocol is Hazelcast.
SR-D20423 · Issue 503447
Improved upgrade handling for tables using classes with property references
Resolved in Pega Version 8.1.7
After upgrade, some page property values were blank and exposed database columns did not contain the values. Investigation showed that the reference properties did not have context and hence column population was not able to determine their value. To resolve this, instead of doing column population for all the columns, the system will identify classes that have property references and that are being optimized as part of upgrade process and maintain a list of specific columns to update.
INC-148154 · Issue 602921
Hot Fix Manager updated to use installation order for schema import
Resolved in Pega Version 8.3.5
Schema changes were not being imported during the hot fix manager DL import process. Investigation showed this was due to hotfixes in the DL being iterated over from newest to oldest, causing older hotfixes to replace the value added to a map by the newer. To resolve this, the system has been updated to use hotfix install order, which considers selected and dependent hotfixes, rather than ordering newest to oldest. This ensures that newer table representations will override older rather than the other way around.
INC-181941 · Issue 664808
Handling added for using virtual network interface for Stream Services startup
Resolved in Pega Version 8.7
After update, the restart of any node failed with the error "Unable to create DSM service DATA-DECISION-SERVICE-STREAMSERVER DEFAULT". This has been resolved by adding support for allowing stream service to start on the virtual network interface in cases where it was explicitly configured via the "cluster/hazelcast/interface".
INC-196447 · Issue 684644
Enhancements added for external Kafka Stream Service
Resolved in Pega Version 8.7
To ensure data privacy when using multi-tenant Stream Service hosted on a single Kafka cluster, access will be authorized based on ACLs when a tenant sends direct requests to Kafka. In addition, all Kafka resources (topics and consumer groups) are now able to contain a prefix naming convention which can be used for tenants. This is handled through using a <env name="services/stream/name/pattern" value="{tenant.name}-{environment}-{stream.name}"/> prconfig setting to set the stream name pattern. For example, if the tenant.name is resolved into "companyname", environment into "prod1", and the stream dataset name is pyFTSIncrementalIndexer, then the Topic name created on the external Kafka will be companyname-prod1-pyFTSIncrementalIndexer.
INC-196415 · Issue 686313
Performance improvements for revalidate and save
Resolved in Pega Version 8.7
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-196842 · Issue 683766
APIs updated for sending large attachments with MSGraph
Resolved in Pega Version 8.7
Sending mail using MSGraph was failing with the exception "Error during http request" when attachments were greater than 3MB. This was traced to changes made by Microsoft in the Graph API implementation which caused it to throw a runtime exception instead of the expected 413 status code and relevant message for the attachment size. To resolve this, an update has been made to ensure that any attachment larger than 3MB is sent via the Microsoft Outlook API.
INC-161984 · Issue 638858
Web Tier busy threads released on timeout
Resolved in Pega Version 8.7
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.