SR-D84876 · Issue 547688
Performance improvement for Oracle 12c queries
Resolved in Pega Version 8.2.7
In order to compensate for a known issue with Oracle 12c that can cause repeated queries at certain times to cause database contention, Oracle pre/post processing steps have been added to improve performance in this environment.
SR-D84880 · Issue 546889
Null check added to resolve addmapcasetomap error
Resolved in Pega Version 8.2.7
Using a createcase flow shape to create child cases by looping on a page list on the parent case resulted in pzaddmapcasetomap throwing an exception related to the activity pzLoadCaseHierarchyWrapper in step 5. This was traced to a page being removed after the list of pages was received in findPageByHandle, and has been resolved by adding a null check.
SR-D87605 · Issue 547296
Indexes and tables updated to improve purge query performance
Resolved in Pega Version 8.2.7
Due to work done previously, purge queries to clean up the application ruleset index and application hierarchy_flat tables were running slowly or not returning the expected results. This has been resolved.
SR-D87673 · Issue 552484
IACservice security updated
Resolved in Pega Version 8.2.7
Security updates have been made which now require authentication to consume the services from IACservice packages.
SR-D87870 · Issue 548772
Resolved putting JMS Message through JMS Listener interface
Resolved in Pega Version 8.2.7
When using MS Listener integrated into Pega running on WebSphere Liberty, the listener was running correctly and able to consume JMS Messages. The JMS Listener ruleform provided options to browse and put JMS messages. However, when attempting to put a message into the destination queue, an error occurred. Investigation showed that if the resource lookup was using 'Resource references' on JMS Listener, the naming context was initialized with a null hashtable. This has been corrected by modifying AddJMSMessage and GenericViewJMSMessage to initialize the naming context with the default constructor RefreshJMSMessages to set JNDIServerName and pass the current parameter page when calling GenericViewJMSMessage.
SR-D91894 · Issue 557220
Class Loader cache values wrapped with WeakReference for improved cleanup
Resolved in Pega Version 8.2.7
Out Of Memory exceptions due to Metaspace were observed on Web tier instances running with a max Metaspace size of 2GB. Investigation showed that in PRClassLoaderDB, mLoaderCache values were wrapped with a SoftReference. To resolve this, the Class Loader cache values will be wrapped with a WeakReference, allowing the cache to free memory when it is no longer needed. JVM options has also been added to switch types of References being used if there is a preference.
SR-D92707 · Issue 551694
QP exception handling improved
Resolved in Pega Version 8.2.7
There is currently a configurable maximum size limit for QP items of 5MB. If the message size exceeded 5 MB, the message failed to be enqueued to Kafka, but still ended up in the delayed message table where it remained. This caused issues with pzDelayedQueueProcessorSchedule JS as a result. To resolve this, the system has been updated to better detect Kafka errors related with message size and move any corrupted item to the broken message queue with the appropriate message attached.
SR-D94019 · Issue 553783
Alerting features added for Listeners
Resolved in Pega Version 8.2.7
An enhancement has been added for Email Listener alerts. At the end of each listener's processing cycle, the system will determine the average processing time per message, the total processing time of the listener, the total unread messages count, and total number of messages processed. In each AESRemote agent run, this data will be published to the PDC, where it will be analyzed and any necessary alerts raised.
INC-176138 · Issue 723084
Performance improvements for save-as
Resolved in Pega Version 8.8
Performance issues were seen when using save-as for rules such as Declare expression, When rules, activity, etc. This was traced to a very large number of extra database queries that were being executed while building the Declarative Cache. To resolve this, an update has been made so the queries used for the Declarative Cache will only be executed when required.
INC-187857 · Issue 700855
Added debug logging and exception recovery for unexpected data object
Resolved in Pega Version 8.8
When rules were complied in lower environment and deployed into production, they later became corrupted and system behavior changed. The error "Java generation failed: caught exception while expanding property pyGetCasePredictionsByClassName on page CurrentRecord" was generated. Investigation showed the auto-populate property pyGetCasePredictionsByClassName was attempting to get the metadata property "pzDataObjectParams": this was a string value in this scenario instead of the expected java object, and caused the exception. To resolve this, a debugger has been added which will check if the property is a java object or not. If it is not, the system will skip the processing and then display an error message with a stack trace.