INC-222126 · Issue 721903
Improvement for mobile display error related to harness timing
Resolved in Pega Version 8.6.5
After updating from 8.1 to 8.6, working very quickly on mobile to create a case and refresh it resulted in a "Display error" screen that included the message "Failed to find instance @baseclase.pyCreate of type Rule-HTML-Harness". This was caused by the system not being initialized with the needed content and some target parameters therefore being evaluated as null. A preliminary fix for closeDocCallback when WebView is not loaded has been added which has significantly reduced the frequency of this issue. Additional work will be done towards a complete resolution in a future release.
INC-145535 · Issue 600787
Corrected layout group overlapping content
Resolved in Pega Version 8.4.4
When an editable Table with Master Detail Edit has a section that contains a Layout group (Tab) inside the Master Detail Flow Action, if there are more layout group headings than that can be contained in the screen, a left and right arrow are displayed to toggle between headings in the layout group heading bar. However, timing issues sometimes caused the contents of the layout group to overlap on top of the content below the layout group and the screen was freezing with a loading icon. This was traced to console errors, and has been resolved by adding an 'undefined' check to prevent those errors.
SR-D71041 · Issue 537897
Default compiler pool size increased
Resolved in Pega Version 8.4.1
An issue was seen where the nodes were continuously terminating and Stream service was not started. Error messages indicated a "WARN - Long running request detected for requestor", and that tasks were waiting for the generic object pool. Analysis showed that it was possible for a deadlock to form during the startup of the system or during the first few rule executions and compilations when there were more than five rules trying to compile. Once the variable LibraryMetadata.TypeEnvironment.resolver (ClassLoader) is initialized, the problem would resolve. To prevent the deadlock, the default compiler pool size has been increased from 5 to 10.
SR-D73237 · Issue 539127
Pagination updated to resolve repeating Pulse notes
Resolved in Pega Version 8.4.1
After adding a case and entering 15 Pulse notes, scrolling down resulted in the notes being duplicated. Investigation traced this to entering more than 10 posts in a single interaction on a previously empty case when "Progressive pagination" was enabled for the repeating dynamic layout. On Private Edit, if the pagination was changed to "NONE" then the issue was resolved. Pagination depends on the pzPagingStartDateTime property, which is set on D_pzFeedParams, but since there were no results in this scenario this property was not being set. To resolve this, an update has been made so that pzPagingStartDateTime will be set if it is empty.
SR-D77557 · Issue 544684
Support added for custom portal with temporary work object
Resolved in Pega Version 8.4.1
After creating a screen flow with temporary work object in a custom portal, entering some data and clicking caused the screen to be blank after browser refresh. The same process from Designer Studio or the Case Manager portal worked as expected. Investigation showed that SPA applications with displayonpage actions was sending empty parameters to render the harness due to the 'doUiAction' activity clearing additional pages for single frame portals. To resolve this, the 'when' rule in step14 has been updated to support a custom portal and temporary work object.
INC-173436 · Issue 648821
Performance improvement for Application Save: Node Level Data Pages
Resolved in Pega Version 8.7
As part of new functionality introduced in 8.3, data types defined in the application record will be turned into data objects on Application save. As part of this process node level pages are invalidated and reloaded and there is an explicit commit that marks the Application record as dirty and sends any calls for the application record to the database for fresh records. In a multi-node environment, the number of queries to get the application record being saved became exponentially higher and performance impacts were seen. This has been resolved by updating the system to skip eager loading of the data page definition when an access rule or application definition is saved.
INC-192979 · Issue 678361
Performance improvement for Application Save: Node Level Data Pages
Resolved in Pega Version 8.7
As part of new functionality introduced in 8.3, data types defined in the application record will be turned into data objects on Application save. As part of this process node level pages are invalidated and reloaded and there is an explicit commit that marks the Application record as dirty and sends any calls for the application record to the database for fresh records. In a multi-node environment, the number of queries to get the application record being saved became exponentially higher and performance impacts were seen. This has been resolved by updating the system to skip eager loading of the data page definition when an access rule or application definition is saved.
INC-210513 · Issue 710342
Added handling for clustered index on the pr4_rule table during migration
Resolved in Pega Version 8.6.5
When attempting to migrate the rules schema to RULES85 and temp data schema DATA85, the upgrade was becoming stuck in a loop while working to generate declarative indexes for Rule-HTML-Paragraph. Investigation showed the infinite looping happened only for classes mapped to the pr4_rule and with instance count of more than (num of threads * batch size). This was due to the presence of a clustered index on the pr4_rule table causing the resultset to return an infinite number of records in SQLServer, and has been resolved with an update to leverage the total record count to iterate the resultset instead of depending on the resultset.next().
INC-214451 · Issue 721970
Rest connector passes RequestAttachmentPage to child requestor
Resolved in Pega Version 8.6.5
While invoking the Rest Connect from a data page, the error "InboundMappingException: Exception occurred while mapping incoming response" was generated. Requests with "Content-type:multipart/form-data" require "pyRequestAttachmentPage" or "pyResponseAttachmentPage" to be populated with correct values. When Rest-Connector was executed in parallel, those pages were not copied to the child requestor and the rest call executed from the child requestor did not have correct header and body. To resolve this, MethodConnect.java has been updated to correctly pass pyRequestAttachmentPage to the child requestor.
INC-220174 · Issue 716384
Improved cleanup for data from joining nodes
Resolved in Pega Version 8.6.5
A Cassandra node that is down for longer than the grace period (default 10 days) can introduce zombie data that creates instability when it returns to the cluster. This can include VBD partition summary data that was deleted and can break loading rules and cause the service to fail to start up. To resolve this, additional logic has been implemented to detect zombie summary records, including summary records without field descriptors and summary records without dictionaries having already been provided, and to read dictionaries from the latest summary record in case there are preceding zombie records with dictionaries.