SR-D66674 · Issue 538973
DSS added for fall back to legacy decision table format
Resolved in Pega Version 8.4.1
After upgrade and switch to IL, non-working decision tables created in one class had pyWorkPage mapped to another class. In the column, the properties were mentioned as "pyWorkPage.xxxxx", but at runtime when the non-working decision tables ran as standalone, the system did not ask for values to be entered to evaluate the result. Tracer showed the error as "Goal seek requires missing input property pyWorkPage.All_Offln_Trans_In on page pyWorkPage; details: (unknown)". Investigation showed that the Legacy assembly for the decision table used the lazy evaluation pattern to resolve the expression in the column header in the generated Java code. This resulted in the property for the column header only being read when it was used. However, for IL-based decision tables all properties are read immediately before any rows are evaluated, which requires the property already be present on the page. This missing property from the lazy assembly then resulted in the exception. To resolve this, Executable.generateOrCompileSource and Virtual tableassemblyHandler.useIL() have been modified to fall back to legacy decision table format if the DSS InternalLanguage/disableIlBasedDecisionTable is enabled.
SR-D70890 · Issue 542872
Enhanced diagnostic logging for automatic search re-index
Resolved in Pega Version 8.4.1
To better analyze an out of memory error, enhanced diagnostic logging has been enabled for the below classes to get more information regarding re-index triggered automatically after search index is complete.PegaSearch.SearchManager.SearchInitlizationUtils PegaSearch.SearchManager.BuildIndicesTask Rule_Obj_Activity.pzLPFTSManagerRunBuildIndex.Pega_Search_Manager.Action PegaSearch.Indexer.AbstractIndexer
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-D71145 · Issue 536370
PropertySet will iterate over changeList map copy to resolve CME
Resolved in Pega Version 8.4.1
An empty menu was seen intermittently when handling incoming email, and a ConcurrentModificationException error was logged. Investigation showed that a step scope changeList map used in the handleChaining method was sometimes modified by another process while the first one was iterating over it. To resolve this, PropertySet will receive copies of the change list map from clipboard pages instead of the original map.
SR-D74534 · Issue 538946
Decision table and tree obey allow missing properties checkbox
Resolved in Pega Version 8.4.1
Calling the decision table/tree inside another decision table/tree which has a missing property was throwing an error even though the "AllowMissingProperties" checkbox was enabled in the caller activity. Analysis showed that the setting for AllowMissingProperties did not carry into any subsequent DecisionTree/DecisionTable calls from the top DecisionTree/DecisionTable, and this has been resolved by modifying the decision table and decision tree obtain value functions to pass AllowMissingProperties.
SR-D84099 · Issue 547826
Atmosphere library updated
Resolved in Pega Version 8.4.1
Multiple setAttribute exceptions were logged related to the Atmosphere component, indicating "The request object has been recycled and is no longer associated with this facade." Investigation showed that since the request object was destroyed, an illegalstateexception was thrown. To resolve this, the Atmosphere library has been updated to version 2.4.5.7 which contains the fix for this error.
SR-D84122 · Issue 547968
Added min INT comparison for BrowseByKeys
Resolved in Pega Version 8.4.1
Running the dataset with the Browse option worked as expected, but running it using BrowseByKeys operation and giving a negative value caused results to not be populated. To resolve this, a minimum INT value comparison has been added.
SR-D84876 · Issue 547691
Performance improvement for Oracle 12c queries
Resolved in Pega Version 8.4.1
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 546892
Null check added to resolve addmapcasetomap error
Resolved in Pega Version 8.4.1
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-D85653 · Issue 548601
Repaired Tracer use with Google Chrome
Resolved in Pega Version 8.4.1
After running Tracer while using Google Chrome, closing it and trying to run another resulted in an error indicating "Cannot Launch multiple tracer sessions for a requestor". This was identified as a bug with Google Chrome Versions greater than 70 and was caused by Chrome deprecating the use of sync XHR on page dismissal, and has been resolved by modifying the system to use a beacon API instead.