INC-169125 · Issue 642400
Nodes resume correctly after DDS restart
Resolved in Pega Version 8.5.4
A corner case issue in VBD's code for handling a DDS session was preventing the nodes from recovering correctly after a system shutdown. As part of the process for an event which fires if all DDS nodes are taken down or as part of a switch from embedded to external Cassandra, VBD's cache is invalidated and then re-initialized once new VBD API calls are received or on the VBD service pulse. In this case, the invalidation of the cache did not complete due to logic in the VBD code that can lead to executing a Cassandra query that will not work in the case of all DDS nodes being down. This has been resolved by modifying the handling of a session change event to eliminate inadvertent Cassandra queries so the invalidation can complete correctly and continue the re-initialization process.
INC-169544 · Issue 649539
Enhancement for MaxEnt modeling data
Resolved in Pega Version 8.5.4
An enhancement has been added to create output for the model coefficients, the term frequency, and the inverse term frequency for use in maximum entropy modeling. For MRM processes, every Maximum Entropy (Maxent) based topic model will contain two additional stats resources. These resources can be used to validate and replicate running of topic model outside of Pega. The resources are: 1) Term Frequency file – A CSV file with all words used for training and their cumulative frequency across training set. File name format – TRAINING_DATA_TERM_FREQUENCY_< RandomNumber >.csv olumns – Word, Count 2) Coefficient file – A CSV file with all features (words, taxonomy matches and category matches) and model learnt weights for each topic across training set. File name format – MAXENT_COEFFICIENT_VALUE.csv Columns – Feature, < TopicName1 >, < TopicName2 > ,…, < TopicNameK >
INC-170149 · Issue 645724
pzTenantID removed from Revision management classes
Resolved in Pega Version 8.5.4
After upgrade, issues were seen with case types in the case explorer. This was caused by the Revision management work classes created in the 7.1.x version having pzTenantId property in the rule XML when it was not defined anywhere in the 8.x versions, and has been resolved by removing the pzTenantId property from the Revision management classes.
INC-171221 · Issue 645988
Queue Processors made more robust
Resolved in Pega Version 8.5.4
After upgrade, multiple queue processors were not running as expected. Attempting to restart them generated an error. Investigation showed that the real time data flow runs were not picking up or accepting assignments because the local node was under the impression it was still processing data. In this case, the need to synchronize the state of multiple threads caused the queue processors to become stuck in an initializing state due to a race condition that caused the data flow engine to think this run still had threads running when all threads were already stopped. To resolve this, the callback handling has been simplified and made more robust. In addition, in some cases the data flow leader node would believe the service nodes did not accept assignments even when they did. This occurred if many runs and nodes were involved, and was traced to an implicit limit on the NativeSQL query used to read the data to see which assignments were accepted. To resolve this, the key-value store in the Service Registry has been modified to allow a query of more than 500 entries at once.
INC-174933 · Issue 651827
Special characters escaped for use in "is in List" lookups
Resolved in Pega Version 8.5.4
After creating a specific criterion on any proposition using a string property, the "Is In List" operator, and a customer list with one value containing a "$", clicking save or check in resulted in the exception error "Problem invoking function: pega_decisionengine_propositionfilterfua.pzPropositionFilterMethodBody--(PublicAPI,ClipboardPage) java.lang.IllegalArgumentException: Illegal group reference at java.util.regex.Matcher.appendReplacement(Matcher.java:857) ". This has been resolved by escaping regular expression control characters in string replacement, which will allow the use of characters such as the $ sign for "is in List" lookups.
INC-155640 · Issue 622978
Mobile logging updated for data page required parameters
Resolved in Pega Version 8.5.4
After upgrade, the number of warnings increased substantially in the mobile app log file for D_Pages, specifying "Required parameter X for data page X cannot be blank." This was traced to the forced logging related to missing required parameters for Parameterized DataPages during DeltaSyncs. In order to increase the value of the logging, the process has been moved from being called before packaging the Data Page to being printed later in packaging code and set to warn only about any unsupported data page configuration with required parameters.
INC-157217 · Issue 631970
Field Service mobile refresh timing updated
Resolved in Pega Version 8.5.4
A configuration in the Field Service mobile app used to select and map data from a modal section to a wrapper section used "pega.fsm.mobileutil.reloadSection" to refresh the wrapper section and make the data visible after the mapping. If the refresh was performed after the initial login, the refresh was done on only a portion of the screen and resulted in incorrect data being shown to the user. However, continuing to fill in the section and then saving and reopening the task displayed the correct results. The issue was reproducible only on the first attempt after clearing cache/date: subsequent uses refreshed properly. This was traced to the timing of the configured actions, which caused the refreshSection action to be triggered before the runDataTransform action execution was completed. This has been resolved by adding code that will pause the action queue until the runDataTransform action completed.
INC-157532 · Issue 631715
Corrected runtime name length check for custom fields to resolve logged error
Resolved in Pega Version 8.5.4
The error "Notification_MobilePush.Action ERROR - Can't parse JSON string to map" was being frequently logged. Investigation showed that in the Step8 activity in pySendNofication from Pega-Notification-MobilePush class, setting @String.length(customFields)>0 where customFields was a local value caused the runtime length check on customFields to fail. To resolve this, the Step8 activity in pySendNofication from Pega-Notification-MobilePush class has been modified from using @String.length(customFields)>0 to use @String.length(Local.customFields)>0.
INC-160275 · Issue 628104
Unchecked Include descendant classes in pyFeedUserDetails report definition
Resolved in Pega Version 8.5.4
After upgrade from Pega 7.4. to Pega 8.4, the use of a custom class 'XX-Data-OperatorLoginDetails' which pattern-inherits from Data-Admin-Operator-ID was causing the error "Union not applied because properties [pyImageFileName, pyEmailAddress, pyUseLocale, pyDefaultTimeZone] are not optimized in Data-OperatorLoginDetails”. This happened when the case manager portal was launched and the report definition pyFeedUserDetails (introduced in newer releases) was running by default, and was due to the presence of a few unoptimized properties when the report definition had "Report on Descendant classes" - include all descendant classes, checked by default. To resolve this, the checkbox to Include descendant classes in pyFeedUserDetails is now set as unchecked by default.
INC-160295 · Issue 635009
Null check added for pzinskey in CSLoadSelectedArticle
Resolved in Pega Version 8.5.4
In step 5 of CSLoadSelectedArticle, there is a call to pzGetAssociatedTags. Step 1 of pzGetAssociatedTags is an Obj-Browse with MaxRecords set to 100000000, and there is logic to retrieve records where pxLinkedRefFrom = Primary.pzInsKey. If Primary.pzInsKey is null, then the Obj-Browse will fetch all of the records. In order to prevent an unnecessary flood of results, a when condition has been added in the CSLoadSelectedArticle rule to check pzInskey so that when the context is empty the system will not call the pzGetAssociatedTags and return the entire record set.