SR-D90779 · Issue 556916
Resolved error when using IHSummary as a predictor
Resolved in Pega Version 8.4.2
After configuring the adaptive model and implementing delayed learning with IHSummary as a predictor, the exception "dataflow.StageException" appeared when the strategy was executed as part of the dataflow run. This has been resolved by implementing a cache expiry of 5 minutes.
SR-D96836 · Issue 555750
Refinements made to MarkerNode memory use
Resolved in Pega Version 8.4.2
Significant memory usage can be observed when data join in strategies are missing the join conditions. E.g., when the primary source in the strategy can have up to 300 or even more propositions, the join without the join condition would perform a cartesian product with possibly up to 400 or even more records returned. This may cause performance degradation. To guard against this, an update has been made that seeks to prevent repetitive markers being accumulated under a MarkerNode while trying not to rely on any implementation of equality and hashCode for individual marker implementations.
INC-195387 · Issue 681673
HandleResponses updated for use with optimized campaign
Resolved in Pega Version 8.7
After updating from Pega 8.4, responses were not processed in the pxHandleResponses Data flow if the "pyCampaignOptimization" flag was set to true. This was traced to a missed use case for an optimized campaign, and has been resolved by modifying the condition in HandleResponses.
INC-131260 · Issue 571786
Handling added for runs using Completed state
Resolved in Pega Version 8.4.2
After upgrade, creating a data flow rule and the batch Data flow run using the Dataflow-Execute method in the activity resulted in the exception "Could not start run DataFlowRunConfig" when executing. This was a missed use case in the new architecture of data flow engine introduced in 8.4, causing DataFlow-Execute to not work properly for existing runs in COMPLETED state. This has been resolved with the addition of a branch of execution in DataFlow-Execute.Start to correctly handle completed runs.
INC-197530 · Issue 686027
Value Finder updated for use with external Cassandra nodes
Resolved in Pega Version 8.7
Attempting to use the Value Finder feature resulted in the error "Running Simulation is not possible because the required services are not available. Contact your System Administrator to enable the data flow and decisioning data store services." Analysis traced this to a check which identifies whether there is more than one internal node available for CDH/ DSS node. Since there were only external nodes available in this scenario and no internal nodes, the method returned false and returned the error when the CDH / VF page was launched. To resolve this, the check has been modified to allow for external Cassandra.
INC-174933 · Issue 651829
Special characters escaped for use in "is in List" lookups
Resolved in Pega Version 8.7
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-176757 · Issue 657785
Interaction History properly saved when running strategy on a different data flow
Resolved in Pega Version 8.7
Customized Interaction History properties that had been added to pyInteractionHistoryConfiguration and pyDefaultWorkingSet and saved into the PR_DATA_IH_FACT table were not being saved properly after upgrading from 7.3 to 8.3. This was a missed use case and has been resolved.
SR-D87709 · Issue 552400
Default context check added for saving adaptive model with locked rulesets
Resolved in Pega Version 8.4.2
When updating an adaptive model rule in Prediction Studio, the error message "No unlocked Rulesets/Versions found that are valid for this record. Unlock at least one Ruleset/Version that can contain records of this type." appeared when clicking Save. This occurred when a branch was used in the default context of the Prediction Studio settings. Although there was a workaround to use Dev Studio to Save As the adaptive model rule to the required branch, this has been resolved by adding a check for default context and then saving the model there if it is mentioned.
INC-191356 · Issue 679163
External Input setting available on Strategy Batch Performance Test
Resolved in Pega Version 8.7
It was not possible to specify the External Input as part of a strategy when using a Batch Performance test. This has been resolved by updating the pzDisplayTestStrategyContext When condition to "true" the so external input selector is properly displayed.
INC-128898 · Issue 564692
Updated precondition checks for Tumbling Time data in event strategies
Resolved in Pega Version 8.4.2
Tumbling Time data keys in event strategies were not being properly executed when certain window configurations were used. This was has been resolved by turning off the optimalization of Cassandra reads for small windows when window size is not known upfront and set dynamically (set size by property).