SR-D41207 · Issue 512087
Fallover stategy added to chat routing to keep event processor running
Resolved in Pega Version 8.2.5
Chats were becoming stuck in the queue and end users were not able to connect with the customer service representative. An excessive number of queued items were observed in a Queue Processor named "EventProcessor". This was traced to the setting "Browse from the offset" having been removed because of a retention policy. This resulted in "Browse from the end of the stream" being used instead even though browse should start from the earliest known offset. To resolve this, Stream Producer will be cached based on topic, and Stream consumer will fall over to an earliest strategy in case the requested offset isn't found so the event queue will be handled in a timely manner.
SR-D42662 · Issue 516870
Support added for auto restart of system paused nodes
Resolved in Pega Version 8.2.5
After the system paused a run, nodes had to be manually restarted by hand. Investigation showed that a node had fallen from the Hazelcast cluster due to an instability and that there was no support for an auto-restart under this condition. This has been resolved by adding a pulse task to resume runs stuck in system pause.
SR-D43912 · Issue 509737
Fallover stategy added to chat routing to keep event processor running
Resolved in Pega Version 8.2.5
Chats were becoming stuck in the queue and end users were not able to connect with the customer service representative. An excessive number of queued items were observed in a Queue Processor named "EventProcessor". This was traced to the setting "Browse from the offset" having been removed because of a retention policy. This resulted in "Browse from the end of the stream" being used instead even though browse should start from the earliest known offset. To resolve this, Stream Producer will be cached based on topic, and Stream consumer will fall over to an earliest strategy in case the requested offset isn't found so the event queue will be handled in a timely manner.
SR-D47618 · Issue 512602
Statistic rounding error in ADMSnapshot Agent with Oracle corrected
Resolved in Pega Version 8.2.5
While running the ADMSnapshot Agent, the exception "internal.mgmt.Executable) ERROR com.pega.decision.adm.client.ADMException: Failed to complete ADM Data Mart snapshot" was seen. This was traced to an issue with the rounding of performance statistics when using Oracle, and has been resolved.
SR-D47713 · Issue 511970
Corrected issue with strategy framework testing
Resolved in Pega Version 8.2.5
Issues were seen in creating a dataflow to test the strategy framework shipped with the Pega Marketing product. It was not possible to use a data transform to test this strategy because it is in the shipped PegaMKTEngine ruleset. Investigation showed the value of appliedToClass was retrieved from "pyRunOnDataFlowClassName" instead of from the running strategy, and this has been resolved.
SR-D51353 · Issue 516913
Unit testing validation relaxed for external input strategy
Resolved in Pega Version 8.2.5
When trying to test a strategy, the testing transform had to exist in the same ruleset/version as the strategy or it would not resolve. Investigation showed that because the artifacts were in a different ruleset and version build on top of the application that the testing strategy belongs to, validation failed because it was using the platform based ruleset validation. This was a missed use case, and has been resolved by relaxing the validation for external input strategy so it does not take into account the ruleset and version of it. This same change has been applied for referenced data transforms.
SR-D52723 · Issue 516091
Data join conditions representation updated to avoid overwrite
Resolved in Pega Version 8.2.5
After upgrade, a Data join component on the Strategies was not working as expected, especially the ones using the DateTime function. If the data join conditions were swapped, i.e the DateTime function was not the last criteria, the strategy outputs were correct.Investigation showed that the implementation used a map to represent pairs of left and right expressions which caused conditions rows with the same leftExpr to end up overwriting one another. This has been corrected by fixing the representation of conditions of a Data Join to a list of tuples which eliminates the possibility of one condition overwriting a previous one.
SR-D53223 · Issue 516917
Predictor handling updated for Versioning Adaptive Model
Resolved in Pega Version 8.2.5
When attempting to update an adaptive model in a branch after it had been versioned, errors were observed on Predictor Type data that had not changed from the previous version. This was traced to an issue in the Adaptive Model rule UI in both Prediction and Dev Studio where if a non-default predictor type is selected, it would show in the UI but not be saved to the database. No error was shown. This silently led to the unexpected and incorrect data being stored with the result that once data had accrued, the rule could not be saved/saved-as due to validation believing the predictor type of a predictor with data was changing. To resolve this, rules have been updated so that the system will no longer override the predictor type of a predictor being edited when it is solely the predictor type that is changing.
SR-D53225 · Issue 516317
Rule creation logic updated to include creation branch
Resolved in Pega Version 8.2.5
When trying to create a new adaptive model rule in Prediction Studio, the “Create” button was not activating. The adaptive model rule was being saved in a branch ruleset, and investigation indicated that the deactivated button could be traced to the lack of an open ruleset version available even though the intention was to create it on a branch. This has been resolved by modifying the rule creation logic to incorporate the branch for creation.
SR-D54602 · Issue 517308
Prconfigs added to support Cassandra Speculative Based Execution
Resolved in Pega Version 8.2.5
In order to achieve high availability for Cassandra, prconfigs have been added to support speculative execution. The available prconfigs will enable it, and set maximum number of executions and delay before the next execution is launched. The prconfigs are: dnode/cassandra_speculative_execution_policy dnode/cassandra_speculative_execution_policy/max_executions dnode/cassandra_speculative_execution_policy/delay