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Resolved Issues

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Pega Platform Resolved Issues for 8.1 and newer are now available on the Support Center.

INC-179727 · Issue 704544

Modified batch requestor handling to ensure cleanup

Resolved in Pega Version 8.7.2

A large buildup of batch requestors was seen, and restarting the node did not clear it. Investigation showed that in the case of one class reading a DSS value, a Pega requestor was being created when it was unable to retrieve any Pega context, and this requestor was not cleaned up afterwards. To resolve this, an update has been made to the way the requestor and Pega context is being created along with ensuring it will be cleaned up properly after use.

INC-192826 · Issue 685795

PMML updated for nested 'if'

Resolved in Pega Version 8.7.2

Running a model on the openscoring API and the Pega PMML model gave different results. This has been resolved by updating the handling for nested 'if' in PMML.

INC-206109 · Issue 706237

Delayed Learning works correctly with Volume Constraints

Resolved in Pega Version 8.7.2

When running an outbound campaign using NBA Designers predictions and delayed learning in conjunction with volume constraints, the adaptive models ended up with incorrect feedback if the prediction had an Alternative label configured with a defined waiting window. This has been resolved with the addition of a new flag 'isVolumeConstraintEnabled' during dataflow creation which will check for volume constraint, and a filter in HandleResponses for that flag.

INC-207357 · Issue 703349

Decision Management book updated for additional NLP troubleshooting

Resolved in Pega Version 8.7.2

Troubleshooting articles have been added to the Decision Management book which address the most common issues encountered when working with the NLP capability of Pega Platform, including topic and entity detection and email parser. These tips can assist with issues such as a node running out of memory due to having a large number of custom Ruta scripts that use REGEX pattern matching.

INC-208709 · Issue 710809

Added handling for new requestor in previously authenticated Voice AI group

Resolved in Pega Version 8.7.2

When attempting to pilot the new Voice AI feature set provided recently in the Customer Service framework, the error "You lack access required to execute RULE-OBJ-ACTIVITY WORK-CHANNEL-INTERACTION-VOICEAI TRANSCRIPTDISPATCHER" was logged. The same was seen for the ConnectToAudioProcessor activity. Investigation showed this could happen when a new requestor that's not authenticated yet gets created with currentAccessGroup already equal to the desired access group, causing the authentication step to be skipped. This has been resolved with an update to address the dataflow thread authentication edge case where the default requestor access group is equal to the dataflow run's access group.

INC-210639 · Issue 705346

Query limit removed from Scenario Planner

Resolved in Pega Version 8.7.2

Scenario Planner was not correctly finding or opening some Audience Simulations. Investigation showed that when there are 500+ completed data flows, the system was failing to load next 500 records from pegadata.pr_data_decision_ddf_runtime. This has been resolved by removing the query limits, and additional debug logging has been added.

INC-211251 · Issue 706541

Handling added for Model level Data type empty values

Resolved in Pega Version 8.7.2

After update, the Email Intelligent Virtual Assistant™ (IVA) was not able find the proper response for the real-time incoming emails but was able to find the topic and response when running it from Dev Studio and Prediction Studio. This was due to an edge case where the model datatype page list property was present on the text analyzer rule and a page was present in it, but the property pyName which actually holds the data type (body, attachment, all) was not present in the page. This has been resolved by updating the system to add 'all' as the datatype if the pyName is blank (null or empty).

INC-211349 · Issue 709606

Service API called directly in CDH simulation

Resolved in Pega Version 8.7.2

Running a simulation from the Customer Decision Hub with strategy and dataflow that used customer data resulted in with either a failed run or blank explain detail reports. Investigation showed synchronization was not triggered due to the pxVBDAvailable call returning false, and this has been resolved by directly calling the service API without additional checks.

INC-212704 · Issue 707116

Explicit lock release added for Cassandra threads

Resolved in Pega Version 8.7.2

Customer Decision Hub was not responding for realtime request REST service calls, and thread dumps during start up were showing all HTTP request threads were stuck in CassandraSessionCache.getSession. If an error is thrown while invalidating an old Cassandra session, the system may fail to unlock the write lock. This results in subsequent threads being blocked on the session cache's ReadWriteLock when they attempt to retrieve the session from the session cache. To resolve this, an update has been made to ensure that invalidate session is wrapped in a finally block that releases the write lock and log any thrown errors.

INC-213176 · Issue 709975

Data flow stability improvements

Resolved in Pega Version 8.7.2

All nodes were showing as active and running in the cluster, including background, stream, web nodes, but the queue processor would not start. Log entries indicated "IllegalStateException: Invalid run transition found [PENDING_NODES->COMPLETED] on run [DF_OutboundPreProcessing_SMS] by [EventDescription{originator=CheckNodeAvailabilityTask, reason=Restoring previous state." Due to this, all dataflows were moved to queued state. As soon as the corrupted dataflow was deleted the other dataflows were resumed. To resolve this, data flow stability improvements have been added along with better handling of runs in Queued state.

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