INC-201364 · Issue 690806
Prediction outcome response timing updated
Resolved in Pega Version 8.7
Predictions using a response timeout were not emitting a negative response ('NoResponse') when the specified waiting time expired. This was traced to the the outcome and response timeout values being overridden while triggering responses for multi stage predictions along with chained predictions. This has been resolved by modifying the flow to emit each outcome as it is received and by adding the dataflow trigger in the function so that it does not override the values in case of chained predictions.
INC-201366 · Issue 691508
Performance improvements for stale thread warnings
Resolved in Pega Version 8.7
Stale thread warnings were causing performance issues during dataflow run execution. Stale thread/slow component warnings are added as part of the dataflow execution when a processing thread takes more than 5 minutes to process a single dataflow record. The stacktrace of the dataflow thread is added as part of the warning for debugging purposes, but in some scenarios the stacktrace can become very large. This has been resolved by removing the stacktraces from the warning, improving the query logic, and adding the run ID to the exception method to assist if there is an error.
INC-210513 · Issue 710342
Added handling for clustered index on the pr4_rule table during migration
Resolved in Pega Version 8.6.5
When attempting to migrate the rules schema to RULES85 and temp data schema DATA85, the upgrade was becoming stuck in a loop while working to generate declarative indexes for Rule-HTML-Paragraph. Investigation showed the infinite looping happened only for classes mapped to the pr4_rule and with instance count of more than (num of threads * batch size). This was due to the presence of a clustered index on the pr4_rule table causing the resultset to return an infinite number of records in SQLServer, and has been resolved with an update to leverage the total record count to iterate the resultset instead of depending on the resultset.next().
INC-215877 · Issue 715235
Handling added for Oracle "NUMERIC" type
Resolved in Pega Version 8.6.5
When a product rule was created in an environment using Oracle, importing the product into the cloud environment with database table schema changes resulted in errors. This was traced to a change in Oracle's JDBC driver which was reporting Number as a JDBC "NUMERIC" type instead of the previous "DECIMAL". Pega uses the NUMBER data type and expected a type=DECIMAL for an Oracle number, causing the errors. This has been resolved by adding a check for flex numbers if column is NUMERIC.
INC-218457 · Issue 713988
Updated debug logging
Resolved in Pega Version 8.6.5
Debug logging within IndexReferenceSynchronizer and FastLoader has been updated. With this update, IndexReferenceSynchronizer debug logging will indicate what the action is for each instance, FastLoader will include information about the keys being loaded and statements being executed, and duplicate logging has been removed from BatchSQLExecutors.
INC-202111 · Issue 710105
Logging extended for PRPCPropertyInfoProvider
Resolved in Pega Version 8.6.5
In order to assist with diagnosing issues with Kafka and JSON, additional logging has been added for PRPCPropertyInfoProvider.
INC-208976 · Issue 719166
Enhanced SSA metrics made available
Resolved in Pega Version 8.6.5
In order to better diagnose delays related to the time when a Campaign is scheduled to start and the time when the Dataflow actually starts to run, an update has been made which will generate detailed metrics to cover some of the strategy execution key performance intensive areas. Additional lower level internal metrics related to SSA engine execution have also been made available by way of a DSS to collect more runtime insight for diagnosis. To enable the collection of these Level 2 SSA internal metrics, set the dataflow/shape/strategy/detailed_metrics/level2 DSS in the Pega-DecisionEngine rule set to 'true'. A comprehensive set of enhanced metrics will be available in Pega 8.8.
INC-213217 · Issue 714194
Updated context handling for executing data transforms in dataflows
Resolved in Pega Version 8.6.5
When performing a sort operation in a data transform on a page list and invoking the Data transform through a Data flow, a java.lang.UnsupportedOperationException was generated on the sort step even though the data was correct. Investigation showed that the dataflows were using a different execution context than the context used for regular activity execution. An update has been made to ensure the correct context is being used while executing data transforms in dataflows.
INC-215601 · Issue 721524
Explicit Kerberos renewal added for HDFS
Resolved in Pega Version 8.6.5
When using WebSphere/IBM with Hadoop connectivity, the Kerberos credentials were expiring after 7 days and causing connectivity failures. Investigation showed the Apache Hadoop HDFS Client was not renewing the ticket even when there were operation calls every few hours. To resolve this, an enhancement has been added to the Pega HDFS client which will explicitly tell Hadoop authentication layer to check for Kerberos ticket renewal instead of relying on Hadoop built-in logic.
INC-217290 · Issue 721376
Added support for creating predictive models in Production
Resolved in Pega Version 8.6.5
While creating a new predictive model rule in Prediction studio, the case was going into broken process after selecting the template with the error message "Error loading D_ProjectList , Reason : No databases defined in properties file:/databases.properties". This was an unexpected use case for creating models in Production level, and has been resolved by updating the flows to turn off the draft mode in this scenario.