INC-169544 · Issue 649538
Enhancement for MaxEnt modeling data
Resolved in Pega Version 8.6.1
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-170721 · Issue 658962
Stricter criteria set for reusing an SSAExecutionContext
Resolved in Pega Version 8.6.1
After a Strategy was configured with an existing Proposition Filter and the Explain Results box was unchecked, executing the strategy resulted in the error "Stack is empty, cannot pop any more frames". Investigation showed that the SSAExecutionContext object was reused across the two criteria evaluation in Proposition Filter rule: this works well as long as the input is the same across the two evaluations. However, the SSAExecutionContext object also stashed a reference to a PublicAPI object which became stale in the second evaluation and caused the empty stack issue for the given scenario. This has been resolved by providing stricter criteria in deciding when an SSAExecutionContext can be reused or not in the case of Proposition Filter rule.
INC-171594 · Issue 656184
Spell check correctly applied to email body
Resolved in Pega Version 8.6.1
Spell check was not being applied to email body for text analysis in Email Channel. This has been resolved to work irrespective of case.
INC-174550 · Issue 658395
Alternative pyLabel source for Auto-generated Proposition Filter added as fall back
Resolved in Pega Version 8.6.1
After using save-as to move an offer/action rule containing eligibility criteria into a new ruleset /branch, the criteria disappeared. Proposition Filter has an explicit dependency on relevant records, and in this scenario investigation revealed all of the relevant records had been previously deliberately deleted. Using save-as on auto-generated CDH rules like actions is also not a best practice. To better handle unexpected actions like these and avoid the hard dependency on Relevant Records, when creating the Proposition Filter via the programatic API the system will fall back to reading the label from the sourcePage if is not possible to get the label from Relevant Record.
INC-174933 · Issue 651828
Special characters escaped for use in "is in List" lookups
Resolved in Pega Version 8.6.1
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-175207 · Issue 655555
Added handling for DSM Services stuck in leaving status after database outage
Resolved in Pega Version 8.6.1
During a database outage, the heartbeat would fail and DSM services would eventually try to enter safe mode and stop. As the first step they would try to change the state to LEAVING, but because the database was down saving the LEAVING state failed and the exception was not handled correctly. This resulted in the rest of the stop operation logic not being executed and the service being stuck in LEAVING. To resolve this, an update h as been made to ensure the service goes to LEAVING_FAILED if anything fails during the stop operation including when setting state to LEAVING_FAILED. The state LEAVING_FAILED will get flushed to the database eventually when it comes back up. This will allow the aggregation service to start from the LEAVING_FAILED state and recover by itself after a database outage.
INC-175707 · Issue 655348
Multi-level strategy gives correct rules during Batch run
Resolved in Pega Version 8.6.1
When using a nested page structure with multi-level strategies that loop through each page and process the customer, a customer with two linked customers A and B had the results of A overridden by B during Batch Processing while single case canvas testing showed the correct results. This was caused by the DSM clipboard page method of carrying the parent page info not supporting the re-use of pages, and has been resolved by adding an enhancement that will sanitize the strategy stage processor to ensure the correct page reference is used.
SR-D42451 · Issue 518067
ExecuteRDB call updated to use NativeSQL for blob
Resolved in Pega Version 8.2.6
After creating a test activity to clear data set records that used the DataSet-Execute method and passed the data set name and truncate operation, only 51 records were deleted in a single run when the data set had more than 51 records. Investigation showed that for blob tables, the database truncate operation was using executeRDB with an empty results page, i.e. it didn't specify pyMaxRecords, which on some databases might have limited the number affected records. To resolve this, the executeRDB call in the database truncate operation has been modified to use NativeSQL for blob tables.
SR-D45608 · Issue 519901
Correct service instance name passed for data flow in DSMStatus
Resolved in Pega Version 8.2.6
When using the Connect-HTTP service "DSMStatus" to provide the node and status information as seen on the various tabs of the Designer Studio > Decisioning > Infrastructure > Services landing page, using DataFlow as the service parameter for the HTTP service method resulted in an empty response when the expectation was to get the information regarding the cluster details of Dataflow node type. This was traced to the service instance name not being parsed correctly when used for Data Flow services, and has been resolved by ensuring the correct service instance name is passed for this use.
SR-D54218 · Issue 518600
Deadlock in static Initialization of IntList resolved
Resolved in Pega Version 8.2.6
JVM Deadlock was seen related to the static Initialization of a subclass field in class com.pega.decision.strategy.ssa.runtime.collections.api.IntList . Thread dumps showed threads in RUNNABLE State that were parked to wait for class initialization, and this was traced to a missed sonar alert which failed in multi-threading. To resolve this, the system handling has been updated to prevent potential deadlock.