INC-175207 · Issue 655556
Added handling for DSM Services stuck in leaving status after database outage
Resolved in Pega Version 8.4.5
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 655349
Multi-level strategy gives correct rules during Batch run
Resolved in Pega Version 8.4.5
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-D16934 · Issue 493702
External Cassandra nodes listed in DDS cluster
Resolved in Pega Version 8.3.1
Nodes of an external Cassandra cluster were not listed in the DDS cluster except for the first one in the host list, and when the “only” listed Cassandra node was restarted, the status on the DDS cluster LP did not become “NORMAL” afterwards. In addition, even though other C* nodes were up and running, the external Cassandra cluster was reported as unreachable. This was an unintended side effect of work done on the landing page to reflect the real state of the nodes after some were killed and restarted, and has been corrected by refining the equals() and hashCode() methods for DDS member info in order to better differentiate the external Cassandra nodes.
SR-D22686 · Issue 493516
IH summaries working with external Cassandra
Resolved in Pega Version 8.3.1
Summaries were not working for external Cassandra. This was an issue with the IH summary component using the aggregated dataset as a reference, and this fix contains several components to improve this function. An issue where the IH aggregates dataset does not materialize when DDS is external Cassandra has been resolved by modifying the code that checks the DDS availability. A filter that was used to match “” did not work when pre-aggregation is off : this was due to the IH Browse operation being done outside of a DF context, and has been fixed. The IH Summary shape not working properly in a strategy if it referenced an aggregate dataset with pxInteractionID as part of the group-by properties was traced to an issue with it generating a pxInteractionID value when executing the strategy, and has been resolved by excluding pxInteractionID from the group keys in the IH Summary shape.
SR-D24880 · Issue 494171
CEP bucket size increased to 1 minute
Resolved in Pega Version 8.3.1
Frequent DSM Data Flow Errors were observed in production nodes with very high event rates. This was traced to the default bucket size for CEP being 1 second for a 31 day window, which was not sufficient to handle high volume use which may create an event strategy window large enough to hit the Cassandra column size limit. In order to resolve this, the default bucket size has been increased from 1 second to 1 minute.
SR-D25184 · Issue 494689
Support added for referencing Page Group property inside of strategy
Resolved in Pega Version 8.3.1
Referencing a page property under Page Group property inside a strategy resulted in a runtime error of ClassCasting: "java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.pega.decision.strategy.ssa.runtime.ClipboardPage". The issue was traced to the SSA optimized code for the GetPage SSA assuming that the GetPage SSA would only have another page as a parent. In order to handle the above scenario where GetPage would have a GetPageCollection as a parent and return a List of ClipboardPages, a GetPage function has been applied over each entry in the results of the GetPageCollection SSA using a MapAction SSA. Some optimizations will be applied in cases where the GetPageCollection has only one entry, which will replace the MapAction with a simple GetPage action.
SR-D26010 · Issue 500163
Modified VBD insertion logic to improve handling
Resolved in Pega Version 8.3.1
An issue with not being able to launch an additional VDB node was traced to two processes inserting into VBD with different field signatures and triggering unnecessary object creation. This was amplified when adding a second node as the objects were serialized. To resolve this, the insertion logic has been modified to avoid creating new data container/field descriptors after a new field is included, as well as a measurement with smaller data type than previous container.
SR-D28038 · Issue 501755
External Cassandra nodes listed in DDS cluster
Resolved in Pega Version 8.3.1
Nodes of an external Cassandra cluster were not listed in the DDS cluster except for the first one in the host list, and when the “only” listed Cassandra node was restarted, the status on the DDS cluster LP did not become “NORMAL” afterwards. In addition, even though other C* nodes were up and running, the external Cassandra cluster was reported as unreachable. This was an unintended side effect of work done on the landing page to reflect the real state of the nodes after some were killed and restarted, and has been corrected by refining the equals() and hashCode() methods for DDS member info in order to better differentiate the external Cassandra nodes.
SR-D32719 · Issue 505260
Compliation error resolved for editing complex offers
Resolved in Pega Version 8.3.1
The following error was logged while trying to edit offers: "com.pega.pegarules.pub.generator.FirstUseAssemblerException: Failed to compile generated Java, com.pegarules.generated.html_section.ra_stream_pyeditelement." Research showed the code for the static initializer was exceeding the 65535 byte limit, causing the java compilation of the pyEditElement section to fail for a decision data rule. This was due to the pyEditElement section for a decision data rule being circumstanced: the assembler architecture of circumstanced section rules generated and added code for all the versions of a circumstanced section. Hence, if the section referenced a lot of properties and it existed in multiple ruleset(s)/ruleset versions, the java compilation for the section rule failed. To correct this, the integration of the pyEditElement section with decision data rules has been revised and enhanced, and a function and utility have been provided to call the function to clean up the old and redundant pyEditElement sections for a given decision data rule.
SR-D37163 · Issue 505476
Corrected Decision Data import filter behavior
Resolved in Pega Version 8.3.1
After upgrade, if a Decision data import referred another component to filter out the import, it did not work. This has been corrected.