INC-206799 · Issue 701439
Performance improvements for stale thread warnings
Resolved in Pega Version 8.5.6
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-207357 · Issue 703350
Decision Management book updated for additional NLP troubleshooting
Resolved in Pega Version 8.5.6
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-212656 · Issue 706896
Decision funnel simulation improvements
Resolved in Pega Version 8.5.6
Memory fixes and performance improvements have been added for funnel simulations.
INC-213189 · Issue 707346
Addressed performance issues for classless DSMClipboardPage
Resolved in Pega Version 8.5.6
The DSMClipboardPage implementation handles Page Group access as a classless page (i.e. pxObjClass = ""), creating potential performance issues in implementations where the page group is used with a very large number of distinct AccountIDs in a short period. This has been resolved by updating the system to not cache keys for page group classless page.
INC-213549 · Issue 710160
Resolved error for custom relative dates
Resolved in Pega Version 8.5.6
An error was seen when parsing the [Date Property] [is before/after] [Last/Next x days] while using a custom amount of number of days in Customer Decision Hub (CDH). This was due to the system not supporting the [Last/Next x days] feature for SSA, but only detecting this during parsing for the prefixed values for Proposition Filters and not custom values. As the parser did not realize the construct referring to the relative date was not supported, it created an SSA that caused an exception during execution. This has been resolved.
INC-145293 · Issue 610935
Additional diagnostic logging added for ElasticSearch startup issues
Resolved in Pega Version 8.5.6
The PyIndexerState was stuck in Starting status during node initialization. This issue could occur if the filesystem became hung due to network level issue while scanning entries from /etc/mtab, resulting in a lock which was not released correctly. In order to better determine which node entry in a cluster may be responsible for the hang, an update has been made which will use a temporary virtual environment to repeat the part of the initialization phase responsible and generate additional logs for debugging. To activate this, the PegaSearch.Diagnostics logger must be set in DEBUG mode. This duplicated virtual initialization will not interrupt the normal initialization.
INC-163791 · Issue 666195
Simplified default reference time calculations
Resolved in Pega Version 8.5.6
After a job scheduler was configured to run at Start time = 21:00:00 for Time zone = Europe/London, the scheduler determined 20:00:00 as the next start time. This was due to the calculation for the next start time using the time zone offset calculation pattern for the date and time stored in System-Runtime-Context.pxCreateDateTime, which had difficulty with changes to the time zone definition implemented in the time between the given date and today (meaning the current time) such as daylight savings time. To resolve this, the default reference time from System Runtime Context will be 'now' instead of Date(0).
INC-168253 · Issue 660882
Documentation updated for using Connect MQ with clustered queues
Resolved in Pega Version 8.5.6
After update to Pega Platform v8.6, an issue was seen with Connect MQ rules that used an alias queue. The support documentation has been revised to outline the necessary steps for updating an application to perform as expected. In the Pega-IntegrationEngine ruleset, create the following dynamic system settings and their default values: "mq/pmo" = 0 "mq/gmo" = 0 "mq/oo_request" = 1040 "mq/oo_response" = 16 For more information, dynamic system setting support articles are available.
INC-174625 · Issue 655241
Admin Studio will consider cluster protocol when returning listener status
Resolved in Pega Version 8.5.6
When using a few nodes in standalone mode for BIX extract combined with server nodes using Hazelcast, opening the admin studio pages with service discovery caused an error to be thrown. This was traced to the system writing an entry to pr_sys_statusnodes table as an embedded node whenever a BIX extract was triggered, causing those standalone nodes to be incorrectly considered by the listener landing page. This has been resolved by configuring the system to either return the local member when the cluster protocol is standalone or to return all Hazelcast members if the cluster protocol is Hazelcast.
INC-177512 · Issue 657014
Hazelcast packages expanded for Java9+ with kubernetes
Resolved in Pega Version 8.5.6
Hazelcast warnings were seen in cluster logs when Hazelcast was run in embedded mode or c/s mode on a java modular environment i.e. java 9+ which noted that performance and functional impact issues may result if certain internal modules of java are not given reflection access. This update provides the necessary access to some additional java internal modules/packages per the Hazelcast recommendation.