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NOTE: Enter just the Case ID number (SR or INC) in order to find the associated Support Request.

INC-136969 · Issue 585546

Section and Paragraph rule types added to Revision Manager

Resolved in Pega Version 8.5.1

An enhancement has been made to add support for section and paragraph rule types in revision management. With this change, the sections and paragraph rule types can be added to overlay and can be added to change requests and modified.

INC-138103 · Issue 585639

Enhancement added for node heartbeat recovery process

Resolved in Pega Version 8.5.1

Nodes were not showing up in the admin portal even though they were up and running and could be seen in the pr_sys_statusnodes table. The exception "An exception was encountered while invoking the cluster membership listener callback" was seen. All nodes became visible again after multiple restarts. The root cause was traced back to a temporary database connectivity problem. The database itself was fine according to database monitoring reports, but a network problem, a slow database query, or another issue prevented Pega from establishing a connection for more than a minute. An enhancement has been made to resolve this: if a node becomes unhealthy due to the service registry missing due to a failed heartbeat, the heartbeat will try to recover after 60 seconds and keep trying every 30 seconds until it succeeds.

INC-136128 · Issue 580227

Data Transform added to support Kafka custom serialization/deserialization

Resolved in Pega Version 8.5.1

Previously in a Kafka DataSet it was possible to either serialize or deserialize messages as mapped objects to JSON, or to implement some other mechanism to achieve the expected results. An enhancement has now been added to the Pega platform functionality: DataTransformSerde will be available to be used as custom serialization/deserialization mechanism in Kafka DataSet.

INC-126801 · Issue 575960

Improved cleanup for adm_response_meta_info

Resolved in Pega Version 8.5.1

The adm_commitlog.adm_response_meta_info column family was growing, leading to gradual increase in CPU utilization on the ADM nodes over time. Investigation showed that the compaction on the adm_response_meta_info table was not being triggered by the ADM service, and the compaction did not remove rows that belonged to models that had been deleted. To resolve this, compaction of the adm_response_meta_info table has been moved from the ADM client nodes to the ADM service nodes, which will correctly trigger the compaction on a predefined schedule. The compaction logic has also been refactored to remove rows that belong to models that have been deleted.

INC-133728 · Issue 583124

Performance improvements for very heavy use of strategy decision logic

Resolved in Pega Version 8.5.1

Updates have been made to improve memory performance for scenarios where a single request primary page had tens of thousands of pages under an embedded pagelist property and the decision logic involves a strategy running on all the pages in that page list. These include modifications to GetFramesSSA to create reusable frames under heavy load conditions that contain the information about all the primary pages that it has to iterate; if CallSsaProgram receives one of these special frames, it will use it invoke the program by repurposing it with a new primary page at each iteration.

INC-138037 · Issue 586594

Strategy handling updated for very large systems using IH summary

Resolved in Pega Version 8.5.1

When a Strategy in a Real-time dataflow used IH Summary on a system with more than 5000 groups for one eventKey, the message "Error retrieving aggregates from Cassandra KVS" intermittently appeared. Investigation showed that if the number of result rows was greater than the FETCH_SIZE (set to 5000), it meant another read to Cassandra was required and an exception was generated. To resolve this, updates have been made so that instead of returning maps, the system will return iterators and change them to map on the calling thread.

SR-D85563 · Issue 551684

Dependencies of module.xml documentation update

Resolved in Pega Version 8.5.1

Documentation has been updated to include specifics about adding a dependency in Microsoft JDBC Driver 6.0., under dependencies of module.xml.

SR-D88570 · Issue 550104

Cleanup script topic moved to Post-Upgrade steps in deployment documentation

Resolved in Pega Version 8.5.1

The deployment guides have been updated to indicate that the cleanup script should only be run after the upgrade has been completed, as well as clarifying that this is only required if the clean up scripts have never been run previously.

INC-143121 · Issue 610735

Timeout for loading predictors made configurable

Resolved in Pega Version 8.5.3

When using an extremely large number of predictors, the Report definition pzADMPredictorsFilter was suffering timeouts due to the time for loading predictors from the database exceeding the time threshold allowed. This has been resolved by marking the rule as editable to allow custom setting of the threshold according to need.

INC-150395 · Issue 625070

Tokenizer updated to handle commas

Resolved in Pega Version 8.5.3

The Text Analyzer was not working as expected in cases where the number was combined with a comma (,) with it but was working when a space was used between the number and the comma. This was traced to the tokenizer not correctly processing and splitting the input text when there was a special character before or after the token. This has been resolved by updating the tokenizer logic.

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