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INC-126129 · Issue 569666

PropertyToColumnMap made more robust

Resolved in Pega Version 8.1.9

The DF_ProcessEmails dataflow was intermittently failing with a StageException error. This was traced to schema changes being propagated asynchronously by system pulse, which seem to have caused PropertyToColumnMap to cache stale schema. To resolve this, if the property mapping is not found the first time, the system will make a second attempt to get the mapping. Additional logging has also been added for better diagnostics.

INC-128385 · Issue 564521

Behavior made consistent between SSA and legacy engines

Resolved in Pega Version 8.1.9

There was a behavioral disparity between the legacy execution engine and the SSA engine where the latter was not creating a new page when the index was one above the size of the page list. This has now been corrected in order to make the SSA behavior fully backward compatible with the legacy engine, i.e. a new blank page will be added to the list if the index is one above the size of the list.

INC-129222 · Issue 568530

Handling improvements for commit logs

Resolved in Pega Version 8.1.9

The ADM commit log logs the number of unconsumed messages that are going to expire. In certain circumstances, it can include unconsumed messages that are not going to expire in the count. Because they are not expired and removed, the environment was running out of disk space due to the ADM commitlogs table growing larger than expected and performance issues were seen. To resolve this, a new adm_commitlog.adm_responses_commit_log_date_tiered table has been created, with a default_time_to_live of 24 hours. DateTieredCompactionStrategy has been set with max_window_size_seconds as 24hrs and tombstone_compaction_interval as 24hrs.

INC-132976 · Issue 580685

Performance improvements for Test Strategy data flow

Resolved in Pega Version 8.1.9

In the Test Strategy panel under Single case -> "Settings", selecting the "Data flow" option and choosing CustomerData dataflow was taking an excessive amount of time to run on a system with an extremely large database. To improve performance, two areas have been addressed: 1) the default behavior for record key suggestions in the test panel has been modified to collect only the ID as the additional data is not necessary at that time; 2) a DSS has been added that will opt out of reading and collecting the customer IDs in order to minimize data stored on the clipboard.

INC-138037 · Issue 586593

Strategy handling updated for very large systems using IH summary

Resolved in Pega Version 8.1.9

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-D92734 · Issue 553412

Simulation can take Data flow type as destination

Resolved in Pega Version 8.1.9

Support has been added for Data flow functionality as simulation target and data transform in simulation input.

INC-138501 · Issue 592286

Added VBD support for CSRF token setting

Resolved in Pega Version 8.4.4

Attempting to open any VBD reports in the marketing portal for a simulation test caused the user to be logged out. Investigation showed that this happened when CSRF token check was enabled in System > Settings > Cross-Site Request Forgery, and was caused by the planner not passing the CSRF tokens in its Ajax calls. To resolve this, handling for the CSRF tokens has been added to the necessary Ajax calls.

INC-139574 · Issue 606143

Exception handling added for dataflow rule assembly

Resolved in Pega Version 8.4.4

A Blue Screen error was coming up in the Customer Service Web Chat Application after an agent accepted the incoming chat request and sent messages in the chatbox in the Interaction portal. This has been resolved by adding handling for exceptions that occur when inlining templates during dataflow rule assembly, when inlining templates, we weren't handling exceptions properly.

INC-140821 · Issue 600750

Resolved Intermittent Access Group Issue for GetBundleEventDecisionDetails

Resolved in Pega Version 8.4.4

When using a REST service that calls the GetBundleEventDecisionDetails activity and dataflow to send the treatment in multiple channels, intermittent access issue related errors appeared while running the activity in logs for multiple customers. This was traced to a missed use case for authentication, and has been resolved.

INC-142084 · Issue 599877

Support added for expression in strategy scorecards

Resolved in Pega Version 8.4.4

When invoking REST against a dataflow that had a strategy containing a scorecard that used an expression and the "Include model explanations option" was enabled in the Strategy configuration, the system failed with the error "PropertyValueInvalid .pxMaxScore Cannot cast the value (unknown) to double". This was traced to the Scorecard explanations failing during serialization when an expression was used, and has been corrected.

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