INC-126801 · Issue 576324
Improved cleanup for adm_response_meta_info
Resolved in Pega Version 8.2.8
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-128342 · Issue 594184
Improved cleanup for adm_response_meta_info
Resolved in Pega Version 8.2.8
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-129212 · Issue 572541
Strategy restoration repaired
Resolved in Pega Version 8.2.8
Once a strategy was deleted, it could not be restored afterward and a validation error appeared. This was an issue with some rule components being erroneously marked as required, and has been corrected.
INC-130761 · Issue 570061
ADMSnapshot agent defaults to running on a single node
Resolved in Pega Version 8.2.8
The ADMSnapshot agent runs when ADM is used, and should be run on only one node to prevent duplicate snapshots being created. To ensure preferred behavior, the "Run this agent on only one node at a time" option has been selected by default for ADMSnapshot agent.
INC-131620 · Issue 577537
DSS added to control monitoring data mart purge
Resolved in Pega Version 8.2.8
An enhancement has been added to automatically purge older data in the monitoring data mart at regular intervals so that it doesn't grow large enough to cause a lack of space or cause stress on the database resources. This is handled through the DSS decision/monitoring/daysToKeepData; the default is six months.
INC-132976 · Issue 580682
Performance improvements for Test Strategy data flow
Resolved in Pega Version 8.2.8
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-136394 · Issue 582526
Improved performance for WebTreatments
Resolved in Pega Version 8.2.8
When there were a very large number of treatments propositions in WebTreatments DDR, one analyst trying to save a Treatment caused another analyst to get a DDR locked error. This was traced to the save process for a Proposition taking an excessive amount of time, and has been resolved by modifying the pzModifyDDRule activity to handle cleanup of the pxResults page on edit/update of a decision data rule.
INC-137255 · Issue 584906
Resolved Cassandra query read/write latency
Resolved in Pega Version 8.2.8
Read/write latency was seen when certain Cassandra queries were triggered by the system. This was traced to an unusual case where a flush was not done for an exceptionally long time period, and has been resolved.
INC-142084 · Issue 599876
Support added for expression in strategy scorecards
Resolved in Pega Version 8.2.8
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.
INC-143927 · Issue 599491
Oracle database performance improvements
Resolved in Pega Version 8.2.8
When the IH Summary was enabled and materialized on an ADM model, updating the ADM model was very slow on large sites. This has been resolved by adding several performance improvements for working with Oracle databases, including Oracle pre/post processing steps.