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-121460 · Issue 569118
IH Summaries correctly loads aggregated count
Resolved in Pega Version 8.4.2
After the IH Aggregated DataFlow has processed more than 34 million records from an Oracle database, the IH Fact table contained only ~120,000 records. Running a browse on the pxInteractionHistory DS resulted in an infinite loop. Investigation showed that this was caused by the handling of Oracle timestamps: using Pega DateTime in query parameters generated Oracle DATE instead of TIMESTAMP, causing all query parameters to be rounded to the second and interfering with the IH pre-aggregation. This has been resolved by updating the handling.
INC-122180 · Issue 563270
Null check added for Entity Extraction result
Resolved in Pega Version 8.4.2
Training data for an Entity Extraction model was not getting distributed correctly, as per the given % data. This was due to the result of the Entity Extraction result being null, and has been resolved by adding a check that will consider detected types as primary candidate for grouping if the result column is null.
INC-125838 · Issue 561484
Ignore Case feature updated
Resolved in Pega Version 8.4.2
In Pega Marketing 8.4 on the Action rule form, configuring an eligibility criteria and selecting the option for the comparison to ignore case did not copy this part of the criteria to the back proposition filter rule, so the case of the comparison was not ignored at runtime. This has been corrected.
INC-125900 · Issue 560788
ResolveFTCR flow Draft mode turned off
Resolved in Pega Version 8.4.2
When using the FastTrack Change Request functionality of Revision Manager 8.3 the submission was going to Pending packaging instead of Resolved-Completed with the error "flow is in draft mode; it cannot be executed". This was due to pxResolveFTCR flow having been checked in with Draft mode turned on, and has been corrected by turning Draft mode off.