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.
SR-D32991 · Issue 504129
Email Discussion Thread retains Formatting
Resolved in Pega Version 8.3.1
CSS styles were not being retained in the discussion thread when replying to InboundCorrespondence cases. This was traced to a missing value in Param.latestReply activity pzCreateExternalPostFromMail, and has been resolved by setting an initial plain text value to the param.latestReply before it is set with the HTML value. This prevents having a blank parameter value if the incoming HTML value is empty.
SR-D28342 · Issue 504970
ChatMashup loading issue with IDP resolved
Resolved in Pega Version 8.3.1
When using a harness containing chat scripts via Mashup that called an activity to set parameters, attempting to launch the Mashup from an external application failed on the first attempt: an incorrect URL was generated and the activity was not triggered, resulting in an empty harness. The second attempt to launch the Mashup worked as expected. This was seen when using an IDP initiated Login with query string - pyActivity= classname.ActivityName, and there was a workaround to use SP initiated login or to use the activity URL directly on the IDP portal. Investigation showed that the resourcePath was coming as http in SSL enabled system, but the reqURI was still https. To correct this, the system has been updated so that if the reqContextURI starts with https and the requestURL starts with http, then the requestURL will be converted to https.
SR-D16934 · Issue 493702
External Cassandra nodes listed in DDS cluster
Resolved in Pega Version 8.3.1
Nodes of an external Cassandra cluster were not listed in the DDS cluster except for the first one in the host list, and when the “only” listed Cassandra node was restarted, the status on the DDS cluster LP did not become “NORMAL” afterwards. In addition, even though other C* nodes were up and running, the external Cassandra cluster was reported as unreachable. This was an unintended side effect of work done on the landing page to reflect the real state of the nodes after some were killed and restarted, and has been corrected by refining the equals() and hashCode() methods for DDS member info in order to better differentiate the external Cassandra nodes.
SR-D22686 · Issue 493516
IH summaries working with external Cassandra
Resolved in Pega Version 8.3.1
Summaries were not working for external Cassandra. This was an issue with the IH summary component using the aggregated dataset as a reference, and this fix contains several components to improve this function. An issue where the IH aggregates dataset does not materialize when DDS is external Cassandra has been resolved by modifying the code that checks the DDS availability. A filter that was used to match “” did not work when pre-aggregation is off : this was due to the IH Browse operation being done outside of a DF context, and has been fixed. The IH Summary shape not working properly in a strategy if it referenced an aggregate dataset with pxInteractionID as part of the group-by properties was traced to an issue with it generating a pxInteractionID value when executing the strategy, and has been resolved by excluding pxInteractionID from the group keys in the IH Summary shape.