INC-130695 · Issue 587660
Enhancements for upgrading in multi-tenant environment
Resolved in Pega Version 8.5.2
Some muti-tenant installations use the same applications or rule instances with the same pzInsKeys for different tenants. This can cause upgrades to time out due to the system fetching all pzInsKeys (which will have duplicates) and working with them in a default batch size of 500 each over 4 threads. This led to the same keys potentially being allocated and processed in different threads, resulting in duplicate processing and timeouts. This has been resolved by updating the select query to fetch the tentantid and pzInskeys in the MT system to avoid duplicate work in multiple threads. In addition, running Generate Declarative indexes fetches the pzinskeys and generates indexes for each record, but before generating, the existing index for the record is deleted and then inserted. Because the delete query to generate the index was not tenant aware, all of the records for the key were deleted for the tenants for that key, but the new index was created only in one tenant. This has been resolved by enhancing the DELETE query to be tenant aware, which will avoid deleting the indexes for all the tenants given an index key.
INC-133093 · Issue 579968
Added null checks for RAP extraction
Resolved in Pega Version 8.5.2
After creating a RAP file that Included the History class and adding a List Viewer to filter the instances, no instances were added into the RAP file when trying to preview the product rule. Investigation showed there was a null pointer exception that occurred while acquiring the content page from the clipboard, and null checks have been added to resolve this issue.
INC-133214 · Issue 590379
Deployment Manager rollback works for directed inheritance
Resolved in Pega Version 8.5.2
Rollback was not working correctly in Deployment Manager for history classes using directed inheritance. This was traced to a redundant check in AbstractHistoryPageKeeper that enforced the history pages pattern inherited from one of the base history classes, and this has now been removed.
INC-140279 · Issue 597758
JMX logging added to upgrade diagnostics
Resolved in Pega Version 8.5.2
In order to improve diagnostic information, infoForced loggers have been added for debugging upgrade issues related to JMX calls to enable and disable rules creation.
INC-144869 · Issue 606615
Improved ScalarPropertiesWriter logging
Resolved in Pega Version 8.5.2
In order to improve diagnostics, debug loggers have been added to ScalarPropertiesWriter.java to print column name in the logs while creating map between column names and their values from clipboard page.
INC-146595 · Issue 604789
Initialized entryName for light weight inventory instance
Resolved in Pega Version 8.5.2
When running deployment on a new pipeline created for the next minor version, once the deployment process got to the point of showing aged updates, the “view aged updates” came back as blank screen. Viewing the logs showed the aged update elements come back but were missing the pyName associated with them. Investigation showed that the system did not have support for setting the mEntryName for LightweightInventoryInstance objects. This has been resolved by adding a junit to ensure that getEntryName() doesn't return as null and should be equal to pzInsKey.
INC-148154 · Issue 602919
Hot Fix Manager updated to use installation order for schema import
Resolved in Pega Version 8.5.2
Schema changes were not being imported during the hot fix manager DL import process. Investigation showed this was due to hotfixes in the DL being iterated over from newest to oldest, causing older hotfixes to replace the value added to a map by the newer. To resolve this, the system has been updated to use hotfix install order, which considers selected and dependent hotfixes, rather than ordering newest to oldest. This ensures that newer table representations will override older rather than the other way around.
SR-D37317 · Issue 512553
Run Ruleset Cleanup defaults to true
Resolved in Pega Version 8.2.6
After upgrade, the rule categories and rules were not showing correctly in the App view of the Dev Portal. Many warning messages were also logged related to the Decisioning DM Sample application. This was traced to the rules cleanup script not running properly. While there was a workaround of applying the ruleset cleanup scripts manually after removing the queries that reference the pr_engineclasses table, the cleanup will now be set to run by default (run.ruleset.cleanup=true). In addition, the logic to determine which RuleSets to include has been simplified and most of the pr4_rule_vw deletions have been combined.
SR-D38318 · Issue 519710
Data pages explicitly cleared after QP use
Resolved in Pega Version 8.2.6
The Util Node was showing as Offline in the Search Landing Page, and when Jobs were submitted for execution from other Nodes the message "Detected active run with unreachable nodes" was logged. The util node, configured as a backgroundprocessing node, was running QPs; the queue size for custom QPs is 500 messages /queue items per minute, but investigation showed the requestor level and thread level data pages corresponding to the QP activities were not being cleared after use. This led to high heap memory issues that made the node unreachable, and has been resolved by adding code to explicitly remove the data pages when processing has finished.
SR-D48396 · Issue 520423
Hazelcast upgraded to resolve node startup issue
Resolved in Pega Version 8.2.6
Post data upgrade, the ADM tier failed to start and the error "java.lang.IllegalStateException: Node failed to start!" appeared. This was traced to a dormant bug in Hazelcast 3.11 that caused starting nodes to fail when the Hazelcast master node was shutting down, which was exposed by recent Pega changes made to enable parallel restarts of nodes in Cloud environments. Hazelcast delivered a fix for the parallel restart problem and the hotfixed jar has been merged into the platform. In addition, previous logic for loading Admin Studio waited 30 seconds before timing out when fetching information for each node. This caused issues with large clusters and Admin Studio not loading. The logic has been updated in the Admin Studio UI to load the page despite delays/issues waiting for nodes to respond to the gathering of cluster data, and the algorithm to detect remote-call timeout has been updated and is applicable to batch operation.