INC-166631 · Issue 637023
Default for 'database/oracle/allowOptimization' set to false in patches
Resolved in Pega Version 8.5.4
Recent patches contained an Oracle query optimizer implemented to prevent performance problems and other known Oracle bugs from impacting environments. However, while these changes were well intentioned, they either required providing additional database privileges or adding some configuration changes to provide the information needed in lieu of the privileges. This does not conform to the expected patch experience. To remedy this issue, the optimizations have been switched to being disabled by default in this release so that the behavior on upgrade is the same as prior to the applied patch release. If Oracle performance issues are seen, it is possible to enable the optimizations and provide either the needed privileges or configuration to make use of them. Please note the default remains 'enabled' for Pega 8.6.
INC-169055 · Issue 644760
Performance improvements for database queries and archiving
Resolved in Pega Version 8.5.4
In order to improve the performance of database queries, repetitive unnecessary database calls have been removed, archival queries have been simplified, and diagnostic metrics were added. Optional batch requestors have been added to all archival services with their own DSS settings to allow processing more cases in parallel. It is recommended to create 2 additional indexes to help with the archival process. The indexes will be on:pegadata.pr_metadata (pyisparent, pyobjclass, pyarchivestatus) INCLUDE (pyinskey); pegadata.pr_metadata (pyisparent, pyarchivestatus) INCLUDE (pyinskey);
INC-169518 · Issue 649156
Email address parsing logic updated
Resolved in Pega Version 8.5.4
Email listener functionality for case creation and email notifications was not working as expected after update due to a difference in the the service email rule request header properties (pyInboundEmail.pyFrom & .pyInboundEmail.pyFromDisplayName) clipboard values. This has been resolved by updating the parsing logic for the email addresses to look for an InternetAddress object and then fallback to a regex match.
INC-169764 · Issue 645805
Decision table query performance improvements
Resolved in Pega Version 8.5.4
Severe latency was seen after upgrade, and it was not possible to save business rule changes. This was traced to an issue with the decision rule being treated as a custom rule, and has been resolved by inserting a check. In addition, optimization has been added for queries on the pr_sys_decchg table.
INC-170599 · Issue 645223
DSS partition count setting made backward compatible
Resolved in Pega Version 8.5.4
After upgrade, the DSS to limit the number of partition counted was no longer working and instead used the default value of 20. This has been corrected and made backwards compatible.
INC-170620 · Issue 651804
Handling added for RuleNotFound exception
Resolved in Pega Version 8.5.4
If a declare rule was run on a redux page and the highest ruleset version was withdrawn, a RuleNotFound exception was thrown and step status was set with the message "Failed to find a 'RULE-DECLARE-EXPRESSIONS' ...". This has been resolved by updating the system to avoid throwing a RuleNotFound exception if the candidate list is empty for the declare expression.
INC-170669 · Issue 651810
Handling added for RuleNotFound exception
Resolved in Pega Version 8.5.4
If a declare rule was run on a redux page and the highest ruleset version was withdrawn, a RuleNotFound exception was thrown and step status was set with the message "Failed to find a 'RULE-DECLARE-EXPRESSIONS' ...". This has been resolved by updating the system to avoid throwing a RuleNotFound exception if the candidate list is empty for the declare expression.
INC-170950 · Issue 652329
Handling added for datetime set by relative reference
Resolved in Pega Version 8.5.4
When initializing a datetime property contained within .pxPages() in a data transform rule, if the property being set applied to @baseclass it was initialized as decimal string while all other properties were handled as normal GMT-based Pega date time strings. Investigation showed that the decimal value was set when the target page was given by a relative reference like .pxPages(TEXT) which was also defined on Pages & Classes. This has been resolved with an update to detect relative reference as page name in Pages & Classes tab and fall back to the old assembler.
INC-171753 · Issue 649440
Checks for Apache Tomcat 6 with MSSQL removed
Resolved in Pega Version 8.5.4
After implementing a specific local Tomcat configuration that removed the Tomcat version number from displaying on Tomcat standard error screens, the error "Tomcat 6 not supported or unable to detect version for custom Tomcat: Apache Tomcat. Contact Pega Customer Support!" appeared and Tomcat failed to start. Because Tomcat 6 was not supported for use with Microsoft SQL Server Systems, Pega used the ServletContext.getServerInfo() method to determine the Tomcat version; if the system used Tomcat 6 or an undetermined version in combination with MSSQL then the system would purposefully not start. As Tomcat 6 is no longer supported in Pega 8.5.2 and above, this check is unnecessary in those versions and the Tomcat version 6 checks in ClassMapImpl have been removed to allow serverAllowsMerge to return as true.
INC-172546 · Issue 652877
Resolved classcast exception with assembled HTML controls
Resolved in Pega Version 8.5.4
A classcast exception was being generated on login. Investigation showed the Static Assembler was unexpectedly using a different Assembler to assemble the Html control rule. Standard behavior is that StreamBuilderAssembler assembles controls of type StreamBuilder and ControlAssemblerForVTable assembles controls of type ControlBuilder. In this case, static assembly for HTML controls using VTable was performed using StreamBuilderAssembler, causing a classcast exception when using VTable because the instance of the generated.html class was incorrectly inheriting from StreamBuilder (the parent class of ControlBuilder) instead of ControlBuilder which is the specified interface in the generated.html Java code. This has been resolved by updating the system to skip rules of type 'Rule-HTML-Property'(control) during Static Assembly.