SR-A3428 · Issue 212424
Modified ClassName pass method for external DBs
Resolved in Pega Version 7.1.9
When DB2 is used as external DB (external table has a date column) and PRPC is hosted on a DB other than DB2, performing an obj-save into an external DB2 database failed with an SQL error. This issue occurred when a class was mapped to a table in an external DB which was not same as Pega hosting DB. In class PageDatabaseMapperImpl.java , function getDatabaseTypeFromEngine is used to check the database type when column type is Date, but the function was using a hardcoded value of class to determine the database type. This has been changed to pass className as parameter and use it to determine database type.
SR-A3744 · Issue 209253
Resolved Vtable NPE during engine start
Resolved in Pega Version 7.1.9
If a Rule-Access-When was defined on the class Data-Admin-System-Settings, search was initialized before the VTable is initialized. While initializing search, a DASS was set and a save operation was performed on the DASS which then tried to perform a security check and attempted to retrieve the Rule-Access-When from the unpopulated VTable cache. This led to an NPE. To resolve this, changes have been made so that search will be initialized after Vtable is populated.
SR-A940 · Issue 205402
Locking issue resolved for importing PUI jars
Resolved in Pega Version 7.1.9
Errors were being generated when importing PUI framework jars. This was an issue where the savepoints created in Saver.executeUpdate needed to be explicitly released on PostgreSQL to avoid locks from accumulating for each of the nested transactions, and the problem has been resolved.
SR-A990 · Issue 205075
Post-upgrade deferred list mapping reference inserted for new classes
Resolved in Pega Version 7.1.9
After migrating, the processing of the deferredlist while performing an updatestatus operation generated an exception from pzMapCases. This was caused by a class mapping issue where the new classes (InsertRuleSummary, UpdateRuleSummary, DeleteRuleSummary) added in DeferredOperationsImpl did not have interfaces in DeferredOperation. This has been corrected.
INC-161984 · Issue 638858
Web Tier busy threads released on timeout
Resolved in Pega Version 8.7
Tomcat Web Tier Busy Threads were not being correctly released, causing stability and performance problems that included health check pings not receiving a thread to service the request so the node was marked as bad, users were quiesced, and the node replaced. Investigation showed the 'put' on the blocking queue did not time out when the queue was full and waited indefinitely, keeping the thread blocked. To resolve this, the system will use 'offer' on the blocking queue instead of 'put' to force thread release on timeout. In addition, debug logs have been added to understand when the offer (or Put) does not succeed and the state of the queue that is causing this issue; the debug logs for class com.pega.pegarules.session.internal.serverpush.RoboticAutomationImpl should be enabled only if the thread busy issue is observed and for limited time window while actively debugging.
INC-164794 · Issue 637993
Apache Commons libraries updated
Resolved in Pega Version 8.7
Apache commons-codec has been updated to version 1.15 , and Apache commons-io has been updated to version 2.7.
INC-168696 · Issue 645531
Improved logging for column population exceptions
Resolved in Pega Version 8.7
Improvements have been added to logging to assist in capturing issues with OptimizationMetadata that could lead to a ColumnPopulationException.
INC-170599 · Issue 645222
DSS partition count setting made backward compatible
Resolved in Pega Version 8.7
After upgrade, the DSS 'dsm/services/stream/pyTopicPartitionsCount' used to limit the number of partitions was no longer working and instead used the default value of 20. This has been corrected and made backwards compatible.
INC-171314 · Issue 656864
Check added to ensure read locks are released
Resolved in Pega Version 8.7
Read locks were not being properly released if a thread was holding a read lock and the system encountered an issue such as an out of memory condition. To resolve this, an update has been made to DeclarativePageDefinitionCacheImpl which will check whether a thread holds any read lock before trying to acquire a write lock, and if so release all the read locks held by that thread.
INC-172675 · Issue 649455
Configuration added for extending queue processor timeout
Resolved in Pega Version 8.7
Alerts for queue processor (QP) items which took more than 15 minutes to run could result in the system marking the node as 'unhealthy'. In environments with Pega Health Check enabled, this would shut down the node gracefully. It was not possible to change this default as it was hardcoded. In order to support systems that may have custom processes that run beyond 15 minutes, a a new setting has been exposed that allows configuration of the interval after which a node with long-running queue processor is marked as unhealthy and is restarted. By default this remains 900000 milliseconds / 900 seconds / 15 minutes, but it may be adjusted up to 24 hours to avoid premature node shutdown. The stale thread detection mechanism will take that setting into account and use the provided value or default to 15 minutes if the value was not provided. In addition, the threshold's units in the UI have been changed from ms to seconds.