SR-D60268 · Issue 521460
Performance and thread-handling improvements for SSA
Resolved in Pega Version 8.1.8
The SecureRandom class was used internally by SSAExecutionContext indirectly via UUID generation. Because this exhibited performance issues on some Linux environments, UUID has been replaced with static AtomicLong. In addition, a memory leak was observed when the strategy (SSA) execution resulted in an exception, and the strategy template has been modified to gracefully shutdown the VM under all circumstances. Thread-safety measures have also been tuned to be more fine-grained to reduce the potential thread contention that was seen while borrowing the SSAInterpreter object from SSAInterpreterPool.
SR-D68558 · Issue 536676
Timing updated for Cassandra session change thread lock
Resolved in Pega Version 8.1.8
An issue with unresponsive nodes was traced to the method used for notifications about Cassandra session changes. A thread trying to obtain a Cassandra session acquired a read lock, then if it then determined that a new session had to be created it would also acquire a write lock, preventing other nodes from trying to acquire the session. After creating a session, the thread notified all session change listeners while holding the write lock, causing deadlock with dependent services. To resolve this, the timing has been updated by moving the session change notification to the listeners outside of the section guarded by the lock.
SR-D85095 · Issue 546340
Updated COUNT logic for strategies with ssavm set to true
Resolved in Pega Version 8.1.8
An error was seen when attempting to save a strategy after setting ssavm to true, indicating an issue in the “COUNT” method in Group By shape. Since the source field is not used and does not need to be evaluated here, the system has been updated to ignore the source field if the operation is COUNT.
SR-D71408 · Issue 534932
DIrty check flag triggered by adding columns and filters
Resolved in Pega Version 8.1.8
If a report was edited and closed without saving, the dirty check worked as expected. However, if new columns or filters were added and the report closed without saving, the dirty check did not appear. This has been resolved by updating the check logic.
SR-D53176 · Issue 541793
Error when adding function filter will persist
Resolved in Pega Version 8.1.8
When an exception occurred while adding a filter in the report viewer, the error was shown but cleared due to an immediate refresh of the parent section. Analysis found that step2 of pzGetFiltersFromContent was failing, after which the error was shown, the section reload happened, and the error disappeared. To resolve the error being cleared prematurely, the pzOnLoadReloadReport control has been modified so that when there are messages on the top level page (pyReportContentPage), a parameter will be set on HarnessContextMgr to not to clear them during the next refresh call.
SR-D76204 · Issue 543591
Index conflict resolution logic updated
Resolved in Pega Version 8.1.8
After configuring a dedicated index on delivered Class - PegaCA-Interface-Contact, trying to generate the index resulted in an error indicating a type conflict in delivered classes/properties. This has been resolved by updating the conflict resolution logic.