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Resolved Issues

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INC-159836 · Issue 631206

Upgraded Apache UIMA Ruta libraries to resolve memory leak

Resolved in Pega Version 8.6.2

A memory leak issue that resulted in a reboot being needed every few days was traced to the class org.apache.uima.ruta.rule.RuleMatch. This has been resolved by upgrading the Apache UIMA Ruta libraries to v2.8.1.

INC-172785 · Issue 662333

Adaptive model retry mechanism enabled

Resolved in Pega Version 8.6.2

Adaptive models were missing from the Model Management page as well as in the Prediction studio while similar models for the same proposition, only differing by the Channel name, were visible. This was traced to data not being synchronized between the database and Cassandra. The pegadata.pr_data_adm_factory database table did not contain the record of the missing channel, but Cassandra did. Since the current Cassandra adm_scoringmodel contained model information, the system still believed the model was present. In order to ensure Cassandra and the database table are in sync, an update has been made to enable the retry mechanism "SyncFactoryKeysTask" to create the ADM model in factory table by periodically looking for scoring models without factories or an entry in adm_meta.

INC-173596 · Issue 660220

Google OAuth and Spring versions updated

Resolved in Pega Version 8.6.2

The Google-oauth-client jar has been upgraded to version 1.31.1, and SpringFramework libraries have been updated to version 5.3.9 .

INC-174781 · Issue 655122

Kerberos authentication added for external Cassandra

Resolved in Pega Version 8.6.2

Support has been added for Kerberos authentication with Cassandra.

INC-175207 · Issue 664360

Added handling for DSM Services stuck in leaving status after database outage

Resolved in Pega Version 8.6.2

During a database outage, the heartbeat would fail and DSM services would eventually try to enter safe mode and stop. As the first step they would try to change the state to LEAVING, but because the database was down saving the LEAVING state failed and the exception was not handled correctly. This resulted in the rest of the stop operation logic not being executed and the service being stuck in LEAVING. To resolve this, an update has been made to ensure the service goes to LEAVING_FAILED if anything fails during the stop operation including when setting state to LEAVING_FAILED. The state LEAVING_FAILED will get flushed to the database eventually when it comes back up. This will allow the aggregation service to start from the LEAVING_FAILED state and recover by itself after a database outage.

INC-176757 · Issue 657787

Interaction History properly saved when running strategy on a different data flow

Resolved in Pega Version 8.6.2

Customized Interaction History properties that had been added to pyInteractionHistoryConfiguration and pyDefaultWorkingSet and saved into the PR_DATA_IH_FACT table were not being saved properly after upgrading from 7.3 to 8.3. This was a missed use case and has been resolved.

INC-177031 · Issue 664857

Adaptive model retry mechanism enabled

Resolved in Pega Version 8.6.2

Adaptive models were missing from the Model Management page as well as in the Prediction studio while similar models for the same proposition, only differing by the Channel name, were visible. This was traced to data not being synchronized between the database and Cassandra. The pegadata.pr_data_adm_factory database table did not contain the record of the missing channel, but Cassandra did. Since the current Cassandra adm_scoringmodel contained model information, the system still believed the model was present. In order to ensure Cassandra and the database table are in sync, an update has been made to enable the retry mechanism "SyncFactoryKeysTask" to create the ADM model in factory table by periodically looking for scoring models without factories or an entry in adm_meta.

INC-177877 · Issue 661177

Write lock check added to avoid thread contention

Resolved in Pega Version 8.6.2

After updating the Pega platform and NBA Designer, a significant drop in performance for multilevel strategies was observed. Investigation showed that invoking a sub strategy containing external input intermittently caused a thread contention issue related to write lock. This was traced to overzealous write locking of a component where only a read lock for the thread was required, and has been resolved by adding a verification check to determine whether a write lock is necessary for a given operation before acquiring it.

INC-178214 · Issue 664889

D_ProjectList updated to resolve defined databases error

Resolved in Pega Version 8.6.2

After update, an API error for D_ProjectList indicating "No databases defined" was seen when trying to load decision and templates for the first time. The error did not reoccur after the initial save. This was has been resolved by updating the handling for loading the properties file during class loading. The error has also been changed to an exception.

INC-178938 · Issue 661496

Exception handling added for ClipboardPropertyCollection

Resolved in Pega Version 8.6.2

After upgrading from Pega v7.3 to 8.5, validating the existing strategy logic generated the error "ClipboardPropertyCollection is not a supported ILType". This was traced to the special Pega expression type PropertyCollection not being supported by IL, and has been resolved by adding logic that will throw a more appropriate exception (instead of the generic PRRuntimeException) so the event can be caught by the existing fallback logic.

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