INC-185322 · Issue 668321
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.
INC-186898 · Issue 670313
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.
SR-D25607 · Issue 495624
Added null-pointer exception handling to PegaInstaller
Resolved in Pega Version 8.4
When upgrading, the error "Error: java.lang.NullPointerException [java] at com.pega.pegarules.deploy.internal.exposecols.jobs.ExposeWrapper.runExposer" appeared and the installation would not proceed. Investigation showed that the null-pointer exception occurred because of class name validation not being performed at the right place. As the null-pointer exception occurred in the main class, it initiated thread pool executor shutdown. However, the consumer pool did not shutdown because it did not receive the correct specific producer message fto do so. This has been resolved by ensuring isValidClass is executed at the right place in ExposeWrapper.java to handle the null-pointer exception, and adding handling for the interrupt exception in consumer thread so that in case of any run time exceptions in the main thread, the consumer thread will not be stuck.
SR-D28719 · Issue 505968
Null archive check added to set import process status
Resolved in Pega Version 8.4
After running a 'prpcServiceUtils.sh import' which failed due to a low-level null pointer error, the job "IMPORTREQUEST-2" then incorrectly showed the status as 'IN PROGRESS' instead of 'FAILED'. In this case, the null-pointer exception occurred because two imports were unintentionally happening at the same time: the process copied up the same set of archives to the service export directory, but the first import processed an archive and deleted it so that the second process failed to find it. When it exited with the null-pointer exception, the status was not set to 'failed'. To resolve this, a null archive check has been added which will set the status to 'failed' if the archive is unsupported, corrupt, or not there at all.
SR-D37980 · Issue 512436
Data page triggered from SLA reloads per interaction
Resolved in Pega Version 8.4
After configuring an SLA goal activity which takes one parameter from a thread-level data page with 'Reload once per interaction' checked and the source of the datapage was a data transform which used pyWorkPage.pyID to set a property value, goals were not updated as expected. If multiple cases reached their SLA goal at the same time, the first case ID was being sent as a parameter to the goal activity for all of the other case IDs. For example, if case 1, case 2, and case 3 reached their goal at the same time, the case 1 ID was passed as the goal activity parameter to case 2 and case 3. This was traced to multiple items that were getting processed in a single agent run picking up the stale data present in data page because it was not being cleared, and has been resolved by removing the Read-Only data pages after every item that is processed, ensuring that it will be reloaded the next time the data page is triggered.
SR-D42888 · Issue 511452
ElasticSearch startup modified
Resolved in Pega Version 8.4
Search was broken on the app-tier node due to the Full-text search startup failing during a re-initialization. As part of normal re-initialization, the existing node is shut down and the Elastic Search node started. However, in this case because the shutdown process was not properly invoked, the system attempted to start the second instance of an ES node on the same machine. The shutdown process is reliant on a boolean flag which indicates if the current status of the full-text search initialization is successful: this flag indicated initialization had failed when actually the ES node had started but failed to validate all the cluster level settings due to topology changes in the Pega cluster. In order to avoid this scenario, the restart has been split so that the node can be marked as started but not initialized. This allows the follow-up reinitializations a greater opportunity to succeed. In addition, the shutdown FTS code has been modified to shutdown ES regardless of the search initialization status.
INC-196389 · Issue 690786
ConfigurationReconciliationTask updated for greater compatibility
Resolved in Pega Version 8.7
After updating from Pega 8.3 to Pega 8.6, models which previously had learning and performance AUC greater than 0.7 reported an AUC of 0.5. This was traced to the update handling in ConfigurationReconciliationTask. AdmRuleBrowser does not perform ruleset resolution, so all rules were returned, for example the rule for model A in both the 08-01 and 08-03 ruleset. The system then iterated over all of the adaptive model rules returned by AdmRuleBrowser in order to assess whether a configuration update was necessary. The condition to update the model rule was met when either the config key did not exist (indicating a newly added configuration) or the model rule was "old" (version <2). For models generated in Pega 8.3 or earlier the version number for all rules must be 1, and the update to Pega 8.6 therefore caused the ConfigurationReconciliationTask to be applied to all adaptive model rules. To resolve this, the configuration update check in ConfigurationReconciliationTask has been removed.
INC-201335 · Issue 690733
ConfigurationReconciliationTask updated for greater compatibility
Resolved in Pega Version 8.7
After updating from Pega 8.3 to Pega 8.6, models which previously had learning and performance AUC greater than 0.7 reported an AUC of 0.5. This was traced to the update handling in ConfigurationReconciliationTask. AdmRuleBrowser does not perform ruleset resolution, so all rules were returned, for example the rule for model A in both the 08-01 and 08-03 ruleset. The system then iterated over all of the adaptive model rules returned by AdmRuleBrowser in order to assess whether a configuration update was necessary. The condition to update the model rule was met when either the config key did not exist (indicating a newly added configuration) or the model rule was "old" (version <2). For models generated in Pega 8.3 or earlier the version number for all rules must be 1, and the update to Pega 8.6 therefore caused the ConfigurationReconciliationTask to be applied to all adaptive model rules. To resolve this, the configuration update check in ConfigurationReconciliationTask has been removed.