Upgrading to Hazelcast 4.x requires downtime during upgrades to Pega Infinity 8.6
Valid from Pega Version 8.6
Upgrade impact statement
On-premises upgrades of Pega Infinity release 8.4.2 and later to version 8.5.1 or later on Tomcat and PostgreSQL are completed with near-zero downtime. However, upgrading to Hazelcast 4.x requires that you shut down and restart your application server.
What is required to update the application to be compatible with this change?
Hazelcast 3.x is enabled by default. For near-zero downtime upgrades, you do not need to perform any action.
For instructions about upgrading to Hazelcast 4.x, see one of the following topics:
- For near-zero downtime upgrades from Pega Infinity release 8.4.2 or later on Tomcat and PostgreSQL, see "Optional: upgrading to Pega Platform version 8.6: Upgrading to Hazelcast 4.x" in Near-zero downtime Upgrade Guide for Pega Platform version 8.4.2 and later for Tomcat and PostgreSQL.
- For all other upgrades, see "Optional: upgrading to Hazelcast 4.x" in the appropriate upgrade guide.
External data flow rules are removed
Valid from Pega Version 8.6
In previous versions of Pega Platform™, you could configure data flows to run in an external Hadoop environment. The external data flows functionality was deprecated and hidden from view in Pega Platform 8.5. The functionality has been now removed and is no longer available in Pega Platform 8.6.
For more information, see External data flow rules are deprecated.
Legacy Parse XML rule configurations must be upgraded to edit them
Valid from Pega Version 8.6
If your application has Parse XML rules that use the legacy configuration from Pega Platform™ 5.x, you cannot edit these rules after you upgrade to Pega Platform 8.6 until after you upgrade them to use tree-based parse rule configuration.
You must upgrade a Parse XML rule that you want to edit if it shows the following warning when you open it in Dev Studio.
This type of Parse XML rule is deprecated. An upgrade should be performed.
An option to upgrade also displays below the message.
Upgrade impact
Parse XML rules with the legacy configuration do not map data to the clipboard, and the rule definition is empty. After you upgrade to Pega Platform 8.6, you cannot edit Parse XML rules that you created in Pega Platform 5.x or earlier until you upgrade them to use tree-based parse rule configuration.
What steps are required to update an application to be compatible with this change?
Update legacy Parse XML rules to use tree-based parse rule configuration before you edit them in Pega Platform 8.6. Using tree-based parse rules is considered a best practice.
- Open the legacy Parse XML rule.
- On the Mapping tab, click Upgrade.
Result: The Allow tree editing? check box is displayed and is automatically selected. You can add attributes and elements to the tree structure, or delete them. - Save the upgraded rule configuration.
For more information, see Parse XML rules.
Insights from 8.5 require additional configuration after upgrade
Valid from Pega Version 8.6
Upgrade impact
After you upgrade Pega Platform™ version 8.5 to 8.6, the Explore Data landing page might not include insights that come from the earlier version of the product.
What steps are required to update the application to be compatible with this change?
Run the pxUpgrade85Insights activity to make all insights from version 8.5 accessible for you in 8.6. By running this activity, you upgrade insights with new metadata that is required in version 8.6. For example, the pxUpgrade85Insights activity provides you with the option to set the visibility of insights to private, public or shared.
For more information about insights, see Visualizing data with insights.
Connect MQ rules configured with alias queue do not work after upgrade
Valid from Pega Version 8.6
Connect MQ rules that you defined with an alias queue in earlier versions of Pega Platform do not work after an upgrade to Pega Platform 8.6.
Upgrade impact
If you defined an alias queue in Connect MQ rules, after an upgrade to Pega Platform 8.6, those Connect MQ rules do not work.
What steps are required to update an application to be compatible with this change?
In the Pega-IntegrationEngine ruleset, create the following dynamic system settings and their default values:
- "mq/pmo" = 0
- "mq/gmo" = 0
- "mq/oo_request" = 1040
- "mq/oo_response" = 16
For more information, see Creating a dynamic system setting.
Improved indexing of StringList and StringGroup property types
Valid from Pega Version 8.6
Search and Reporting Service in Pega Platform™ 8.5 may improperly index StringList and StringGroup property types. As a result, the data model does not include the affected properties.
Upgrade impact
After upgrading to Pega Platform version 8.6, the system requires that the classes with the StringList or StringGroup type are reindexed.
What steps are required to update the application to be compatible with this change?
On the Search Landing Page, manually reindex all the classes that include properties with the StringList or StringGroup types to ensure that all your data is present in the data model. Alternatively, if finding specific instances of classes is difficult, you can reindex all classes in your application.
For more information, see Indexing class data.