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Browse resolved issues for Platform releases.

Upgrading to Hazelcast 4.x requires downtime during upgrades to Pega Infinity 8.6

Valid from Pega Version 8.6

Pega Infinity™ uses Hazelcast distributed clustering technology to share data and send events between server nodes. Beginning in Pega Infinity release 8.6, Pega Infinity supports Hazelcast 4.x.
 
Note: Note: Because Hazelcast 3.x is in extended support, upgrade to Hazelcast 4.x before the extended support period for Hazelcast 3.x ends.

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:

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.

 

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