Published Release Notes

Simplified deployment of stand-alone Apache Ignite servers

You can now install or upgrade Pega^® Platform in client-server mode, which uses Apache Ignite in a simplified way. The new installation process for stand-alone Apache Ignite servers does not require that you provide database credentials in a text file to communicate with Pega Platform nodes (clients). You provide this information by using JNDI support instead.

For more information, see Apache Ignite client-server clustering topology and the appropriate Deployment Guide.

Rules Assembly cache is deprecated

Rules Assembly (RA) cache and custom settings for its corresponding fua/assemblyCacheModeprconfig.xml file setting are deprecated because they are obsolete. A warning is logged at startup if a custom (non-default) value is specified for fua/assemblyCacheMode in the prconfig.xml file. The functional behavior of the system is not affected.

Use of PegaRULES_Extract_Marker.txt to delete cache is deprecated

The PegaRULES_Extract_Marker.txt file is deprecated. The system uses the presence or absence of the PegaRULES_Extract_Market.txt file to determine at startup whether to delete the static content, service export, and lookup list file system-based caches. In the rare situation that you need to delete these caches manually, use the System Management Application (SMA) ETier Static Content Management page. Using SMA does not require restarting the node.

Support for Apache Cassandra

The Pega^® Platform can now read data from and write data to an Apache Cassandra database. Apache Cassandra is a NoSQL database that you can use when a NoSQL database better meets your scalability and processing requirements.

For a list of supported and unsupported features, see Apache Cassandra support.

New alerts for the Apache Ignite cluster

New Pega^® Platform alerts identify issues with Apache Ignite cluster members (nodes) that operate either in client mode or server mode. Refer to these alerts to diagnose problems with the Apache Ignite cluster and to protect against hard-drive failures or loss of data.

The new alerts are:

• PEGA0088: Client node unexpectedly disconnected from the cluster
• PEGA0089: A node left the cluster
• PEGA0090: Cluster segmentation causes subclusters to form
• PEGA0091: Data stored in one or more cluster caches is lost
• PEGA0092: Number of servers in the cluster falls below the recommended settings

For more information about alerts, see Performance alerts, security alerts, and Autonomic Event Services.

New alert for distinct values query

The PEGA0093 alert identifies performance issues when a distinct values query from virtual reports or the getDistinctValuesForProperty API take longer than the threshold. For more information, see PEGA0093: Distinct values query took more than the threshold.

Enable email notifications on agent failure

You can now get email notifications each time an agent fails with a PEGA0010 alert. By receiving notifications on agent failure, you can immediately take action to restart or fix the agent. You can enable email notifications on the Agent Management landing page.

For more information, see Enabling notification on agent failure and PEGA0010 alert: Agent processing disabled.