Published Release Notes

Tomcat log files moved to work directory

For Tomcat application server users, the default path for PRPC logs has been changed to the "work" directory for Catalina. For example:

<tomcat>\work\Catalina\localhost\prweb

This directory can be cleaned up during administration. To avoid loss of files, you can redirect logging to a different directory after installation:

1. Navigate to the <tomcat-home>\webapps\prweb\WEB-INF\classes directory.
2. Open the prlogging.xml file.
3. Locate the "appender" definitions section that contains the "@{web.tmpdir}" string
4. Update the FileNamePattern values to point to the new directory.

For more details, refer to the “Change the default path to PRPC logs” section in the Tomcat installation guide for your database.

Slow WebSphere performance on Mac platforms

Use the following JVM setting to improve WebSphere performance on Mac platforms:

-Djava.net.preferIPv4Stack=true

Split schema systems require additional privileges

On Oracle split schema systems, add the following database privileges:

• Grant DROP ANY INDEX to the Admin User.
• Grant UNLIMITED TABLESPACE to the Rules User.

Use the Oracle Enterprise Manager to add these privileges or refer to the 7.1.3 Upgrade and Installation guides for Oracle.

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.

Requestor pools management in Designer Studio

On the new Requestor Pools landing page, you can view and manage requestor pools across the cluster, including on the current node and remote nodes. By using this landing page, you can tune the requestor pools to improve the performance of services. You can clear the requestor pool for a service package and view the requestor pool basic metrics and configured thresholds.

For more information, see Requestor pools management, Clearing a requestor pool, Viewing details for a requestor pool, Tuning a requestor pool configuration.

Module version report generated from Designer Studio

From the new Class Management landing page, you can generate the module version report that provides information about classes in your system, module versions, and version creation dates. You can generate the report for all the nodes in the cluster or for a selected node that is either current or remote. The report is useful for debugging system problems because it helps identify the module version that is causing problems on a specific node.

For more information, see Module version report.

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.

Improved Clipboard performance

Clipboard performance has been enhanced to use high-speed, read-only data pages, making processing faster. For some high throughput use cases, performance might be degraded. If performance is degraded, you can use a restricted feature set for a specific read-only data page by selecting Restricted feature set for high throughput on the Load management tab of the data page rule.

For information about unsupported features when using a restricted feature set, see High-speed data page support.

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.

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.