How to detect when a rule change invalidates many entries in the Rules Assembly cache (PEGA0032 alert)

Alert log message

A PEGA0032 alert is generated if a rule change (update, delete, or create) produces many invalid entries in the rules assembly cache. The threshold applies to the sum of three counts:

• invalidated rules in the global rules assembly cache
• invalidated rules in the personal rules cache (checked-out rules)
• generated Java classes that were invalidated

Here is an example of the message:

Change to Rule-Obj-Property:PYPURPOSE caused 14 global entries, 14 personal entries (0 personal only), and 4 classes to be invalidated. Rules invalidated (entry count): activity:getshortcutsxml (4), activity:getworkstyle (5), activity:requestorinitialize (5), activity:populatemyrules (4)

Modifying the alert settings

By default, the alert is enabled with a threshold of 10 invalidations. You can modify the setting in the prconfig.xml file as follows:

1. Open the prconfig.xml file and update this alerts section:

<env name = “alerts/fua/invalidation/threshold" value="10" />

2. Set the threshold value to a positive integer identifying the maximum number of invalidations.
3. Stop and restart the server.

Example

For an example, see Pega Developer Network article PRKB-25675 Understanding the PEGA0032 alert.

	alert log, prconfig.xml file, rules assembly
	Understanding alerts Understanding caching Working with the Rules Assembly cache

SysAdmin category